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Am J Ophthalmol. 2013 Nov;156(5):1021-1033.e1. doi: 10.1016/j.ajo.2013.06.005. Epub 2013 Aug 12.

Myopia and age-related cataract: a systematic review and meta-analysis.

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  • 1Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Saw Swee Hock School of Public Health, National University of Singapore, Singapore.

Abstract

PURPOSE:

To examine if myopia is a risk factor for age-related cataract.

DESIGN:

Systematic review and meta-analysis.

METHODS:

A systematic review of the literature was performed using PubMed and Embase from their inception to March 2013 for population-based studies with data on myopia and age-related cataract, including nuclear, cortical, and posterior subcapsular (PSC) cataract. Separate meta-analyses for case-control/cross-sectional studies and cohort studies were conducted using random-effects models, with results reported as adjusted odds ratios (ORs) and relative risks (RRs), respectively.

RESULTS:

A total of 38 007 subjects aged 30-97 years from 12 population-based studies were included in the meta-analysis. Meta-analysis of the 7 cross-sectional studies and 1 case-control study confirmed that myopia was associated with increasingly prevalent nuclear (pooled OR 2.81, 95% CI 1.94-4.06) and PSC cataract (pooled OR 1.93, 95% CI 1.49-2.49) but not with cortical cataract (pooled OR 1.08, 95% CI 0.90-1.30). Meta-analysis from 3 or 4 cohort studies showed nonsignificant associations of myopia with incident nuclear (pooled RR 1.25, 95% CI 0.71-2.21), cortical (pooled RR 1.21, 95% CI 0.67-2.19), and PSC cataract (pooled RR 1.26, 95% CI 0.92-1.74).

CONCLUSIONS:

The associations of myopia with prevalent nuclear and PSC cataract are confirmed in meta-analysis of 8 study findings. The association of myopia with incidence of age-related cataract could not be confirmed in meta-analysis of 4 study findings.

Copyright © 2013 Elsevier Inc. All rights reserved.

[PubMed - indexed for MEDLINE]
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