May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Prevalence and Outcomes of Cataract Surgery in an Asian Population: The Singapore Malay Eye Study (SiMES)
Author Affiliations & Notes
  • R. Lavanya
    Singapore National Eye Centre & Singapore Eye Research Institute, Singapore, Singapore
  • W. T. Tay
    Singapore Eye Research Institute, Singapore, Singapore
  • T. Aung
    Singapore National Eye Centre & Singapore Eye Research Institute, Singapore, Singapore
    Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
  • D. T. H. Tan
    Singapore National Eye Centre & Singapore Eye Research Institute, Singapore, Singapore
    Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
  • S.-M. Saw
    Singapore Eye Research Institute & Department of Community, Occupational and Family Medicine, Yong Loo Lin School of Medicine National University of Singapore, Singapore, Singapore
  • J. J. Wang
    Centre for Eye Research Australia, University of Melbourne, Melbourne, Australia
    Centre for Vision Research, University of Sydney, Sydney, Australia
  • T. Y. Wong
    Centre for Eye Research Australia, University of Melbourne, Melbourne, Australia
    Singapore National Eye Centre, Singapore Eye Research Institute & Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
  • The Singapore Malay Eye Study (SiMES)
    Singapore National Eye Centre & Singapore Eye Research Institute, Singapore, Singapore
  • Footnotes
    Commercial Relationships  R. Lavanya, None; W.T. Tay, None; T. Aung, None; D.T.H. Tan, None; S. Saw, None; J.J. Wang, None; T.Y. Wong, None.
  • Footnotes
    Support  National Medical Research Council Grants No 0796/2003, 0863/2004 and CSI/0002/2005, and Biomedical Research Council Grant No 501/1/25-5
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 2869. doi:https://doi.org/
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      R. Lavanya, W. T. Tay, T. Aung, D. T. H. Tan, S.-M. Saw, J. J. Wang, T. Y. Wong, The Singapore Malay Eye Study (SiMES); Prevalence and Outcomes of Cataract Surgery in an Asian Population: The Singapore Malay Eye Study (SiMES). Invest. Ophthalmol. Vis. Sci. 2008;49(13):2869. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: : To describe the prevalence and outcomes of cataract surgery in an urban Malay population in Singapore.

Methods: : A population based study of 3,280 (78.7% response rate) Malay people aged 40-80 years in Singapore. Participants had a standardized interview and comprehensive ocular examination, including assessment of lens status and measurement of presenting and best corrected visual acuity (VA). Eyes that were pseudophakic and aphakic were defined as previous cataract surgery. Blindness was defined as VA worse than or equal to 20/400 in the better seeing eye (LogMAR >1.30); low vision as VA worse than 20/60 but better than 20/400 in the better seeing eye (0.48< LogMAR <1.30). The causes of poor visual outcome, defined as best corrected visual acuity (BCVA) of worse than 20/60 in the cataract operated eye for unilateral surgeries and in the better seeing eye for bilateral cataract surgeries were examined.

Results: : Of 3,280 participants, 285 (men 52.3%) had cataract extraction in at least 1 eye (standardized prevalence 4.8%; 95% CI: 4.6-4.9%), and of the 285 persons, 154 (54%) had bilateral extractions (standardized prevalence 2.5%; 95% CI: 2.4-2.6%) Older age (odds ratio [OR] for per 10 years older, 2.7, 95% CI: 2.2-3.2), men (OR 1.6; 95% CI: 1.0-2.5) and the presence of diabetes (OR 2.4; 95% CI: 1.8-3.2) were associated with having cataract surgery. Poor visual outcomes were seen in 11% (n=48) of all cataract operated eyes. Diabetic retinopathy (25.0%), glaucoma (16.7%), posterior capsular opacification (14.6%), and age-related macular degeneration (12.5%) were the most common primary causes of poor visual outcomes.

Conclusions: : The prevalence of cataract surgery was 5% in Malays, similar to a previous study among Chinese persons in Singapore. Diabetic retinopathy was the primary cause for poor visual outcome, emphasizing the need for regular retinal examinations among cataract operated subjects with diabetes.

Keywords: cataract • clinical (human) or epidemiologic studies: outcomes/complications • clinical (human) or epidemiologic studies: prevalence/incidence 
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