Prof. Dr. YUSUF YILDIRIM

Opthalmology

MEDİPOL Acıbadem District Hospital / Medipol Mega University Hospital
YUSUF YILDIRIM

Birthplace

TRABZON

Languages

ENGLISH

Medical Areas of Interest

  • Smart Lens (Premium Intraocular Lens) Procedures
  • Presbyopia and its treatment
  • Laser procedures – PRK, LASIK, SMILE Pro
  • Phakic IOL procedures (ICL, etc.)
  • Keratoconus and its treatment
  • Corneal transplantation – Keratoplasty (PKP, DALK, DMEK, PDEK)
  • Corneal infections and their treatment
  • Limbal stem cell deficiencies and their treatment

Highlights

Born in Trabzon in 1982, Prof. Yusuf Yıldırım, MD completed his high school education at Trabzon Kanuni Anatolian High School and graduated from Istanbul University Faculty of Medicine in 2006. He began his specialization training in ophthalmology at Beyoğlu Eye Training and Research Hospital between 2006 and 2010; during this period, he served as an assistant researcher in many clinical studies. These studies include the Age-Related Macular Degeneration clinical study with Neovista Inc. in 2007, the Keraflex study in myopia treatment with Avedro Inc. between 2009 and 2010, and the Keraflex treatment studies with Avedro Inc. between 2009 and 2011.

After completing his specialist training, he continued his work at the Cataract and Refractive Surgery Unit and the Corneal and Ocular Surface Diseases Unit of Beyoğlu Eye Training and Research Hospital. He received his European Board of Ophthalmology (FEBO) certification in 2016 and his International Council of Ophthalmology (FICO) certification in 2018; and completed his Corneal and External Diseases Subspecialty Diploma in 2019. In 2020, he earned the title of member of the Royal College of Surgeons of Edinburgh (MRCS).

Prof. Yusuf Yıldırım, MD who served as an Associate Professor at Beyoğlu Eye Training and Research Hospital of Health Sciences University, later served as a Professor and Clinical Training Coordinator at Başakşehir Çam and Sakura City Hospital of Health Sciences University, a position he held until 2024. As of July 2024, he is working as a Professor and Clinical Educator at Istanbul Medipol University Medipol Acıbadem District Hospital.

Prof. Yusuf Yıldırım, MD who has performed over 10,000 cataract surgeries since 2006, has clinical expertise in ocular surface reconstruction (limbal stem cell transplantation and pterygium surgery), corneal transplantation techniques (penetrating keratoplasty, lamellar keratoplasty, DALK and DMEK), and since 2012, refractive surgery procedures (PRK, LASIK – mechanical keratome and femtosecond laser, SMILE, phakic intraocular lens implantation). He also serves as a researcher in clinical studies on phakic toric intraocular lenses.

Prof. Yusuf Yıldırım, MD whose academic work includes 84 scientific articles, has an H-index of 17 according to Web of Science data and has received 830 citations. According to Google Scholar data, his H-index is 23 and his total number of citations is 1,451. Fluent in English, Prof. Yusuf Yıldırım, MD won second place in the best poster award at the ESCRS Congress held in London in 2014.

Having supervised the specialization theses of many resident physicians, Prof. Yusuf Yıldırım, MD has made significant contributions to academic development. He has also authored and edited several books on ocular surface diseases, cornea, and refractive errors such as presbyopia. Continuing his scientific productivity and contributing to the training of new physicians, Prof. Yusuf Yıldırım, MD continues to offer the most up-to-date and effective treatment methods to his patients at Istanbul Medipol University and Medipol Acıbadem District Hospital.

Experiences

2023 - 2024

SBÜ Başakşehir Çam and Sakura City Hospital Eye Clinic, Program Director

2023 - 2024

SBÜ Başakşehir Çam and Sakura City Hospital Eye Clinic, Program Director

Prof. Dr.

2020 - 2023

SBÜ Başakşehir Çam and Sakura City Hospital Eye Clinic, Program Director

2020 - 2023

SBÜ Başakşehir Çam and Sakura City Hospital Eye Clinic, Program Director

Assoc. Prof. Dr.

2018 - 2020

SBÜ Istanbul Prof. Dr. N. Reşat Belger Beyoğlu Eye Training and Research Hospital

Assoc. Prof. Dr.

2018 - 2020

SBÜ Istanbul Prof. Dr. N. Reşat Belger Beyoğlu Eye Training and Research Hospital

2013 - 2018

Istanbul Prof. Dr. N. Reşat Belger Beyoğlu Eye Training and Research Hospital

Chief Assistant

2013 - 2018

Istanbul Prof. Dr. N. Reşat Belger Beyoğlu Eye Training and Research Hospital

2012 - 2013

Patnos State Hospital, Ağrı

2012 - 2013

Patnos State Hospital

Specialist Dr.

2011 - 2012

Kanuni Sultan Süleyman Training and Research Hospital

Specialist Dr.

2011 - 2012

Kanuni Sultan Süleyman Training and Research Hospital, Istanbul

2006 - 2011

Istanbul Prof. Dr. N. Reşat Belger Beyoğlu Eye Training and Research Hospital

Educations

2011

Medical Specialization, SBÜ Beyoğlu Eye Training and Research Hospital

2011

SBÜ Beyoğlu Eye Training and Research Hospital, Ophthalmology

2006

Istanbul University, Faculty of Medicine

Videos

Video

Publications

1. Ceylan A, Aydin FO, Karapapak M, Aydın S, Ozal SA, Yildirim Y. Nd:YAG Laser Capsulotomy vs. Needle Aspiration in Intumescent Cataracts: A Comparative Study of Complications and Outcomes. J Cataract Refract Surg. 2024 Jul 2.

2. Çakır GY, Çakır İ, Yıldız BK, Yıldırım Y. Effective optical zone: Differences between small-incision lenticule extraction and femtosecond LASIK for myopia. Indian J Ophthalmol. 2024 May 20.

3. Gunay M, Turk A, Kurt IM, Uzlu D, Kose B, Yildirim Y. Gonioscopy-assisted transluminal trabeculotomy as a primary surgical option for glaucoma in Fuchs uveitis syndrome: A case series. Eur J Ophthalmol. 2024 May 6

4. Ceylan A, Onal I, Aydin FO, Mergen B, Yildirim Y. Improvement of Clinical Findings, Meibography and Tear Film Parameters in Pediatric Ocular Rosacea Patients After a Standard Treatment Protocol. Ocul Immunol Inflamm. 2024 Mar 21:1-8

5. Kırgız A, Yalçınkaya Çakır G, Çakır İ, Yıldırım Y, Ağca A. Seven-Year clinical outcomes after implantation of Eyecryl posterior chamber phakic intraocular lenses for high myopia. Eur J Ophthalmol. 2024 Jan 31:11206721241229311

6. Mergen B, Onal I, Gulmez A, Caytemel C, Yildirim Y. Conjunctival Microbiota and Blepharitis Symptom Scores in Patients With Ocular Rosacea. Eye Contact Lens. 2023 Jun 26. doi: 10.1097/ICL.0000000000001008.

7. Ceylan A, Mergen B, Aydin FO, Avci E, Yildirim Y. Sutureless Amniotic Membrane Transplantation Using Pediatric Nasogastric Tube for Patients With Acute Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis. Eye Contact Lens. 2023 Mar 21. doi: 10.1097/ICL.0000000000000986.

8. Savur F, Yildirim Y. Delayed Primary Reposition in a Patient with Traumatic Globe Avulsion: A Case Report. Beyoglu Eye J. 2023 Mar 1;8(1):64-68. doi: 10.14744/bej.2022.27247. PMID: 36911219; PMCID: PMC9993409.

9. Cakir I, Sonmez O, Pehlivanoglu S, Cakir GY, Yildiz BK, Yildirim Y, Agca A. Long-term results of a new posterior chamber phakic intraocular lens in patients with high myopia: 5-year results. J Cataract Refract Surg. 2023 Apr 1;49(4):409-415. doi: 10.1097/j.jcrs.0000000000001110.

10. Tunç U, Ar CÇ, Ekren BY, Yıldırım Y, Yıldız BK, Okullu SÖ, Sezerman OU. Corneal bacterial microbiome in patients with keratoconus using next-generation sequencing-based 16S rRNA gene analysis. Exp Eye Res. 2023 Jan 31:109402. doi: 10.1016/j.exer.2023.109402.

11. Yildiz I, Altan C, Cakmak S, Genc S, Yildirim Y, Agca A. Comparison of Intraocular Pressure Measurements with Goldmann Applanation Tonometry, Tonopen XL, and Pascal Dynamic Contour Tonometry in Patients with Descemet Membrane Endothelial Keratoplasty. J Glaucoma. 2022 Aug 3. doi: 10.1097/IJG.0000000000002089.

