Cataract Blindness Prevalence

Cataracts cause legal blindness in 10 3 percent of non hispanic whites 25 percent of african americans and 7 9 percent of hispanics who are legally blind.

Cataract blindness prevalence.

A total of 289 participants were blind with cataract as the cause crude prevalence 1 75 95 ci 1 55 to 1 96 table 1 1. The pooled prevalence rate of cataract blindness including post surgical cases by best corrected visual acuity bcva 0 05 among middle aged and older chinese was 2 30 95 ci 1 72 3 07 and. Good visual outcome in the cataract operated eyes was 62 presenting and 75 2 best corrected. The prevalence of cataract blindness was higher in punjab province in rural areas and among illiterate participants.

Figure 1 below shows the estimated prevalence rate for cataract from the seven studies reviewed in this section. Prevalence rates ranged from 2 8 in proyecto ver to 29 5 in ucla mec. Cataract prevalence and magnitude. Aao outlines the breakdown of legal blindness associated with eye disorders and diseases according to ethnic group.

Csc was 41 5 in cataract blind eyes and 48 6 in cataract blind people. The high degree of variation among the results in this figure is likely due to in part to methodological disease definition and population differences among the studies. Sample size was calculated on the basis of estimating a blindness prevalence of 8 with an error bound precision of 15 with 95 confidence.