Visual Performance Under Dilated Conditions Following Excimer Photorefractive Keratectomy

The goal of photorefractive keratectomy (PRK) is to correct refractive error permanently and provide patients with optimized visual performance without corrective lenses. If high contrast visual acuity is used as the measure of visual performance, numerous studies can document the stability and predictability of PRK, particularly for mild to moderate myopes. The vast majority of individuals in these studies remain within one line of their pre-operative, best-corrected acuity, while greatly improving their uncorrected visual acuity.1-4