12. Kirgiz A, Tülü Aygün B, Aşik Nacaroğlu Ş, Tellioglu A, Yildirim Y et all. Changes in anterior chamber dimensions following small incision lenticule extraction (SMILE). Int Ophthalmol. 2022 Jul 19. doi: 10.1007/s10792-022-02429-9.

13. Semih Çakmak, Ahmet Kirgiz, Yusuf Yildirim, Sariye Taşkoparan, Selim Genç, Alper Ağca. The effect of anterior segment parameters on surgical success of Descemet membrane endothelial keratoplasty: a prospective study. Int Ophthalmol. 2022 Jul 10. doi: 10.1007/s10792-022-02416-0.

14. Taskoparan S, Genc S, Cakmak S, Oztutuncu O, Yildiz BK, Yildirim Y. Phototherapeutic keratectomy: current approaches and changing trends in a tertiary eye clinic. Arq Bras Oftalmol. 2022 May 9:S0004-27492022005006201. doi: 10.5935/0004-2749.20230055

15. Gumus G, Altan C, Yildirim Y, Beşek NK, Genç S, Kirgiz A, Durusoy GK, Ağca A. Early intraocular pressure changes following different keratoplasty techniques and association with cornea parameters and anterior chamber depth. Ther Adv Ophthalmol. 2022 Mar 19;14:25158414221083359. doi: 10.1177/25158414221083359.

16. Topcu H, Yildiz BK, Yildirim Y, Agca A. The relationship between systemic disorders and anatomical outcomes after Descemet membrane endothelial keratoplasty. Arq Bras Oftalmol.

2022 Feb 14 doi: 10.5935/0004-2749.20220087

17. Yalçınkaya G, Yıldız BK, Çakır İ, Yıldırım Y, Demirok A. Evaluation of peripapillary – macular microvascularity and choroidal vascularity index after refractive surgery. Photodiagnosis Photodyn Ther. 2022 Jan 4:102714. doi: 10.1016/j.pdpdt.2022.102714.

18. Beşek NK, Yalçınkaya G, Kırgız A, Çakmak S, Genç S, Nacaroğlu ŞA, Yıldız BK, Yıldırım Y, Ağca A. Graft survival and clinical outcomes of Descemet membrane endothelial keratoplasty: long-term results. Int Ophthalmol. 2021 Oct 12. doi: 10.1007/s10792-021-02078-4.

19. Tunç U, Yıldırım Y, Çelebi ARC, Yıldız BK. Potential role of ocular surface microbiota in keratoconus etiopathogenesis. Expert Review of Ophthalmology, DOI: 10.1080/17469899.2021.1942844

20. Cakir I, Demir G, Yildiz BK, Öcal MC, Yildirim Y, Agca A. Efficacy and safety of iris-supported phakic lenses (Verisyse) for the treatment of high myopia: 5-year results. Int Ophthalmol. 2021 Apr 16. doi: 10.1007/s10792-021-01841-x.

21. Yildirim Y, Akbas Y, Tunc U, Yildiz BK, Er MO, Demirok A. Visual Rehabilitation by Using Corneal Wavefront-guided Transepithelial Photorefractive Keratectomy for Corneal Opacities after Epidemic Keratoconjunctivitis. Int Ophthalmol. 2021 Mar. doi: 10.1007/s10792-021-01772-7

22. Ondes Yilmaz F, Kepez Yildiz B, Tunc U, Kandemir Besek N, Yildirim Y, Demirok A. Comparison of topical omega-3 fatty acids with topical sodium hyaluronate after corneal crosslinking: Short term results. Ocul Immunol Inflamm. 2021 Feb 9:1-7. doi: 10.1080/09273948.2020.1858117.

23. Kirmaci A, Kepez BK, Yildirim Y et all. Refractive and visual outcomes of small incision lenticule extraction (SMILE) in eyes with thin corneas. Eye (Lond). 2020 Nov. DOI: 10.1038/s41433-020-01256-5

24. Tunc U, Akbas YB, Yildirim Y, Kepez BK, Kirgiz A, Demirok A. Repeatability and reliability of measurements obtained by the combined Scheimpflug and Placido-disk tomography in different stages of keratoconus. Eye (Lond). 2020 Oct 26. doi: 10.1038/s41433-020-01238-7

25. B.Kepez Yildiz, Z.G.Erdem, G.Demir, Y.Yildirim, A.Agca, E.D.Aygit, N.Kandemir Besek, K.Fazil, A.Demirok. Effect of keratorefractive surgery on choroidal thickness in anisometropic amblyopia. Journal Français d'Ophtalmologie. https://doi.org/10.1016/j.jfo.2020.02.019

26. Yildirim Y, Cakmak S, Sucu ME et all. Comparative study of small-incision lenticule extraction (SMILE) and phakic IOL implantation in the correction of high myopia: Six-year results. J Cataract Refract Surg. 2020 Sep 7. doi: 10.1097/j.jcrs.0000000000000418

27. Sucu ME, Çakmak S, Yildirim Y, et all. Explantation of Phakic Intraocular Lenses: Causes and Outcomes. Int Ophth. DOI: 10.1007/s10792-020-01578-z.

28. Ocal MC, Yildirim Y, Ozveren M, Kepez Yildiz B, Demir G, Kandemir Besek N, Urdem U, Altan C. Validity of ocular trauma score in open globe injury patients from Turkey. J Fr Ophtalmol. 2020 Aug 15:S0181-5512(20)30294-1. doi: 10.1016/j.jfo.2019.11.036.

29. Cakmak S, Sucu ME, Yildirim Y. et all. Complications of accelerated corneal collagen cross-linking: review of 2025 eyes. Int Ophth. DOI :10.1007/s10792-020-01512-3.

30. Yesilkaya C, Arici M, Yıldırım Y et all. Short and Long Term Outcomes After Small-Incision Lenticule Extraction: A Tertiary Referral Centre Experience. J Fr Ophtalmol. 2020 Jun 30;S0181-5512(20)30258-8. doi: 10.1016/j.jfo.2019.11.020.

31. Atik BK, Yildirim Y, Sonmez O, Gumus G, Yildiz BK, Agca A. Phototherapeutic keratectomy in macular and granular dystrophy: Two-years results. Seminars in Ophthalmology https://doi.org/10.1080/08820538.2020.1778743

32. Yildiz BK, Atik BK, Yildirim Y, Agac A. Laser In Situ Keratomileusis (LASIK) in patients with superior steepening on corneal topography: Is it safe and predictable? May 2020 Int Ophth. DOI:10.1007/s10792-020-01420-6

33. Yildiz BK, Erdem ZG, Demir G, Yildirim Y, Agca A, Aygit ED, Besek NK, Fazil K, Demirok A. Effect of keratorefractive surgery on choroidal thickness in anisometropic amblyopia. JFO Article in Press

34. Ağca A, Tülü B, Yaşa D, Kepez Yıldız B, Sucu ME, Genç S, Fazıl K, Yıldırım Y. Accelerated corneal crosslinking in children with keratoconus: 5-year results and comparison of 2 protocols. J Cataract Refract Surg. 2020 Apr;46(4):517-523.

35. Kandemir Beşek N, Alagoz N, Gumus G, Kepez Yildiz B, Kirgiz A, Yildirim Y, Agca A. Long-term results of aphakia management by scleral fixation intraocular lens placement with knotless transscleral Z-suture method. Int Ophthalmol. 2020 Feb 18. doi: 10.1007/s10792-020-01311-w

36. Beşek NK, Tülü Aygün B, Yıldız BK, Er MO, Yıldırım Y, Genç S, Ağca A. Intraocular lens opacification following Triple-Descemet membrane endothelial keratoplasty surgery. J Fr Ophtalmol. doi: 10.1016/j.jfo.2019.06.023.

37. Kemer Atik B, Altan C, Agca A, Kirmaci A, Yildirim Y, Genc S, Taskapili M. The effect of intraocular lens tilt on visual outcomes in scleral fixated intraocular lens implantation. International Ophthalmology. 2019 Nov 23. Doi 10.1007/s10792-019-01233-2.

38. Aygun Tulu B, Agca A, Yildirim Y et all. Five years outcome of small lenticule extraction (SMILE) versus femtosecond laser-assisted in situ keratomileusis (FS-LASIK): A contralateral eye study. Journal of Cataract and Refractive Surgery. J Cataract Refract Surg. 2020 Mar;46(3):403-409. doi: 10.1097/j.jcrs.0000000000000067.

