Journal article

Variations in Iris Volume with Physiologic Mydriasis in Subtypes of Primary Angle Closure Glaucoma

Arun Narayanaswamy, Ce Zheng, Shamira A Perera, Hla M Htoon, David S Friedman, Tin A Tun, Mingguang He, Mani Baskaran, Tin Aung

Investigative Ophthalmology & Visual Science | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2013

Abstract

PURPOSE: To compare the changes in iris volume with pupil dilation using anterior segment optical coherence tomography (AS-OCT) in eyes of subjects with different subtypes of primary angle closure. METHODS: This prospective study examined 44 fellow eyes (FA group) of subjects with previous acute primary angle closure (APAC), and 56 subjects (AC group) with chronic primary angle closure and/or primary angle closure glaucoma. All participants underwent gonioscopy and AS-OCT imaging. The iris volume, iris cross-sectional area, and pupil diameter were measured with custom semiautomated software. The main outcome variable analyzed was mean change in iris volume between light and dark conditions i..

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University of Melbourne Researchers