Safety of eyeglasses wear for visual acuity among middle school students in northwestern rural China: a cluster-randomised controlled trial

Ma, Y; Zhang, XW; Li, HY; Ma, XC; Friesen, D; Rozelle, S; Pang, XP; Zhou, M; Congdon, N

Zhou, M (corresponding author), Northwest Univ, Sch Publ Adm, Xian, Shaanxi, Peoples R China.

BMJ OPEN OPHTHALMOLOGY, 2020; 5 (1):

Abstract

Objective To assess the effect of free eyeglasses provision on visual acuity among middle school students in northwestern rural China. Methods and ana......

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