39. Kandemir Besek N, Erdogan G, Gumus G, Kepez Yildiz B, Aygit ED, Yildirim Y, Agca A. Comparative evaluation of re-use or replacement of dislocated 3-piece intraocular lenses with a scleral fixation technique. J Fr Ophtalmol. 2019 Nov 10.

40. Genc S, Sucu ME, Cakmak S, Yildirim Y, Yildiz BK, Agca A. Deep Anterior Lamellar Keratoplasty Techniques; Predescemetic Versus Big Bubble: Anterior Segment Optical Coherence Tomography Study. J Fr Ophtalmol. 2020 Jan 24. pii: S0181-5512(20)30002-4. doi: 10.1016/j.jfo.2019.08.004

41. Genc S, Tulu B, Esen F, Yildirim Y, Agca A. Descemet's membrane endothelial keratoplasty with split corneal grafts: the influence of tamponade material and endothelial storage time. Seminars in Ophthalmology. DOI:10.1080/08820538.2019.1648690

42. Demir G, Sucu E, Yildirim Y et all. The long term assessment of visual and refractive outcome of LASIK for hyperopia using the AMARIS 750S Excimer laser. J Fr Ophtalmol 2019 May 24. doi: 10.1016/j.jfo.2019.02.006

43. Demir G, Sucu ME, Yildirim Y, Kepez Yildiz B, Agca A, Alagoz N. The effects of complicated cataract surgery on iris structure and anterior chamber angle. J Fr Ophtalmol. 2019 Jun 11. pii: S0181-5512(19)30271-2. doi: 10.1016/j.jfo.2019.04.007

44. Kirgiz A, Eliacik M, Yildirim Y. Different accelerated corneal collagen cross-linking treatment modalities in progressive keratoconus. Eye Vis (Lond). 2019 Jun 3;6:16.

45. Ağca A, Tülü B, Yasa D, Yildirim Y, Yildiz BK, Demirok A. Long-term (five years) follow-up of small incision lenticule extraction in mild to moderate myopia. J Cataract Refract Surg. 2019 Jan 29. doi: 10.1016/j.jcrs.2018.11.010.

46. Ahmet S, Ağca A, Yaşa D, Koç AA, Toğaç M, Yıldırım Y, Yıldız BK, Demirok A. Simultaneous Transepithelial Topography-Guided Photorefractive Keratectomy and Accelerated Cross-Linking in Keratoconus: 2-Year Follow-Up. Biomed Res Int. 2018 Oct 15;2018:2945751.

47. Ağca A, Çakır İ, Tülü Aygün B, Yaşa D, Yıldırım Y, Yıldız BK, Demirok A. Visual and Refractive Outcomes of Small-Incision Lenticule Extraction in High Myopia: 5-Year Results. J Ophthalmol. 2018 Oct 21;2018:5893126.(SCI-EXP)

48. Agca A, Yildirim Y, Yildiz BK, Demirok A. Management of residual lenticule and irregular astigmatism after small incision lenticule extraction - Case Report. JCRS 2018 (SCI)

49. Yildiz BK, Urdem U, Goksel Ulas M, Yildirim Y, Agca A, Fazil K, Aygit ED, Taskapili M, Demirok A. Correction of myopic astigmatism by small incision lenticule extraction: does laterality matter? Lasers Med Sci. 2018 Aug 13. doi: 10.1007/s10103-018-2591-9 (SCI)

50. Yasa D, Urdem U, Agca A, Yildirim Y, Yildiz BK, Besek NK, Yigit U, and Demirok A. Early Results with a New Posterior Chamber Phakic Intraocular Lens in Patients with High Myopia. J Ophthalmol. 2018 Jun 19;2018:1329874. doi: 10.1155/2018/1329874 (SCI-EXP)

51. Agca A, Yildirim Y, Yildiz BK, Yasa D, Demircan A, Demirok A. Femtosecond lenticule extraction performed on a wrong meridian and effectively reversed by excimer laser ablation. Lasers Med Sci. 2017 Nov 13. doi: 10.1007/s10103-017-2380-x (SCI)

52. Kepez Yildiz B, Urvasizoglu S, Yildirim Y, Agca A, K Besek N, Fazil K, Eris E, Aygit ED, Taskapili M, Demirok A. Changes in Higher-Order Aberrations After Phototherapeutic Keratectomy for Subepithelial Corneal Infiltrates After Epidemic Keratoconjunctivitis. Cornea. 2017 Oct;36(10):1233-1236. (SCI)

53. Yildirim Y, Olcucu O, Karaagac Z, Agca A, Ozgurhan EB, Mutaf C, Demirok A. Comparison of accelerated corneal collagen crosslinking types for treating keratoconus. Curr Eye Res. 2017 Jul;42(7):971-975. (SCI)

54. Yildirim Y, Olcucu O, Alagoz N, Agca A, Karakucuk Y, Demirok A. Comparison of visual and refractive results after transepithelial and mechanical photorefractive keratectomy in myopia. Int Ophthalmol. 2017 Mar 27. doi: 10.1007/s10792-017-0501-y (SCI EXP)

55. Bozkurt E, Ozgurhan EB, Akcay Sezgin Bİ, Kurt T, Yildirim Y, Karaagac Z, Demirok A. Refractive, Topographic, and Aberrometric Results at 2-Year Follow-Up for Accelerated Corneal Cross-Link for Progressive Keratoconus. Journal of Ophthalmology 2017(6):1-6 • January 2017. 10.1155/2017/5714372 (SCI-EXP)

56. Ağca A, Demirok A, Yıldırım Y, Demircan A, Yaşa D, Yeşilkaya C, Perente İ, Taşkapılı M. Refractive lenticule extraction (ReLEx) through a small incision (SMILE) for correction of myopia and myopic astigmatism: current perspectives. Clin Ophthalmol. 2016 Oct 3;10:1905-1912

57. Yildirim Y, Olcucu O, Alagoz C et all. Comparison of Visual Results After Small Incision Lenticule Extraction and Photorefractive Keratectomy. J Refract Surg. 2016 Aug 1;32(9):604-10. doi: 10.3928/1081597X-20160602-02. (SCI)

58. Alagöz C, Pekel G, Alagöz N, Sayın N, Yüksel K, Yıldırım Y, Yazıcı AT. Choroidal thickness, photoreceptor thickness, and retinal vascular caliber alterations in dark adaptation. Curr Eye Res. 2016 May 9:1-6. (SCI-EXP)

59. Kurt T, Ozgurhan EB, Yildirim Y, Akcay BI, Cosar MG, Bozkurt E, Taskapili M. Accelerated (18 mW/cm(2)) Corneal Cross-Linking for Progressive Keratoconus: 18-Month Results. J Ocul Pharmacol Ther. 2016 May;32(4):186-91. (SCI-EXP)

60. Yildirim Y, Olcucu O, Agca A, Karakucuk Y, Alagoz N, Mutaf C, Demirok A, Kutlubay Z. Topographic and Biomechanical Evaluation of Corneas in Patients With Ocular Rosacea. Cornea. 2015 Mar;34(3):313-7. (SCI)

61. Yılmaz T, Karci AA, Yilmaz İ, Yılmaz A, Yıldırım Y, Sakalar YB. Long-Term Changes in Subfoveal Choroidal Thickness After Cataract Surgery. Med Sci Monit. 2016 May 9;22:1566-70. (SCI-EXP)

62. Alagöz N, Alagöz C, Yılmaz I, Yıldırım Y, Baz Ö, Altan Ç, Yazıcı AT, Taşkapılı M. Immediate Intraocular Pressure Changes Following Intravitreal Dexamethasone Implant. J Ocul Pharmacol Ther. 2015 Nov 5. (SCI-EXP)

63. Agca A, Cankaya KI, Yilmaz I, Yildirim Y, Yasa D, Olcucu O, Demircan A, Demirok A, Yilmaz OF. Fellow Eye Comparison of Nerve Fiber Regeneration After SMILE and Femtosecond Laser-assisted LASIK: A Confocal Microscopy Study. J Refract Surg. 2015 Sep 1;31(9):594-8. (SCI)

64. Ozgurhan EB, Akcay BI, Kurt T, Yildirim Y, Demirok A. Accelerated Corneal Collagen Cross-Linking in Thin Keratoconic Corneas. J Refract Surg. 2015 Jun;31(6):386-90. (SCI)

65. Nihat Sayin, Necip Kara, Yusuf Yildirim. A Comparison of Corneal Biomechanical Properties of Chronic Smokers and Non-Smokers Using the Ocular Response Analyzer. Adv Ophthalmol Vis Syst 2015, 2(1): 00027

