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Prevalence of Refractive Errors in Iranian University Students in Kazerun by Hassan Hashemi; Reza Pakzad; Babak Ali; Abbasali Yekta; Hadi Ostadimoghaddam; Javad Heravian; Reyhaneh Yekta; Mehdi Khabazkhoob is a Medicine article available to read on EtoBox.

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## Purpose: To determine the prevalence of refractive errors and visual impairment and the correlation between personal characteristics, including age, sex, weight, and height, with different types of refractive errors in a population of university students in the south of Iran. ## Methods: In this cross-sectional study, a number of university majors were selected as clusters using multi-stage sampling in all universities located in Kazerun (27 clusters of 133 clusters). Then, proportional to size, a number of students in each major were randomly selected to participate in the study. Uncorrected and corrected visual acuity, non-cycloplegic objective refraction and subjective refraction were measured in all participants. ## Results: The prevalence and 95% confidence interval (CI) of presenting visual impairment and blindness was 2.19% (1.48–3.23) and 0.27% (0.12–0.62), respectively. Refractive errors comprised 75% of the causes of visual impairment. The prevalence (95% CI) of myopia [spherical equivalent (SE) ≤ –0.5 D], hyperopia (SE ≥ 0.5 D), and astigmatism (cylinder power < –0.5 D) was 42.71% (39.71–45.77), 3.75% (2.85–4.51), and 29.46% (27.50–31.50), respectively. Totally, 49.03

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Author

Hassan Hashemi; Reza Pakzad; Babak Ali; Abbasali Yekta; Hadi Ostadimoghaddam; Javad Heravian; Reyhaneh Yekta; Mehdi Khabazkhoob

Published

2020

Language

EN

Field

Medicine (Health Sciences)