| Differences in baseline dark and the dark-to-light changes in anterior chamber angle parameters in whites and ethnic Chinese. | |
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MedLine Citation:
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PMID: 22076986 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To assess the anterior chamber drainage angle width in the dark and the dark-to-light change (Δ) between Caucasians and Chinese aged 40 years and older. METHODS: The study groups comprised four age- and sex-matched cohorts: American Caucasians, American Chinese, southern mainland Chinese, and northern mainland Chinese. Anterior segment optical coherence tomography (ASOCT) images of the anterior chamber angles were obtained under both light and dark conditions. The parameters analyzed included angle opening distance (AOD), angle recess area (ARA), and trabecular-iris space area (TISA). RESULTS: Data were obtained from 121, 124, 121, and 120 participants who were American Caucasians, American Chinese, and southern and northern mainland Chinese, respectively. In a multiple linear regression analysis, adjusted for age, sex, refractive status, pupil size, lens location, and anterior chamber depth (ACD) and width (ACW), the ethnic Chinese had significantly smaller ARAs (regression coefficient, β = -0.06, P < 0.001) and TISAs (β = -0.01, P = 0.039), as well as greater ΔAODs (β = 0.03, P = 0.009) and ΔTISAs (β = 0.02, P = 0.029) than did the Caucasians. For the dark-to-light change analysis, the independent associations between angle width and iris thickness (IT) and iris curvature (ICurv) were identified only in the Chinese. CONCLUSIONS: Compared with the Caucasians, the ethnic Chinese had smaller ARA and TISA, but greater dark-to-light changes in AOD and TISA, independent of refractive status and overall ocular anterior segment dimensions. |
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Authors:
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Dandan Wang; Cynthia Chiu; Mingguang He; Lingling Wu; Andrew Kao; Shan Lin |
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Publication Detail:
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Type: Comparative Study; Journal Article; Multicenter Study; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't Date: 2011-12-09 |
Journal Detail:
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Title: Investigative ophthalmology & visual science Volume: 52 ISSN: 1552-5783 ISO Abbreviation: Invest. Ophthalmol. Vis. Sci. Publication Date: 2011 |
Date Detail:
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Created Date: 2011-12-14 Completed Date: 2012-01-31 Revised Date: 2012-03-05 |
Medline Journal Info:
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Nlm Unique ID: 7703701 Medline TA: Invest Ophthalmol Vis Sci Country: United States |
Other Details:
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Languages: eng Pagination: 9404-10 Citation Subset: IM |
Affiliation:
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State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China; |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Age Distribution Aged Anterior Eye Segment / pathology, physiopathology* Asian Americans / ethnology* California / epidemiology China / ethnology Dark Adaptation / physiology* European Continental Ancestry Group / ethnology* Female Follow-Up Studies Glaucoma, Angle-Closure / diagnosis*, ethnology, physiopathology Gonioscopy / methods* Humans Image Processing, Computer-Assisted Male Middle Aged Photic Stimulation / methods* Prevalence Prospective Studies Sex Distribution Tomography, Optical Coherence |
| Grant Support | |
ID/Acronym/Agency:
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EY002161/EY/NEI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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