Purpose: The purpose of this study was to evaluate prevalence of keratoconus among candidates of refractive surgery in upper Egypt .
Setting: Sohag university hospital and Future center (a private center) for LASIK and refractive surgery in Sohag governorate, Egypt.
Design: Observational cross-sectional study.
Patients and Methods: refractive surgery candidates referred for preoperative evaluation before laser in-situ keratomiliusis (Lasik), photorefractive keratectomy (PRK) and phakic intraocular lens in the period from April 2015 to September 2015 were screened for keratoconus using Sirrus Scheimpflug camera.
Results: 1202 patients; 623 males and 579 females were included in this study. Keratoconus was detected in 210 patients (17.5%) .
Conclusions: Prevalence of keratoconus within refractive surgery candidates in upper Egypt is relatively high which may reflect an underlying high prevalence in the general population.