66. Celik U, Alagoz N, Yildirim Y, Muller D, Marshall J, Demirok A, Yilmaz OF. New microwave thermokeratoplasty and accelerated crosslinking method for keratoconus: Results in 24 eyes during a 1-year follow-up. J Cataract Refract Surg. 2015 Feb;41(2):422-7. (SCI)

67. Yildirim Y, Olcucu O, Agca A, Alagoz C, Demircan A, Basci A, Demirok A, Kutlubay Z. Evaluation of corneal topography and biomechanical parameters after use of systemic isotretinoin in acne vulgaris. J Ophthalmol. 2014;2014:701361. (SCI-EXP)

68. Ozgurhan EB, Sezgin Akcay BI, Yildirim Y, Karatas G, Kurt T, Demirok A. Evaluation of corneal stromal demarcation line after two different protocols of accelerated corneal collagen cross-linking procedures using anterior segment optical coherence tomography and confocal microscopy. J Ophthalmol. 2014;2014:981893. (SCI-EXP)

69. Agca A, Ozgurhan EB, Yıldırım Y, Cankaya KI, Guleryuz NB, Alkın Z, Ozkaya A, Demirok A, Yılmaz OF. Corneal backscatter analysis by in vivo confocal microscopy: fellow eye comparison of small incision lenticule extraction and femtosecond laser assisted LASIK. J Ophthalmol. 2014 Mar;2014:265012. (SCI-EXP)

70. Sezgin Akçay Bİ, Ozgürhan EB, Bozkurt E, Kurt T, Yıldırım Y, Coşar MG, Yıldırım A, Umurhan Akkan JC, Demirok A. Evaluation of pachymetric measurements with Scheimpflug photography-based system and optical coherence tomography pachymetry at different stages of keratoconus. J Ophthalmol. 2014;2014:719205. (SCI-EXP)

71. Yaşa D, Ağca A, Alkın Z, Cankaya KI, Karaküçük Y, Coşar G, Yilmaz I, Yildirim Y, Demirok A. Two-Year Follow-Up of Artisan Iris-Supported Phakic Anterior Chamber Intraocular Lens for Correction of High Myopia. Semin Ophthalmol. 2014 Nov 20:1-5. (SCI-EXP)

72. Celik U, Alagoz N, Yildirim Y, Agca A, Marshall J, Muller D, Demirok A, Yilmaz OF. New method of microwave thermokeratoplasty to correct myopia in 33 eyes: one-year results. J Cataract Refract Surg. 2013 Feb;39(2):225-33. (SCI)

73. Yazıcı AT, Pekel G, Bozkurt E, Yıldırım Y, Pekel E, Demirok A, Yılmaz OF. Measurements of anterior segment parameters using three different non-contact optical devices in keratoconus patients. Int J Ophthalmol. 2013 Aug 18;6(4):521-5. (SCI-EXP)

74. Kara N, Yildirim Y, Tekirdag AI, Yildirim GY, Bakir VL, Gulac B, Yilmaz G, Fendal A. Effect of body posture on intraocular pressure and ocular perfusion pressure in nonglaucomatous pregnant women. Curr Eye Res. 2013 Jan;38(1):80-5. (SCI-EXP)

75. Kara N, Yildirim Y, Univar T, Kontbay T. Corneal biomechanical properties in children with diabetes mellitus. Eur J Ophthalmol. 2013 Jan 21;23(1):27-32. (SCI-EXP)

76. Yazici AT, Bozkurt E, Kara N, Yildirim Y, Demirok A, Yilmaz OF. Long-term results of phacoemulsification combined with primary posterior curvilinear capsulorhexis in adults. Middle East Afr J Ophthalmol. 2012 Jan;19(1):115-9.

77. Kara N, Yildirim Y, Demircan A, Cankaya I, Kutlubay Z, Engin B, Serdaroglu S. Topographic and biomechanical evaluation of cornea in patients with ichthyosis vulgaris. Cont Lens Anterior Eye. 2012 Oct;35(5):208-12. (SCI-EXP)

78. Kara N, Altinkaynak H, Goker Y, Yuksel K, Yildirim Y. Evaluation of corneal morphologic and functional parameters after use of topical cyclosporine-a 0.05% in dry eye. J Ocul Pharmacol Ther. 2012 Dec;28(6):593-7. (SCI-EXP)

79. Celik HU, Alagöz N, Yildirim Y, Agca A, Marshall J, Demirok A, Yilmaz OF. Accelerated corneal crosslinking concurrent with laser in situ keratomileusis. J Cataract Refract Surg. 2012 Aug;38(8):1424-31. (SCI-EXP)

80. Kara N, Yazici AT, Bozkurt E, Yildirim Y, Demirok A, Yilmaz OF. Which procedure has more effect on macular thickness: primary posterior continuous capsulorhexis (PPCC) combined with phacoemulsification or Nd:YAG laser capsulotomy? Int Ophthalmol. 2011 Aug;31(4):303-7.

81. Bozkurt E, Yazici AT, Yildirim Y, Alagöz C, Göker H, Yilmaz OF. Long-term follow-up of first-generation posterior chamber phakic intraocular lens. J Cataract Refract Surg. 2010 Sep;36(9):1602-4. (SCI)

B. Papers Presented at International Scientific Meetings and Published in Proceedings

1. Kepez Yildiz Burçin, Bektaşoğlu Damla, Sönmez Orçun, Yildirim Yusuf, Ağca Alper (2019). Comparison of Posterior Corneal Changes After Femtosecond Assisted Laser In Situ Keratomileusis And Small Incision Lenticule Extraction. 37th Congress Of The European Society Of Cataract And Refractive Surgeons (ESCRS) (Abstract/Oral Presentation) (Publication No: 5371138)

2. Sucu Mehmet Emin, Yildirim Yusuf, Kepez Yildiz Burçin, Ağca Alper (2019). Accelerated Corneal Crosslinking In Paediatric Keratoconus: Long Term Results And Comparison Of Two Protocols. 37th Congress Of The European Society Of Cataract And Refractive Surgeons (ESCRS) (Abstract/Oral Presentation) (Publication No: 5415617)

3. Kepez Yildiz Burçin, Gürez Ceren, Yildirim Yusuf, Ağca Alper (2019). Assessment Of Posterior Corneal Changes After Accelerated Corneal Crosslinking For Keratoconus. 37th Congress Of The European Society Of Cataract And Refractive Surgeons (ESCRS) (Abstract/Poster) (Publication No: 5371029)

4. Demirok Ahmet, Yildirim Yusuf, Sucu Mehmet Emin, Kepez Yildiz Burçin, Ağca Alper (2018). Small Incision Lenticule Extraction (SMILE) For The Correction Of Moderate To High Astigmatism In Myopia: Is It Really Effective?. 36th Congress Of The European Society Of Cataract And Refractive Surgeons (ESCRS) (Abstract/Poster) (Publication No: 5415480)

5. Yildirim Yusuf, Sucu Mehmet Emin, Kepez Yildiz Burçin, Ağca Alper, Genç Selim, Taşkapili Muhittin (2018). Corneal Wavefront Guided Phototherapeutic Keratectomy For Subepithelial Corneal Infiltrates After Epidemic Keratoconjunctivitis. 36th Congress Of The European Society Of Cataract And Refractive Surgeons (ESCRS) (Abstract/Poster) (Publication No: 4419399)

6. Kepez Yildiz Burçin, Yildirim Yusuf, Ağca Alper, Demirok Ahmet (2018). Femtolasik For Correction Of Oblique And With The Rule Astigmatism: Comparison Of Postoperative Visual Quality. 36th Congress Of The European Society Of Cataract Refractive Surgeons (ESCRS) (Abstract/Poster) (Publication No: 4419391)

7. Taşkapili Muhittin, Yildirim Yusuf, Kepez Yildiz Burçin, Ağca Alper (2018). Accelerated Corneal Crosslinking In Progressive Keratoconus, Long Term Results. 36th Congress Of The European Society Of Cataract And Refractive Surgeons (ESCRS) (Abstract/Poster) (Publication No: 4419386)

8. Kepez Yildiz Burçin, Erdem Zeynep Gizem, Demir Gökhan, Yildirim Yusuf, Ağca Alper, Aygit Ebru Demet, Kandemir Beşek Nilay, Fazil Korhan, Demirok Ahmet (2018). The Effect Of Keratorefractive Surgery On Choroidal Thickness In Anisometropic Amblyopia. American Society Of Cataract And Refractive Surgery (ASCRS) 2018 (Abstract/Poster) (Publication No: 4419381)

9. Taşkapili Muhittin, Yildirim Yusuf, Ağca Alper, Kepez Yildiz Burçin, Ölçücü Onur, Genç Selim, Arici Murat (2017). Accelerated Corneal Crosslinking In Keratoconus Patients With Down Syndrome. 35th Congress Of The European Society Of Cataract And Refractive Surgeons (ESCRS) (Abstract/Poster) (Publication No: 5415297)

