Contrast Sensitivity Under Photopic Conditions in the Prospective Evaluation of Radial Keratotomy (PERK) Study

Abstract
We studied the effect of radial keratotomy on contrast sensitivity in 69 individuals with one eye operated and one eye unoperated in the Prospective Evaluation of Radial Keratotomy (PERK) Study, with a mean follow-up time of 13.8 months (range 6 ...