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视功能是包括视力、视野、色觉、暗适应、立体视觉在内的一种综合性功能。其中视力(即视敏度)因能反映视网膜中心区的功能,因此属于最主要的视功能[1]。人类接受的外界信息中有80%是通过视觉获得的,作为人体最重要的感觉器官,眼睛的健康牵系着儿童的身心发育[2]。为引起人们对小学生不良视力状态的重视和警觉,尽早发现其苗头并加以纠正,笔者对咸阳市某小学312名学生及其家长进行了调查。
Visual function is a comprehensive function, including vision, vision, color vision, dark adaptation, stereo vision. Visual acuity (ie visual acuity) because it can reflect the central retinal function, it is the most important visual function [1]. 80% of the human external information received is obtained through vision. As the most important sensory organ of the human body, eye health involves the physical and mental development of children [2]. In order to arouse people’s attention and vigilance to the poor pupils’ visual acuity and find out their signs as soon as possible and to correct them, the author investigated 312 pupils and their parents in a primary school in Xianyang.