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Abstract #53993 Published in IGR 15-2
Comparison of Ocular Biometry Between Eyes With Chronic Primary Angle-Closure Glaucoma and their Fellow Eyes With Primary Angle-Closure or Primary Angle-Closure Suspect
Huang J; Wang Z; Wu Z; Li Z; Lai K; Ge JJournal of Glaucoma 2015; 24: 323-327
PURPOSE: To compare the eye with chronic primary angle-closure glaucoma (CPACG) with its fellow eye without glaucoma damage and to determine the biometric differences that may predispose to development of CPACG. METHODS: Consecutive patients diagnosed with CPACG in 1 eye and primary angle-closure (PAC)/primary angle-closure suspected (PACS) in the fellow eye were recruited. The biometric parameters of both the eyes were measured by A-scan ultrasonic biometry and ultrasound biomicroscopy. Comparisons of visual function, baseline intraocular pressure (IOP), and the biometric measurements were made. RESULTS: Forty-one patients were recruited. Eyes with CPACG had worse visual function, higher baseline IOP, and larger cup-to-disc ratio than their fellow eyes with PAC/PACS (P<0.001). Eyes with CPACG had shallower anterior chamber depths, smaller anterior chamber angles, thinner irises, and longer iris-ciliary process distances than their fellow eyes with PAC/PACS (P<0.05). There were no significant differences in terms of lens thicknesses, axial lengths, lens vault, and trabecular-ciliary process distances. CONCLUSIONS: Lens thickness, lens location, and axial length do not appear to play a significant role in the progression from PAC/PACS to CPACG. A thin and anterior iris bowing may be related to the progression from PAC/PACS to CPACG.
*State Key Laboratory of Ophthalmology, Department of Glaucoma, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China †Center for Advanced Eye Care, Carson City, NV.
Full articleClassification:
9.3.2 Chronic primary angle closure glaucoma (pupillary block) (Part of: 9 Clinical forms of glaucomas > 9.3 Primary angle closure glaucomas)
9.3.4 Primary angle closure suspect (Part of: 9 Clinical forms of glaucomas > 9.3 Primary angle closure glaucomas)
