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There is little prior evidence on prevalence of strabismus in Iran. Thus, this study was undertaken to investigate the prevalence of strabismus types in Azad University students aged 18-25 years in South West Iran. A total of 752 of 826 students participated in the study with a response rate of 91.4%. Mean age was 21 ±3 years with 51.65% female. Refractive errors were myopia, hypermetropia and emmetropia in 41.8%, 2.75% and 55.37% respectively. Prevalence for heterotropia, exotropia and esotropia was 1.5%, 1.2% and 0.3%. There was a significant increase in prevalence of esotropia with age group. Prevalence of exotropia was significantly higher in females and in myopes. Prevalence for heterophoria, exophoria and esophoria was 12.9%, 11.7% and 1.2%. The results show prevalence of strabismus in Iranian students which is similar to prevalence figures in the Iranian general population, but lower than prevalence on other countries.

The prevalence of tropia, phoria and their types in a student population in Iran.
Hashemi H, Pakzad R, Nabovati P, et al.
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Fiona Rowe (Prof)

Institute of Population Health, University of Liverpool, UK.

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