Korean J Ophthalmol > Volume 16(1); 2002 > Article
Korean Journal of Ophthalmology 2002;16(1):20-25.
DOI: https://doi.org/10.3341/kjo.2002.16.1.20    Published online June 30, 2002.
Ultrasound biomicroscopic dimensions of the anterior chamber in angle-closure glaucoma patients.
Hyung Jin Cho, Je Moon Woo, Kun Jin Yang
Department of Ophthalmology, Chonnam National University Hospital, Chonnam National University Research Institute of Medical Sciences, Gwangju, Korea.
In order to evaluate the morphologic types of appositional angle-closure glaucoma, biometric measurements were made in angle-closure glaucoma patients using Ultrasound biomicroscopy (UBM). Twenty-six patients with primary angle-closure glaucoma and 21 cataract patients with as a control group were examined. The angle-closure glaucomatous eyes were classified as type B in which the angle closure started at the bottom of the angle and type S in which the angle closure occurred in the vicinity of Schwalbe's line. The trabecular-ciliary process distance (TCPD, type B; 873.20+/-86.77 microm, type S; 832.52+/-82.96 microm, control; 1233.50+/-73.01 microm, p = 0.000) and the angle opening distance (AOD500, type B; 89.75+/-63.27 microm, type S; 88.85+/-72.95 microm, control; 304.40+/-104.30 microm, p = 0.000) were significantly shorter in patients with angle closure vice control group. No significant difference were noted in the three groups of patients in regards to iris thickness or ciliary process-iris angle. In this study, we have demonstrated that there are two types of appositional angle-closure and have shown the forward rotation of the ciliary process without changes of the ciliary process-iris angle in cases of angle-closure glaucoma.
Key Words: angle-closure glaucoma;angle opening distance;trabecular-ciliary process diatance;ultrasound biomicroscopy

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