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Myopia in Chinese students more prevalent in middle-income province vs. low-income province
The prevalence of clinically significant myopia among middle-income students in China may be almost twice that of lower-income students, according to a study.The study compared students from China’s 14th ranked administrative region of Shaanxi vs. students from the second poorest province of Gansu; 19,626 students were randomly selected from one class among the fourth and fifth grades from one school of each township from each of the provinces. Clinically significant myopia was classified as uncorrected visual acuity of 6/12 or worse in either eye and a spherical equivalent of–0.5 D (Read more...)