DR. PRADEEP SAGAR

DR. SUCHITRA KUMARI BISWAL, DR.RAVI SHANKAR H.N.

Abstract

Purpose: To assess the effect of macula on basal pupil size and amplitude of pupillary constriction during light reflex in healthy individuals

Methods: Healthy individuals in the age group of 20 to 35 years were included. Sirius topographer was used to measure photopic, mesopic and scotopic pupil size. Macular retinal nerve fibre layer thickness, ganglion cell complex, retinal thickness, area of foveal avascular zone, vascular density in superficial slab were measured with Topcon DRI-OCT Triton.

Results: Ninety two eyes were included in the study. The amplitude of pupillary constriction was strongly correlated with scotopic pupil size (r: 0.62). The percentage reduction in pupil size on exposure to light was strongly correlated to photopic pupil size (r: -0.6). None of the macular parameters correlated to pupillary parameters.

Conclusion: The macular parameters including the RNFL thickness does not influence the basal pupil size or pupillary constriction in healthy individuals