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Article: Study results from A.A. Yekta and colleagues update understanding of refractive errors.
- Article from:
- Biotech Week
- Article date:
- July 1, 2009
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In this recently published article, scientists in Iran conducted a study "To determine the prevalence rates of refractive errors in elderly people in Mashhad, Iran. In a cross-sectional study with a cluster sampling method, the sample population was selected proportionate to the total population of Mashhad."
"The selected citizens were then invited for eye examinations at the clinic. After an interview, refractive data were collected using objective and subjective refractions. Refractive error data were converted into spherical equivalent (SE), and myopia was defined as an SE worse than -0.50 diopters (D) and hyperopia worse than +0.50 D. Of the 1540 selected ...