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Abstract #8452 Published in IGR 5-1
Ultrasound biomicroscopic dimensions of the anterior chamber in angle-closure glaucoma patients
Cho HJ; Woo JM; Yang KJKorean Journal of Ophthalmology 2002; 16: 20-25
In order to evaluate the morphological 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 used 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 μm, type S; 832.52 ±82.96 μm, control; 1233.50 ±73.01 μm, p = 0.000) and the angle opening distance (AOD500, type B; 89.75 ±63.27 μm, type S; 88.85 ±72.95 μm, control; 304.40 ±104.30 μm, p = 0.000) were significantly shorter in patients with angle closure compared to the control group. No significant differences were noted between the three groups of patients with regard to iris thickness or ciliary process-iris angle. In this study, the authors demonstrated that there are two types of appositional angle-closure and showed the forward rotation of the ciliary process without changes of the ciliary process-iris angle in cases of angle-closure glaucoma.
Dr. H.J. Cho, Department of Ophthalmology, Chonnam National University Hospital, Chonnam National University Research Institute of Medical Sciences, Gwangju, Korea
Classification:
6.12 Ultrasonography and ultrasound biomicroscopy (Part of: 6 Clinical examination methods)
9.3 Primary angle closure glaucomas (Part of: 9 Clinical forms of glaucomas)
