The Age- and Gender-Specific Prevalences of Refractive Errors in Tehran: The Tehran Eye Study
Hassan Hashemi, Akbar Fotouhi, Kazem Mohammad
The purpose of this study was to determine the age- and gender-specific prevalences of refractive errors in Tehran through a population-based study.
The age- and gender-standardized prevalence of myopia based on manifest refraction was 21.8% (95% confidence interval [CI], 20.1 to 23.5) and that for hyperopia was 26.0% (95% CI, 24.5 to 27.6).
Prevalences of myopia and hyperopia differed significantly among the age and gender groups (P < 0.001).