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青少年及儿童视力低下已成为国内外共同关注的公共卫生问题,是我国和世界许多国家、地区儿童青少年的常见病、多发病之一,严重影响了儿童青少年的健康成长。儿童视力缺陷主要是屈光不正,若不及时发现并纠正,难免发生永久性视觉障碍[1]。屈光不正是引起视力损害的最常见原因,又是致盲的主要因素。屈光不正发生年龄早,多发
Poor eyesight of adolescents and children has become a public health issue of common concern both at home and abroad. It is one of the common and frequently-occurring diseases of children and adolescents in many countries and regions in our country and the world, and seriously affects the healthy growth of children and adolescents. Visual impairment in children is mainly refractive errors, if not found and corrected, will inevitably occur permanent visual impairment [1]. Refractive error is the most common cause of visual impairment, but also the main factor of blindness. Ametropia occurs at an early age, multiple