Table 3 Adjusted prevalence of bilateral blindness (presenting and pinhole vision in better eye) by sex in people aged 50 years and older
Country (survey area)Presenting VA <3/60-NLPPinhole VA <3/60-NLP
MalesFemalesTotalTotal
Prevalence (%)Prevalence (%)Prevalence (95% CI)Prevalence (95% CI)
Paraguay (whole country)2.83.53.1 (2.2% to 4.4%)2.6 (1.6% to 3.6%)
Peru (Piura-Tumbes District)3.64.34.0 (3.2% to 4.8%)2.6 (2.2% to 3.1%)
Argentina (part of Buenos Aires)1.01.51.3 (0.9% to 1.6%)1.0 (0.7% to 1.3%)
Brazil (Campinas city)1.61.61.6 (0.9% to 2.2%)1.4 (0.7% to 2.1%)
Cuba (Havana city)1.72.01.9 (1.3% to 2.5%)1.8 (1.2% to 2.4%)
Venezuela (whole country)2.12.42.3 (1.7% to 2.8%)2.0 (1.5% to 2.5%)
Guatemala (4 provinces)3.14.03.6 (2.9% to 4.3%)3.5 (2.9% to 4.2%)
Mexico (Nuevo Léon State)2.01.11.5 (1.1% to 1.9%)1.3 (0.9% to 1.7%)
Chile (Bio Bio Province)1.41.31.4 (0.8% to 1.9%)1.2 (0.7% to 1.7%)