10. Yildirim Yusuf, Ağca Alper, Kepez Yildiz Burçin, Kandemir Beşek Nilay, Ölçücü Onur, Sucu Mehmet Emin, Demirok Ahmet (2017). Intraoperative And Postoperative Complications Of Small Incision Lenticule Extraction. 35th Congress Of The European Society Of Cataract And Refractive Surgeons (ESCRS) (Abstract/Poster) (Publication No: 4419361)

11. Demirok Ahmet, Ağca Alper, Yildirim Yusuf, Kepez Yildiz Burçin, Genç Selim, Kandemir Beşek Nilay, Kutlutürk Gizem (2017). Postoperative Complications Of Accelerated Corneal Collagen Crosslinking In Progressive Keratoconus. 35th Congress Of The European Society Of Cataract And Refractive Surgeons (ESCRS) (Abstract/Poster) (Publication No: 4419367)

12. Perente İrfan, Ağca Alper, Yildirim Yusuf, Kepez Yildiz Burçin, Demirok Ahmet (2017). Transepithelial Corneal Collagen Crosslinking For Progressive Keratoconus. American Society Of Cataract And Refractive Surgery (ASCRS) 2017 (Abstract/Poster) (Publication No: 4419338)

13. Ağca Alper, Yildirim Yusuf, Kepez Yildiz Burçin, Ölçücü Onur, Genç Selim, Demirok Ahmet (2017). Pulsed Light Accelerated Corneal Collagen CXL For Progressive Keratoconus: 2 Year Follow Up. American Society Of Cataract And Refractive Surgery (ASCRS) 2017 (Abstract/Poster) (Publication No: 4419336)

14. Alagoz Cengiz, Alagoz Neşe, Baz Okkes, Yildirim Yusuf, Yuksel Kemal (2015). Intravitreal Gas Injection In The Treatment Of Macular Hole. 15th Euroretina Congress (/) (Publication No: 2792436)

15. Demirok Ahmet, Yildirim Yusuf, Agca Alper, Olcucu Onur, İrfan Perente (2015). Small Incision Lenticule Extraction (SMILE) In Low Myopia: 18 Months Results. XXXIII ESCRS Congress (/) (Publication No: 2744068)

16. Engin Bilge Ozgurhan, Kurt Tuğba, Yildirim Yusuf, Günaydin Zehra, Bozkurt Ercument (2015). Accelerated (18 mW/cm2) Corneal Cross Linking For Progressive Keratoconus: 18 Month Outcomes. XXXIII Congress Of The ESCRS (/) (Publication No: 2744197)

17. Bozkurt Ercument, Yildirim Yusuf, Ozgurhan Engin Bilge, Olcucu Onur, Gunes Hasan (2015). Descemet's Membrane Endothelial Keratoplasty In Pseudophakic Bullous Keratopathy Eyes. XXXIII Congress Of The ESCRS (/) (Publication No: 2782265)

18. Taskapili Muhittin, Yildirim Yusuf, Olcucu Onur, Ozgurhan Engin Bilge, Demirok Ahmet (2015). Transepithelial Corneal Collagen Cross Linking Treatment Results In Patients With Thin Cornea. XXXIII Congress Of The ESCRS (/) (Publication No: 2744159)

19. Basarir Berna, Satana Banu, Altan Cigdem, Yildirim Yusuf, Miray Faiz Turan, Ozçelik Ferah (2015). Endothelial Cell Layer In Patients With Unilateral Pseudoexfoliation Syndrome. 6th World Glaucoma Congress 2015 (/) (Publication No: 2743971)

20. Ozgurhan Engin Bilge, Sezgin Akçay Betül İlkay, Kara Necip, Kurt Tuğba, Yildirim Yusuf, Demirok Ahmet (2015). Evaluation Of Corneal Stromal Demarcation Line After Accelerated Corneal CXL By Using Optical Coherence Tomography And Confocal Microscopy. ASCRS 2015 (/) (Publication No: 2782501)

21. Ölçücü Onur, Yildirim Yusuf, Ağca Alper, Ozgurhan Engin Bilge, Bozkurt Ercument, Cengiz Alagoz, Demirok Ahmet (2015). Comparison Of Visual Acuity And High Order Aberrations After Transepithelial Photorefractive Keratectomy (T-PRK) And Mechanical Photorefractive Keratectomy (M-PRK). 19th ESCRS Winter Meeting (/) (Publication No: 2743647)

22. Agca Alper, Olcucu Onur, Yildirim Yusuf, Demirok Ahmet (2015). Experience With Diffractive Multifocal IOL Implanted Bilaterally For Improvement In Refraction As Well As Visual Acuity Of Patients Who Have Undergone Cataract Surgery. 19th ESCRS Winter Meeting (/) (Publication No: 2743684)

C. National/International Books Written Or Book Chapters

C1. Nelson Pediatrics, Chapter name: (Chapter 617 - Disorders of the Lacrimal System, Chapter 618 - Disorders of the Conjunctiva, Chapter 619 - Disorders of the Cornea) (2015), Yıldırım Yusuf, Nobel Tıp Kitabevleri TC. LTD. STI., Editor: Assoc. Prof. Dr. Teoman Akçay, Edition number: 19, ISBN:978-1-4377-0755-7, Turkish (Book Translation)

C2. Corneal Topography, Chapter name: (Topography-guided contact lens fitting) (2014). Yılmaz Basak, Yıldırım Yusuf, Atlas Kitapçılık TIC. LTD. STI., Editor: Prof. Dr. Ahmet Demirok, Specialist Dr. Alper Ağca, Edition number: 2, Page count: 271, ISBN:978-605-5265-15-1, Turkish (Book Translation),

C3. Corneal Topography, Chapter name: (Topographic evaluation before refractive surgery

) (2014). Ağca Alper, Yıldırım Yusuf, Atlas Kitapçılık TIC. LTD. STI., Editor: Prof. Dr. Ahmet Demirok, Specialist Dr. Alper Ağca, Edition number: 2, Page count: 271, ISBN:978-605-5265-15-1, Turkish (Book Translation),

D-Articles Published In National Peer-Reviewed Journals

1. Cakir GY, Cakir I, Yildiz BK, Yildirim Y. Changes in Corneal Dynamics and Effective Optical Zone After Transepithelial Photorefractive Keratectomy for Myopia. Beyoglu Eye J. 2024 Jun 1;9(2):69-75

2. Savur F, Yildirim Y. Delayed Primary Reposition in a Patient with Traumatic Globe Avulsion: A Case Report. Beyoglu Eye J. 2023 Mar 1;8(1):64-68. doi: 10.14744/bej.2022.27247.

3. Ceylan A, Onal I, Mergen B, Yildirim Y. Central Corneal Thickness Measurements with Different Imaging Devices: Ultrasound Pachymetry, Noncontact Specular Microscopy, and Tono-Pachymetry. Beyoglu Eye J. 2022 Feb 18;7(1):54-58. doi: 10.14744/bej.2022.82787.

4. Nilay Kandemir Beşek, Ahmet Kırgız, Gülay Yalçınkaya, Burçin Kepez Yıldız, Fevziye Öndeş Yılmaz, Yusuf Yıldırım. Comparison of Accelerated Crosslinking Results Performed with Hydroxypropyl Methylcellulose-Based or Dextran-Based Riboflavin Solutions. Glo-Kat 2021; 16: 182-187. DOI: 10.37844/glauc.cat.2021.16.31

5. Nilay Kandemir Beşek, Gülay Yalçınkaya, Ahmet Kırgız, Fevziye Öndeş Yılmaz, Burçin Kepez Yıldız, Yusuf Yıldırım, Ahmet Demirok. The Effect of Cone Localization on Higher Order Aberrations After Corneal Crosslinking for Keratoconus. doi: 10.14744/bej.2021.07088 Pages 206-211

6. Nilay KANDEMİR BEŞEK, Ahmet KIRGIZ, Semih ÇAKMAK, Yusuf YILDIRIM. The Effect of Combined Cataract Surgery on Graft Survival in Descemet's Membrane Endothelial Keratoplasty: A Comparative Clinical Study. Turkiye Klinikleri J Ophthalmol. 2021;30(3):155-62

7. Yıldırım Y, Akbaş YB. Presbyopic laser surgeries. Taşındı E, editor. Current Topics In Refractive Surgery. 1st Edition. Ankara: Türkiye Klinikleri; 2021. p.81-8.

