Abstract
Abstract: :
Purpose: To study the correlation of retinal sensitivity measured with liquid crystal display (LCD) microperimetry to visual acuity. Methods: This is a retrospective chart review of patients that had LCD microperimetry perfomed. We included eyes with the following posterior segment pathologies: diabetic retinopathy, macular degeneration, epiretinal membranes, macular holes, hypertensive retinopathy, and optic neuropathy, as well as eyes without any posterior segment pathology. Eyes were divided into three groups according to visual acuity: Group 1: greater than 20/50, Group 2: 20/50–20/100, Group 3: less than 20/100. Macular sensitivity in decibels was measured using the LCD microperimeter. Mean retinal sensitivities at central 2 degrees and 12 degrees were correlated with best–corrected visual acuity. Results: One hundred twenty eyes were included in the review. The mean age of the patients was 60 years old, with an equal distribution between the genders. Mean retinal sensitivity correlated linearly with the visual acuity in each group The difference in mean sensitivity for each of the groups was statistically significant (P<0.05). Conclusion: Mean retinal sensitivity measured with LCD microperimeter is correlated with visual acuity. LCD microperimetry reliably measures retinal sensitivity in patients with various ocular pathologies.
Keywords: perimetry • visual acuity • retina