Prevalence of Refractive Errors in the INK Area, Durban, South Africa.

Purpose: To determine the prevalence and types of refractive errors in persons aged 35 years and older in the Inanda, Ntuzuma, and KwaMashu (INK) area of Durban, KwaZulu-Natal Province, South Africa.

Methods: Refractive error data were obtained by autorefraction (Retinomax K-Plus; Nikon, Tokyo, Japan), retinoscopy, and subjective refraction. Refractive error was defined using spherical equivalents as myopia (<-0.

Prevalence of presbyopia and spectacle coverage in an African population in Durban, South Africa.

Purpose: To assess the prevalence of near vision impairment caused by uncorrected presbyopia and to determine the spectacle coverage for presbyopia in Durban, KwaZulu Natal, South Africa.

Methods: A cross-sectional community-based survey was conducted to determine the prevalence of presbyopia in Durban. Eighteen clusters were randomly selected from the suburbs of Durban--Inanda, Ntuzuma, and KwaMashu.