8. Besek NK, Kirgiz A, Cakmak S, Yıldırım Y. The Effect of Combined Cataract Surgery on Graft Survival in Descemet's Membrane Endothelial Keratoplasty; A Comparative Study. Türkiye Klinikleri Ophthalmology. Doi:10.5336/ophthal.2020-78329

9. Gümüş G, Ökmen H, Yildiz BK, Yıldırım Y, Agca A, Genç S, Beşek NK, Kırgız A. Clinical and Demographic Characteristics of Pediatric Keratoplasties. MN Oftalmoloji. 2021;28(4)214-219

10. Gülşah Gümüş, Ahmet Kırgız, Yusuf Yıldırım, Nilay Kandemir Beşek, Selim Genç, Burçin Kepez Yıldız, Muhittin Taşkapılı. Prognostic Factors Affecting Graft Survival in Patients Undergoing Penetrating Keratoplasty for Infectious Keratitis. Turk J Ophthalmol 2020;50:324-331. DOI: 10.4274/tjo.galenos.2020.35305

11. Burçin KEPEZ YILDIZ, İhsan ÇAKIR, Nilay KANDEMİR BEŞEK, Yusuf YILDIRIM, Gökhan DEMİR, Ceren GUREZ, Mevlüt Celal ÖCAL, Alper AĞCA. Pediatric Open Globe Injuries: Clinical Characteristics and Long-Term Results. Turkiye Klinikleri J Ophthalmol. 2020;29(3):181-6. DOI: 10.5336/ophthal.2019-70026

12. Beril Tülü Aygün, Burcin Kepez Yildiz, Deniz Öğütmen Koç, Yusuf Yıldırım. Xerophthalmia: From eye to fatal intestinal disease. Beyoglu Eye Journal. doi: 10.14744/bej.2020.93063 Pages 149-152

13. Yildiz BK, Sucu ME, Yildirim Y, Agca A, Besek NK, Genc S, Demirok A. Evaluation of Our Refractive and Visual Outcomes After Cataract Surgery and Intraocular Lens Implantation in Patients Who Had Previously Undergone Refractive Surgery. Glo-Kat 2019; 14: 134-139

14. Atik BK, Tulu B, Yildiz BK, Yildirim Y, Agca A, Besek NK, Genc S, Kirgiz A, Taskapili M. Clinical Characteristics and Progression Analysis of the Fellow Eyes of Patients Undergoing Keratoplasty for Keratoconus. MN Oftalmoloji. Article In Press

15. Kadir İlker Çankaya, Dilek Yaşa, Alper Ağca, Yusuf Yıldırım, Ahmet Demirok.

Femtosecond Laser Assisted LASIK vs SMILE: Refractive Results, Contrast Sensitivity and Corneal Higher Order Aberrations. doi: 10.5222/iksstd.2019.29484 Pages 86-92

16. Kepez Yıldız B, Yıldırım Y, Agca A et al. Evaluation of Corneal Topographic Features in Tilted Disc Syndrome and Comparison with Healthy Eyes. MN Oftalmoloji Volume 26 Issue 1 Year 2019 Pages 37-42

17. Dilek Yaşa, Cem Kesim, Alper Ağca, Ceren Yeşilkaya, Yusuf Yıldırım, Burçin Kepez Yıldız, Ahmet Demirok. Visual acuity after small incision lenticule extraction in the early postoperative period: Low myopia versus moderate to high myopia. DOI: 10.14744/scie.2018.69875 South. Clin. Ist. Euras.

18. Yıldız BK, Ulas MG, Aygit ED, Gurez C, Besek NK, Yildirim Y, Agca A, Fazil K, Gokyigit B, Demirok A. The Change in Deviation Measurements After Refractive Surgery for Partially Accommodative Strabismus: Early Postoperative Evaluation. doi: 10.14744/bej.2018.57060 Pages 58-62

19. İhsan Çakır, Alper Ağca, Dilek Yaşa, Yusuf Yıldırım, Burçin Kepez Yıldız, Mustafa Gürkan Erdoğan, Ahmet Demirok. Refractive results and endothelial safety of a foldable iris claw phakic intraocular lens. Haydarpaşa Tıp Dergisi Klinik Araştırma doi:10.14744/hnhj.2018.58672

20. Alper Agca, Yusuf Yildirim, Burcin Kepez Yildiz, Onur Olcucu, Dilek Yasa, Ali Demircan, Ahmet Demirok. Duration of the operation has no effect on early visual acuity after small incision lenticule extraction surgery. doi: 10.14744/bej.36855 2016; 1-1 | Pages 15-17

21. Yusuf Yıldırım, Cengiz Alagöz, Abdülvahit Demir, Onur Ölçücü, Mehmet Özveren, Alper Ağca, Engin Bilge Özgürhan, Ahmet Demirok. Long term results of small incision lenticule extraction in high myopia. Turk J Ophthalmol 2016;46:200-204

22. Can Ozturker, Pelin Kaynak, Gamze Ozturk Karabulut, Korhan Fazil, Yusuf Yildirim, Osman Bulut Ocak. Management Of Open Globe Injuries And Concern About Sympathetic Ophthalmia: A Case Report. doi: 10.14744/bej.2018.58066

23. Cengiz Alagöz, Yusuf Yıldırım, Murat Kocamaz, Ökkeş Baz, Uğur Çiçek, Burcu Çelik, Halil İbrahim Demirkale, Ahmet Taylan Yazıcı, Muhittin Taşkapılı. The efficacy of intravitreal bevacizumab in vitreous hemorrhage of diabetic subjects. Turk J Ophthalmol 2016;46:221-225

24. Yusuf Yıldırım, Onur Ölçücü, Abdurrahman Başcı, Alper Ağca, Engin Bilge Özgürhan, Cengiz Alagöz, Ali Demircan, Ahmet Demirok. Comparison of Changes in Corneal Biomechanical Properties after Photorefractive Keratectomy and Small Incision Lenticule Extraction. Turk J Ophthalmol 2016; 46: 47-51 DOI:10.4274/tjo.49260

25. Neşe Alagöz, Cengiz Alagöz, Yusuf Yıldırım, Ceren Yeşilkaya, Çiğdem Altan, Ercüment Bozkurt, Banu Şatana, Berna Başarır, Muhittin Taşkapılı. The Effect of Adjuvant Intracameral Triamcinolone Acetonide on the Surgical Results of Trabeculectomy with Mitomycin C. Turk J Ophthalmol 2016; 46: 169-174 DOI:10.4274/tjo.88785

26. Yusuf Yıldırım, Cengiz Alagöz, Ruveyde Garip, Onur Ölçücü, Alper Ağca, Engin Bilge Özgürhan, Ahmet Demirok. Phototherapeutic Keratectomy in the Treatment of Corneal Opacities Due to Viral Keratoconjunctivitis. Türkiye Klinikleri Oftalmoloji Dergisi. Year:2016 Volume:25 Issue:2 Pages:88-93. DOI: 10.5336/ophthal.2015-47554

27. Cengiz ALAGÖZ, Neşe ALAGÖZ, Hasan GÜNEŞ, Uğur ÇELİK, Yusuf YILDIRIM, Ahmet Taylan YAZICI, Ahmet DEMİROK. OCT Findings and Surgical Outcomes of Cases Undergoing 23-Gauge Pars Plana Vitrectomy for Diabetic Vitreomacular Traction. Ret-Vit 2015;23:51-56

28. Yusuf Yıldırım, Uğur Çelik, Alper Ağca. Mechanical microkeratomes. Türkiye Klinikleri Oftalmoloji Dergisi. Year:2014 Volume:7 Issue:1 Pages:29-34

29. Kaynak P, Karabulut GÖ, Ozturker C, Yıldırım Y, Alagoz N, Akar S, Gokyigit B, Demirok A. Treatment of upper eyelid retraction due to thyroid ophthalmopathy with subconjunctival Botulinum Toxin-A injection. MN OFTALMOLOJİ 2013 20:4 272-278

30. Necip Kara, Yusuf Yıldırım, Kemal Yüksel, Çiğdem Altan, Engin B. Özgürhan, Ahmet T. Yazıcı, Ahmet Demirok. Transscleral Diode Laser Cyclophotocoagulation for Uncontrolled Intraocular Pressure Secondary to Emulsification of Silicone Oil. Turk J Ophthalmol 2013; 43: 178-182

31. Yusuf Yıldırım, Necip Kara, Tolga Yılmaz, Ali Demircan, İlker Çankaya, Zekai Kutlubay. Comparison of Topographic and Biomechanical Properties of the Cornea in Patients with Atopic Dermatitis and Healthy Individuals. Turk J Ophthalmol 2013; 43: 140-144.

