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Comparison of symptomatic and asymptomatic, chronic, primary angle-closure glaucoma, open-angle glaucoma, and controls.

Abstract：

PURPOSE:To determine the clinical features and anatomic parameters in asymptomatic (creeping) and symptomatic, chronic, primary angle-closure glaucoma (PACG) as compared with open-angle glaucoma (OAG) and with control subjects with normal eyes. METHODS:Forty consecutive patients with each of the following four types of eyes were studied (N = 160): eyes with symptomatic PACG, eyes with asymptomatic PACG, eyes with OAG, and the eyes of age-, sex-, and refraction-matched control subjects. The refractive status, keratometry, pachymetry, corneal diameter, anterior chamber depth, lens thickness, axial length, and relative lens position were noted. The groups were compared using a paired t test and analysis of variance. RESULTS:Patients with asymptomatic chronic PACG were older than patients in the symptomatic group, were more often men, and were more likely to have either diabetes mellitus or hypertension. Symptomatic chronic PACG eyes were more hypermetropic. Asymptomatic eyes had more iridotrabecular synechiae and minimal pupillary ruff atrophy as compared with the symptomatic eyes that had largely iridocorneal synechiae and large areas where the ruff was absent. All other clinical and anatomic parameters were statistically similar in the two groups, but differed significantly from OAG and control eyes. CONCLUSIONS:The ocular parameters of asymptomatic or creeping angle closure eyes show that these are significantly different from eyes having POAG. Asymptomatic and symptomatic chronic PACG eyes are structurally similar. Open-angle glaucoma eyes and normal eyes were comparable, but differed from both the chronic angle-closure glaucoma groups in having a larger corneal diameter, deeper anterior chamber, thinner lens, and a longer axial length. The symptomatic chronic PACG eyes showed more evidence of ischemic damage to the iris, and this could account for the symptoms reported by these patients.

journal_name

J Glaucoma

journal_title

Journal of glaucoma

authors

Sihota R,Gupta V,Agarwal HC,Pandey RM,Deepak KK

doi

10.1097/00061198-200006000-00002

keywords:

subject

Has Abstract

pub_date

2000-06-01 00:00:00

pages

208-13

issue

eissn

1057-0829

issn

1536-481X

journal_volume

pub_type

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Comparison of symptomatic and asymptomatic, chronic, primary angle-closure glaucoma, open-angle glaucoma, and controls.