One-year epidemiological study of patients with Keratoconus in eastern Iran

Abstract

Background: Keratoconus is a degenerative and progressive of corneal disease. Unlike other country, studies about epidemiology of keratoconus are limited in the Iran. Aim of the study is survey of keratoconus epidemiology in the eastern Iran. Methods: For doing the cross-sectional study, patients were evaluated at the ophthalmology center of Mashhad County, during 2015-2016 year. Firstly, medical history was obtained from all new patients. Ocular examination was done for detection of keratoconus signs including Scissor reflex, Rizzuti sign, Fischer ring, Vogt striae and any sign of previous hydrops. For all suspicious patient’s topography was done. Also, the required demographic data were recorded. The data were analyzed using SPSS software (version 18). Results: Totally, 90 eyes from 45 patients were studied. The average age of patients was 25.1 ± 6 years and the average age of onset of the disease was 17.72 ± 7.76 years. More than half of patients (55.6%) were female. One-sided Keratoconus was found in 11.1 %. In 10 patients (10 eyes), there was history of penetrating keratoplasty due to advanced keratoconus.