32. Ahmet Taylan Yazıcı, Ercument Bozkurt, Yusuf Yıldırım, Necip Kara, Ahmet Demirok, Ömer Faruk Yılmaz. The effect of Nd:YAG laser posterior capsulotomy on visual acuity, intraocular pressure, and macular thickness. Glokom Katarakt Dergisi 2010 5-3 pp 151-154

33. Ahmet Taylan Yazıcı, Necip Kara, Ercument Bozkurt, Yusuf Yıldırım, Hüseyin Dündar, Vedat Kaya, Ahmet Demirok, Ömer Faruk Yılmaz. Comparison of the efficacy and safety of foldable and non-foldable iris-fixated phakic intraocular lenses used in the treatment of myopia. Glokom Katarakt Dergisi 2010 5-1 pp 25-29

E. Papers Presented at National Scientific Meetings and Published in Proceedings

E1. Bozkurt E, Yıldırım Y, Özgürhan EB, Güneş H, Taşkapılı M. Combined cataract surgery and

Descemet's membrane endothelial keratoplasty (DMEK) in patients with Fuchs endothelial dystrophy. 2015 TOA 49th National Congress - Poster

E2. Yıldırım Y, Bozkurt E, Güneş H, Ölçücü O, Özgürhan EB, Taşkapılı M.

Our results of Descemet's membrane endothelial keratoplasty (DMEK) in eyes with pseudophakic bullous keratopathy. 2015 TOA 49th National Congress - Poster

E3. Kurt T, Özgürhan EB, Coşar MG, Yıldırım Y. Comparison of

central anterior chamber depth and anterior chamber volume in keratoconic and normal eyes. 2015 TOA 49th National Congress - Poster

E4. Güneş H, Bozkurt E, Yıldırım Y, Özgürhan EB, Göker YŞ, Demir G, Öcal MC. Our results of Descemet's membrane endothelial keratoplasty. 2015 TOA 49th National Congress - Oral Presentation

E5. Ölçücü O, Yıldırım Y, Başçı A, Ağca A, Demirok A. Our long-term results of small incision lenticule extraction (SMILE) in the treatment of low and moderate myopia. 2015 TOA 49th National Congress - Poster

E6. Bozkurt E, Yıldırım Y, Özgürhan EB, Alagöz C, Karataş G. Comparison of deep anterior lamellar keratoplasty (DALK) techniques in the treatment of keratoconus. 2015 TOA 49th National Congress - Poster

E7. Yıldırım Y, Kocamaz M, Ağca A, Ölçücü O, Alagöz C, Demirok A. The effect of interface irrigation during small incision lenticule extraction (SMILE) for myopia on early visual outcomes. 2015 TOA 49th National Congress - Poster

E8. Alagöz N, Alagöz C, Yıldırım Y, Yeşilkaya C, Altan Ç, Bozkurt E, Şatana B, Taşkapılı M. Surgical results of trabeculectomy in cases with and without intraoperative intracameral triamcinolone acetonide. 2015 TOA 49th National Congress - Poster

E9. Ölçücü O, Yıldırım Y, Ağca A, Kocamaz M, Demirok A. Evaluation of

complications of small incision lenticule extraction (SMILE). 2015 TOA 49th National Congress - Poster

E10. Bozkurt E, Yıldırım Y, Özgürhan EB, Ölçücü O, Karataş Durusoy G, Demirok A. Deep anterior lamellar keratoplasty (DALK) in the treatment of keratoconus: 1-year results. 2014 TOA 48th National Congress - Poster

E11. Yıldırım Y, Başçı A, Ağca A, Alagöz C, Alagöz N, Yılmaz İ, Ölçücü O, Karataş Durusoy G, Demirok A. Our results of small incision lenticule extraction (SMILE) in the treatment of low and moderate myopia. 2014 TOA 48th National Congress - Poster

E12. Demir A, Yıldırım Y, Güneş H, Özpınar Y, Mutaf Ç, Faiz Turan M, Goker YŞ, Demirok A. Evaluation of corneal biomechanical properties in patients undergoing FemtoLASIK and their relationship with ablation amount. 2014 TOA 48th National Congress - Poster

E13. Ağca A, Yıldırım Y, Karataş Durusoy G, Ölçücü O, Yılmaz İ, Bozkurt E, Demirok A, Yılmaz ÖF. Our results of simultaneous photorefractive keratectomy and corneal collagen crosslinking in mild keratoconus cases. 2014 TOA 48th National Congress - Poster

E14. Mutaf Ç, Yıldırım Y, Bozkurt E, Özgürhan EB, Demirok A. Our results of deep anterior lamellar keratoplasty in the pediatric age group. 2014 TOA 48th National Congress - Poster

E15. Mutaf Ç, Yıldırım Y, Ağca A, Karaküçük Y, Özgürhan EB, Bozkurt E, Karataş Durusoy G, Ölçücü O, Demirok A. Comparison of long-term results of mechanical and transepithelial photorefractive keratectomy in low and moderate myopia. 2014 TOA 48th National Congress - Poster

E16. Altun M, Özpınar Y, Yıldırım Y, Ağca A, Demirok A. The effect of intracorneal ring implantation on corneal aberrations. 2014 TOA 48th National Congress - Poster

E17. Garip R, Yıldırım Y, Özveren M, Çankaya Kİ, Bozkurt E, Özgürhan EB, Ağca A, Demirok A. Methods in the surgical treatment of aphakia (scleral fixation / anterior iris claw lens / posterior iris claw lens). 2014 TOA 48th National Congress - Poster

E18. Özgürhan EB, Bozkurt E, Yıldırım Y, Kurt T, Demirok A. 2-Year Results of Accelerated (30 mW/cm2) Corneal Collagen Cross-Linking Treatment in Keratoconus Patients. 2014 TOA 48th National Congress - Oral Presentation

E19. Ağca A, Ölçücü O, Yıldırım Y, Yılmaz I, Durusoy GK, Bozkurt E, Demirok A, Yılmaz OF. The effect of intraoperative difficulty and surgical duration on outcomes in small incision lenticule extraction (SMILE) surgery. 2014 TOA 48th National Congress - Poster

E20. Özgürhan EB, Yıldırım Y, Kurt T, Bozkurt E, Demirok A. Long-term results of pterygium surgery with limbal conjunctival autograft in multirecurrent pterygiums. 2014 TOA 48th National Congress - Poster

E21. Demircan A, Altan Ç, Ağca A, Yıldırım Y, Çankaya Kİ, Yasa D, Demirok A. Measurement of subfoveal choroidal thickness with EDI-OCT in patients with nanophthalmos. 2013 TOA 47th National Congress - Poster

E22. Yıldırım Y, Agca A, Özgürhan EB, Çosar MG, Göker YŞ, Alagöz C, Demircan A, Demirok A. The effect of preoperative keratometry values on collagen crosslinking treatment applied in keratoconus. 2013 TOA 47th National Congress - Poster

E23. Bozkurt E, Yıldırım Y, Özgürhan EB, Karaküçük Y, Agca A, Çoşar MG, Demirok A. The effect of iris-fixated phakic intraocular lens implantation on anterior chamber angle. 2013 TOA 47th National Congress - Poster

E24. Ağca A, Çankaya Kİ, Yıldırım Y, Özgürhan EB, Bozkurt E, Çelik HU, Demırcan A, Güleryüz NB, Günes H, Demırok A. Comparison of FS-LASIK and SMILE methods in terms of visual acuity, contrast sensitivity, and corneal higher order aberrations in the correction of myopia and astigmatism. 2013 TOA 47th National Congress - Poster

E25. Günaydin ZK, Yıldırım Y, Bozkurt E, Özgürhan EB, Ağca A, Çelik HU, Yazici AT, Koç A, Güleryüz NB, Demirok A. Long-term results of posterior capsulorhexis performed during cataract surgery in adult patients. 2013 TOA 47th National Congress - Poster

E26. Özgürhan EB, Çelik HU, Güleryüz NB, Yıldırım Y, Bozkurt E, Ağca A, Kurt T, Demirok A. 1-Year results of accelerated corneal collagen crosslinking treatment in keratoconus patients. 2013 TOA 47th National Congress - Oral Presentation

E27. Karaküçük Y, Bozkurt E, Yıldırım Y, Özgürhan EB, Ağca A, Demirok A. Evaluation of corneal collagen crosslinking treatment in patients with bullous keratopathy. 2013 TOA 47th National Congress - Poster

E28. Özgürhan EB, Bozkurt E, Yıldırım Y, Çelik HU, Ağca A, Güleryüz NB, Kurt T, Demirok A. Evaluation of the corneal demarcation line with Visante OCT after accelerated corneal collagen crosslinking treatment in keratoconus patients. 2013 TOA 47th National Congress - Poster

