title: Risk Factors in Post-LASIK Corneal Ectasia.
abstract: Purpose. To evaluate the risk factors for post-laser in situ keratomileusis (LASIK) ectasia. Materials and Methods. Medical records of 42 eyes of 28 (10 women, 18 men) patients who developed corneal ectasia after LASIK were retrospectively reviewed. Topographical features and surgical parameters of those patients were evaluated. Results. The mean age of patients was 34.73 ± 6.50 (23-48) years and the mean interval from LASIK to the diagnosis of post-LASIK ectasia was 36.0 ± 16.92 (12-60) months. The following factors were determined as a risk factors: deep ablation (>75  μ m) in 10 eyes, FFK (forme fruste keratoconus) in 6 eyes, steep cornea (>47 D) in 3 eyes, pellucid marginal degeneration (PMD) in 2 eyes, thin cornea (<500  μ m) in 2 eyes, thin and steep cornea in 2 eyes, thin cornea and deep ablation in 5 eyes, FFK and steep cornea in 2 eyes, and FFK, steep cornea, and deep ablation in 1 eye. However no risk factor has been determined in 9 eyes (21.4%). Conclusion. The findings of our study showed that most of the patients who developed post-LASIK ectasia have a risk factor for post-LASIK ectasia. However, the most common risk factor was deep ablation.
authors.affiliation: Department of Ophthalmology, Medicine Faculty, Fatih University, Eski Londra Asfaltı, Hürriyet Mah. Dumlupınar Sokak No. 10, Şirinevler-Bahçelievler, 34192 İstanbul, Turkey.
authors.forename: Mehmet Gurkan
authors.initials: MG
authors.lastname: Tatar
authors.affiliation: Department of Ophthalmology, Medicine Faculty, Fatih University, Eski Londra Asfaltı, Hürriyet Mah. Dumlupınar Sokak No. 10, Şirinevler-Bahçelievler, 34192 İstanbul, Turkey.
authors.forename: Feride
authors.initials: F
authors.lastname: Aylin Kantarci
authors.affiliation: Department of Ophthalmology, Medicine Faculty, Fatih University, Yalı Mah. Sahil Yolu Sokak No. 16, Maltepe, 34844 İstanbul, Turkey.
authors.forename: Aydin
authors.initials: A
authors.lastname: Yildirim
authors.affiliation: Department of Ophthalmology, Medicine Faculty, Fatih University, Yalı Mah. Sahil Yolu Sokak No. 16, Maltepe, 34844 İstanbul, Turkey.
authors.forename: Haşim
authors.initials: H
authors.lastname: Uslu
authors.affiliation: Department of Ophthalmology, Medicine Faculty, Fatih University, Atatürk M. Sütçü İmam Caddesi No. 14, Ümraniye, 34764 İstanbul, Turkey.
authors.forename: Hatice Nur
authors.initials: HN
authors.lastname: Colak
authors.affiliation: Department of Ophthalmology, Medicine Faculty, Fatih University, Atatürk M. Sütçü İmam Caddesi No. 14, Ümraniye, 34764 İstanbul, Turkey.
authors.forename: Hasan
authors.initials: H
authors.lastname: Goker
authors.affiliation: Department of Ophthalmology, Medicine Faculty, Fatih University, Yalı Mah. Sahil Yolu Sokak No. 16, Maltepe, 34844 İstanbul, Turkey.
authors.forename: Bulent
authors.initials: B
authors.lastname: Gurler