RT Journal Article
SR Electronic
T1 Prevalence of cataract surgery and post-surgical visual outcomes in an urban Asian population: the Singapore Malay Eye Study
JF British Journal of Ophthalmology
JO Br J Ophthalmol
FD BMJ Publishing Group Ltd.
SP 299
OP 304
DO 10.1136/bjo.2008.148650
VO 93
IS 3
A1 Lavanya, R
A1 Wong, T Y
A1 Aung, T
A1 Tan, D T H
A1 Saw, S-M
A1 Tay, W T
A1 Wang, J Jin
A1 for the SiMES team
YR 2009
UL http://bjo.bmj.com/content/93/3/299.abstract
AB Aim: The aim of the study was to describe the prevalence and visual outcomes of cataract surgery in an urban Asian population.Methods: This was a population-based study of 3280 Singapore Malays aged 40–80 years (response rate 78.7%). Participants had a standardised interview and comprehensive ocular examination. Poor post-operative visual outcome was defined as visual acuity ⩽20/60 in operated eyes of unilateral cataract extractions or in the better-seeing eye of bilateral cataract extractions. Factors associated with poor visual outcome were assessed.Results: Of 3280 participants, 284 (men 52.3%) had unilateral cataract extractions (age-standardised prevalence 4.7%, 95% CI 4.2% to 5.4%) and 154 persons (54%) had bilateral extractions. Older age, male sex and the presence of diabetes were significant factors associated with having had cataract surgery. Poor visual outcomes were present in 10.8% of the operated eyes using best-corrected visual acuity. Diabetic retinopathy (25.5%), glaucoma (17%), age-related macular degeneration (14.9%) and posterior capsular opacification (14.9%) were the main causes of poor visual outcome after surgery. Under-corrected refractive error accounted for 60% of patients with post-operative presenting visual acuity of ⩽20/60.Conclusions: Five per cent of the sample of the Malay population aged 40–80 years in Singapore had cataract surgery. One in ten had post-operative best-corrected visual acuity of 20/60 or worse, largely related to concomitant retinal diseases.