The age- and gender-specific prevalences of refractive errors in Tehran: the Tehran Eye Study.

@article{Hashemi2004TheAA,
  title={The age- and gender-specific prevalences of refractive errors in Tehran: the Tehran Eye Study.},
  author={Hassan Hashemi and Akbar Fotouhi and Kazem Mohammad},
  journal={Ophthalmic epidemiology},
  year={2004},
  volume={11 3},
  pages={213-25}
}
PURPOSE To determine the age- and gender-specific prevalences of refractive errors in Tehran through a population-based study. METHODS A total of 6497 citizens representing a cross-section of the population of Tehran were sampled from 160 clusters using a stratified, random, cluster sampling strategy. Eligible people were enumerated through a door-to-door household survey in the selected clusters and were invited to participate. All participants were transferred to a clinic for an extensive… CONTINUE READING