English

Retinal sensitivity in healthy Indians using microperimeter.

This article is from Indian Journal of Ophthalmology , volume 62 . Abstract Aims:: To establish the retinal sensitivity values in healthy Indians using microperimeter. Materials and Methods:: In this prospective study, 144 healthy volunteers were included. All the participants underwent a comprehensive ophthalmic examination including contrast sensitivity. Microperimetry was performed in the central 20° of the macula using 76 stimulus points to assess the retinal sensitivity, and the fixation characteristics in the study population were assessed. Results:: The mean age of the study sample was 43.08 ± 10.85 years (range: 25-69). Mean retinal sensitivity was 18.26 ± 0.99 dB. Males had significantly increased retinal sensitivity (18.34 vs. 18.17 dB, P = 0.03). The linear regression analysis revealed a 0.04 dB per year age-related decline in mean retinal sensitivity. Contrast sensitivity was significantly correlated with the mean retinal sensitivity (r = 0.432, P < 0.001). Fixation stability in the central 2° and 4° were 69% and 89%, respectively. Conclusion:: Microperimeter is an ideal tool to assess the retinal sensitivity and the fixation behavior. These normative values could help

Sign in with your free account to read, download EPUBs or listen.