1. Abstract Background To evaluate the distribution of central corneal thickness and its associations in the adult Chinese population. Methods The Beijing Eye Study 2006 is a population-based study including 3,251 (73.3%) subjects (aged 45+ years) out of 4,439 subjects who participated in the survey in 2001 and who returned for re-examination. Central corneal thickness (CCT) measurements were performed by slit lamp-based optical coherence tomography. Results Central corneal thickness measurement data were available for 3,100 (95.4%) subjects. Mean CCT was 556.2±33.1 μm (median: 553 μm; range: 429–688 μm). In multiple regression analysis, CCT was significantly associated with optic disc area (P ... (Read Full Article)

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