Research
Prevalence of the Refractive Errors by Age and Gender: The Mashhad Eye Study of Iran
The purpose of this study was to determine the prevalence rates of myopia and hyperopia in a population in Mashhad, Iran.
The prevalence of myopia and hyperopia in individuals ≤15 years old was 3.64% (95% CI: 2.19–5.09) and 27.4% (95%CI: 23.72–31.09), respectively.
Myopia was found to increase with age in individuals ≤15 years and decrease with age in individuals >15 years of age.