Journal article

Gonioscopy in adult Chinese: The Liwan Eye Study

Mingguang He, Paul J Foster, Jian Ge, Wenyong Huang, Dandan Wang, David S Friedman, Peng T Khaw

INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2006

Abstract

PURPOSE: To assess gonioscopic characteristics of the drainage angle in adult Chinese in an urban area of southern China. METHODS: Clustered random sampling was used to select adults aged 50 years and older in Liwan District, Guangzhou. Gonioscopy was performed on all the subjects. The geometric angle width was graded in the superior and inferior quadrants, according to the Spaeth system. In addition, apparent and true iris insertion was classified in four quadrants with static and dynamic gonioscopy. The peripheral iris profile was described as steep, regular, concave, and plateau. Data are presented for all phakic right eyes. Secondary or iatrogenic cases were excluded in the analysis of p..

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