Current phenotype of keratoconus patients at King Khaled Eye Specialist Hospital
2013
Purpose To identify the characteristics of Keratoconus (KC) patients referred to the largest tertiary eye institute in Saudi Arabia (SA).
Methods Chart review of 483 patients from Jan. to Dec 2010. Amsler-Krumeich classification was used for severity staging.
Results The mean age of 944 eyes at diagnosis and referral were 21.6 and 28.1 years, respectively. Male to female ratio was 2:1. Mean central corneal thickness was 390 (range, 221-619) um. Staging asymmetry between both eyes in bilateral (95.4%) cases were present in 53.8%. Male patients were diagnosed in mild stage (stage1), while, female patients in advanced one (stage 4). Advanced stage was significantly diagnosed at mean age of 19.76 years. Uncorrected visual acuity decreased with increasing disease staging (≥20/80 in 46.4% of stage 1, while 30 years of age.
Conclusion Our KC patients are similar to those reported in Indians with regards to early disease-onset, advanced stages, rapid progression, more scarring & lower contact lens wearers.
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