Refractive status of primary , middle and senior high school students in Shanghai
نویسندگان
چکیده
Methods: A total of 748 students (748 eyes) from the primary school group (PS: 483 eyes), middle school group (MS: 78 eyes) and senior high school group (SHS: 187 eyes) were included in this prospective observational case series study. The refractive error values were determined using an automatic refractometer. The spherical refractive error, cylinder power and axis were measured by non-cycloplegic screening.
منابع مشابه
شیوع مشکلات بینایی در دانش آموزان شهر شیراز سال 1387
Background & Objective: Refractive errors (myopia, hyperopia and astigmatism) could lead to an impaired quality of life affect a large proportion of the population worldwide, irrespective of age, sex and ethnic group. Such refractive errors can be easily diagnosed, measured and corrected with spectacles or other refractive corrections to attain normal vision. Since there is paucity of informati...
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