DR. LUCY NISHA

DR. HAARISH ELANGO, DR.ALKA JHA, DR. VIRESHWAR PRASAD

Abstract

Aim:To compare gonioscopy and AS OCT in detecting angle closure of different quadrants.

Methods: A Cross-sectional observational study of 100 patients above 40 yrs with no history of ophthalmic problems. Systemic and ocular examination followed by gonioscopy and AS OCT. ACA is closed if posterior trabecular meshwork is not seen on gonioscopy, on AS OCT it is closed if there is any contact between iris and angle wall.

Result: Excluding poor image quality eyes ,90 right eyes were included for study. A closed angle in at least 1 quadrant was 57% by AS OCT and 31% of by gonioscopy.Frequency of closed angle by AS OCT and gonioscopy were 46% vs 30% superiorly, 38% vs 23% inferiorly, 15% vs 12% nasally, 11% vs 13% temporally respectively

Conclusions:- Superior quadrants tend to be more closed on gonioscopy as well as AS OCT but closed ACA tend to be detected more by AS OCT than gonioscopy.