Progression of Keratoconus after Corneal Collagen Cross-Linking Procedure


ABSTRACT:BACKGROUND:Keratoconus is a non-inflammatory, usually bilateral disorder, that leads toabnormal thinning and steepening of the cornea duo to progressive corneal instability.OBJECTIVE: To estimate the progression of keratoconus after cross linking during 1 year duration. PATIENTS AND METHODS:This study is a prospective study carried out to estimate the progression of keratoconus after cross linking. It was conducted in Dar Al Salam eye hospital, Lasik center, Baghdad city, fromMarch, 2011 to the December, 2016. All patients with keratoconus included in this study were referred from private clinic.The surgery was done in Dar Al Salam hospital by one consultant ophthalmologist. The researcher followed up the keratoconus eyes for 1 year.RESULTS:Two hundred sixty six eyes of one hundred seventy two patients were completed follow up after Collagen cross-linking using UVA light and riboflavin. Mean age of patients was 18 ± 10 years and female to male ratio was nearly 2:1. Postoperatively, VA was unchanged in 206 eyes,improved in 50 eyes, and deteriorated in 10 eyes. No significant differences were observed in means of autorefraction, simulated keratometry and central corneal thickness postoperatively for all eyes (p > 0.05).CONCLUSION:Cross linking is a minimally invasive procedure. This method can halt or reduce keratoconus progression. KEY WORDS: keratoconus and cross linking.