NDLI: Prevalence of refractive errors in a multiethnic Asian population: the Singapore epidemiology of eye disease study.

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Prevalence of refractive errors in a multiethnic Asian population: the Singapore epidemiology of eye disease study.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wong, Tien Y. Anuar, Ainur Rahman Cheng, Ching-Yu Chew, Merwyn Saw, Seang-Mei Zheng, Ying-Feng Pan, Chen-Wei Gazzard, Gus Aung, Tin
Spatial Coverage	Singapore
Description	Country affiliation: Singapore Author Affiliation: Pan CW ( Saw Swee Hock School of Public Health, National University of Singapore, Singapore.)
Abstract	PURPOSE: To determine the prevalence of refractive errors in a multiethnic Asian population aged over 40 years and to examine secular trends and racial differences. METHODS: A total of 10,033 adults (3353 Chinese, 3400 Indians, and 3280 Malays) participated in this study. Refractive error was determined by subjective refraction. Ocular biometric parameters were determined by partial coherence interferometry. Myopia and high myopia were defined as spherical equivalent (SE) of less than -0.5 diopters (D) and -5.0 D, respectively. Hyperopia was defined as SE of more than 0.5 D. Astigmatism was defined as cylinders less than -0.5 D. RESULTS: The prevalence of myopia, high myopia, hyperopia and astigmatism in Singapore adults aged over 40 years was 38.9% (95% confidence interval [CI] 37.1, 40.6); 8.4% (95% CI 8.0, 8.9); 31.5% (95% 30.5, 32.5); and 58.8% (95% CI 57.8, 59.9), respectively. Compared with the Tanjong Pagar Survey 12 years ago, there was a significant increase in the prevalence of astigmatism and mean axial length (AL) in Chinese adults aged over 40 years in Singapore. Chinese were most likely to be affected by myopia, high myopia, astigmatism, and had the longest AL among the three racial groups. CONCLUSIONS: The prevalence of myopia in Singapore adults is lower compared with the younger 'myopia' generation in Singapore. The prevalence of astigmatism and mean AL have been increasing significantly within the past 12 years in the Chinese population. Chinese adults had higher prevalence of myopia, high myopia, astigmatism, as well as the longer AL compared with non-Chinese adults in Singapore.
ISSN	01460404
e-ISSN	15525783
Journal	Investigative Opthalmology & Visual Science
Issue Number	4
Volume Number	54
Language	English
Publisher	Association for Research in Vision and Ophthalmology
Publisher Date	2013-04-09
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Asian Continental Ancestry Group Population Surveillance Refraction, Ocular Refractive Errors Ethnology Age Distribution Interferometry Diagnosis Physiopathology Retrospective Studies Risk Factors Sex Distribution Singapore Epidemiology Comparative Study Research Support, Non-u.s. Gov't Discipline Ophthalmology
Content Type	Text
Resource Type	Article
Subject	Ophthalmology Sensory Systems Cellular and Molecular Neuroscience

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