E29. Yıldırım Y, Ağca A, Özgürhan EB, Bozkurt E, Alagöz C, Çosar MG, Goker YŞ, Demirok A. Small incision lenticule extraction in high myopia. 2013 TOA 47th National Congress - Oral Presentation

E30. Ölçücü O, Yıldırım Y, Özgürhan EB, Ağca A, Coşar MG,

Bozkurt E, Demirok A. Corneal collagen crosslinking treatment in keratoconus cases accompanied by

allergic keratoconjunctivitis. 2013 TOA 47th National Congress - Oral Presentation

E31. Kara N, Yıldırım Y. Evaluation of refractive status and ocular parameters in cases with growth retardation. 2012 TOA 46th National Congress - Poster

E32. Kara N, Yıldırım Y. The effect of

nocturnal sleep deprivation on intraocular pressure and ocular perfusion pressure. 2012 TOA 46th National Congress - Poster

E33. Azman FA, Altan Ç, Şatana B, Başarır B, Yıldırım Y, Alp D, Demirok A. Evaluation of the Dorzolamide/Timolol combination in the treatment of open-angle glaucoma with diurnal measurements. 2012 TOA 46th National Congress - Poster

E34. Yıldırım Y, Kara N, Gülaç B, Tekirdag Aİ. The effect of

preeclampsia on intraocular pressure and postural intraocular pressure change in pregnant women. 2012 TOA 46th National Congress - Poster

E35. Yıldırım Y, Kara N, Gülaç B, Tekirdag Aİ. The effect of

gestational diabetes on the biomechanical properties of the cornea. 2012 TOA 46th National Congress - Poster

E36. Çelik HU, Bozkurt E, Alagöz N, Azman FA, Yıldırım Y, Demirok A, Yılmaz ÖF. Correction of near vision with ACUFOCUS

intracorneal inlay in pseudophakic eyes. 2011 TOA 45th National Congress - Poster

E37. Çelik HU, Bozkurt E, Yıldırım Y, Alagöz N, Demirok A, Yılmaz ÖF. Our results of myopia treatment with thermokeratoplasty (KERAFLEX). 2011 TOA 45th National Congress - Oral Presentation

E38. Yıldırım Y, Çelik HU, Bozkurt E, Alagöz N, Yazıcı AT, Demirok A, Yılmaz ÖF. Simultaneous Keraflex - corneal collagen crosslinking treatment in keratoconus patients. 2011 TOA 45th National Congress - Poster

E39. Bozkurt E, Yıldırım Y, Çelik HU, Azman FA, Demirok A, Yılmaz ÖF. The effect of photorefractive keratectomy and transepithelial photorefractive keratectomy on tear film. 2011 TOA 45th National Congress - Poster

E40. Azman FA, Gökyiğit B, Akar S, Özgürhan EB, Çelik HU, Yıldırım Y, Demirok A. Application and efficacy of Botulinum Toxin A in Duane Type-1 cases with esotropia under age 3. 2011 TOA 45th National Congress - Poster

E41. Güleryüz NB, Çelik HU, Yüksel K, Çankaya Kİ, Azman FA, Yıldırım Y, Bozkurt E, Yazıcı AT, Çakır M, Demirok A. Use of intravitreal bevacizumab before 23-gauge pars plana vitrectomy in cases of proliferative diabetic retinopathy. 2011 TOA 45th National Congress - Oral Presentation

E42. Bozkurt E, Yıldırım Y, Özkan A, Yazıcı AT, Çelik HU, Azman FA, Gökyigit B. 1-year results of keratoconus patients treated with corneal collagen crosslinking. 2010 TOA 44th National Congress - Poster

E43. Çelik HU, Bozkurt E, Yazıcı AT, Yıldırım Y, Alagöz N,

Kaya V, Demirok A, Yılmaz ÖF. Short-term results of our patients undergoing Photorefractive Keratectomy (PRK)

. 2010 TOA 44th National Congress - Poster

E44. Yıldırım Y, Bozkurt E, Yazıcı AT, Azman FA, Altan Ç, Kaya V, Kevser MA, Demirok A, Yılmaz ÖF. The relationship between the distance from the anterior surface of the phakic iris claw intraocular lens to the endothelium and endothelial cell loss. 2010 TOA 44th National Congress - Oral Presentation

E45. Yıldırım Y, Bozkurt E, Yazıcı AT, Pekel G, Çakır M, Kaya V, Demirok A, Yılmaz ÖF. Evaluation of the efficacy and complications of iris-fixated anterior chamber phakic intraocular lens implantation in myopic patients. 2009 TOA 43rd National Congress - Poster

E46. Çelik HU, Çakır M, Yazıcı AT, Alagöz N, Yıldırım Y, Demirok A, Yılmaz ÖF. Use of 23-gauge vitrectomy technique in epiretinal membrane surgery. 2009 TOA 43rd National Congress - Poster

E47. Yıldırım Y, Yazıcı AT, Bozkurt E, Alagöz N, Çakır M, Kaya V, Demirok A, Yılmaz ÖF. Evaluation of macular thickness change in pseudophakic patients undergoing Nd:YAG laser capsulotomy. 2009 TOA 43rd National Congress - Poster

E48. Yıldırım Y, Hekimhan PK, Demirel B, Kaya V. Treatment of upper eyelid retraction with botulinum toxin A. 2008 TOA 42nd National Congress - Oral Presentation

E49. Yıldırım Y, Hekimhan PK, Dıraçoglu A, Kaya V, Güngel H.

Outcomes and complications related to silicone tube fixation type in dacryocystorhinostomies performed with bicanalicular intubation. 2008 TOA 42nd National Congress - Poster

E50. Yildiz BK, Yildirim Y, Agca A, Demirok A. Our results of accelerated crosslinking treatment in cases of post-LASIK ectasia. TOA 51st National Congress SS-KRC-18 / Oral Presentation

E51. Ulas MG, Yildirim Y, Agca A, Yildiz BK, Taskapili M, Demirok A. Comparison of normal and fast mode laser options in the SMILE procedure. TOA 50th National Congress SS-KRC-18 / Oral Presentation

E52. Yildirim Y, Urvasizoğlu S, Yildiz BK, Agca A, Demirok A, Taskapili M. Visual and refractive results of PTK treatment of granular corneal dystrophies. TOA 50th National Congress PS-0286 / Poster

E53. Demir G, Yildirim Y, Agca A, Demirok A, Taskapili M. Evaluation of long-term visual and refractive results in patients with mild to moderate hyperopia undergoing LASIK. TOA 50th National Congress PS-0178 / Poster

Memberships

  • ESCRS (European Society of Cataract and Refractive Surgeons)
  •  Turkish Ophthalmological Association
  •  Ophthalmological Association of Turkic Republics

Areas of Expertise

  • Cataract and Refractive Surgery
  • Corneal and Ocular Surface Diseases
  • Eye Infections
  • Optics and Rehabilitation
  • Contact Lenses

Clinical Competencies

  • Age-Related Macular Degeneration clinical study conducted with Neovista, Inc. in 2007 – Sub-investigator
  • Avedro, Inc. Keraflex myopia treatment study (2009–2011) – Sub-investigator
  • Phakic Toric IOL study (2023–2024) (Protocol code 2023-161)

Scientific Activities

  • 84 scientific publications in the field
  • Web of Science – h-index 17 and 830 citations
  • Google Scholar – h-index 25 and 1,703 citations
  • Authorship of numerous book chapters on Cataract and Refractive Surgery, as well as Cornea and Ocular Surface Surgery
  • Editorship of a book on presbyopia and its treatment
  • Second place for the Best Poster Award at the ESCRS Congress held in London

International Clinical Experience

  • The European Board of Ophthalmology Diploma (EBOD) / EBO-2016-3287
  • International Council of Ophthalmology – Basic Science 2017
  •  International Council of Ophthalmology – Optics and Refraction 2017
  • International Council of Ophthalmology – Clinical Science 2018
  •  International Council of Ophthalmology – Advanced 2018
  •  International Council of Ophthalmology – Cornea Subspecialty 2019
  •  Member of the Royal College of Surgeons of Edinburgh 2020

Certifications

  • The European Board of Ophthalmology Diploma (EBOD) / EBO-2016-3287
  •  International Council of Ophthalmology – Basic Science 2017
  • International Council of Ophthalmology – Optics and Refraction 2017
  • International Council of Ophthalmology – Clinical Science 2018
  • International Council of Ophthalmology – Advanced 2018
  • International Council of Ophthalmology – Cornea Subspecialty 2019
  • Member of the Royal College of Surgeons of Edinburgh 2020