https://www.selleckchem.com/pr....oducts/Trichostatin-
Purpose To determine the age-sex-standardized prevalence of uncorrected refractive error and its determinantsMethods This population-based cross-sectional study was conducted on 3310 people aged≥ 60 years in Tehran, Iran in 2019. Need for spectacles was defined as uncorrected visual acuity worse than 20/40 in better eye that could be corrected to more than 20/40 with suitable spectacles. Met need was defined as proportion of individuals with need for spectacles whose visual acuity was 20/40 or better with current spectacles. Unme
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