...l photo refraction; preschool children; vision screening; amblyopia [gap=511]关键词:数码折射系统；学龄前儿童；屈光筛查；弱视 ...
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There is a clear need for reliable evidence to measure the effectiveness of vision screening.
很明显的需要可靠的证据关于测量视力筛检的效果。
At present there are no robust trials available that allow the benefits of school vision screening to be measured.
目前没有强而有力的试验可以测量学校视力筛检的好处。
Although the benefits of vision screening seem intuitive the value of such programmes in junior and senior schools has been questioned.
学龄孩童和青少年之可矫治视力缺损的视力筛检 虽然直觉上视力筛检似乎有好处，此计划在初中与高中的价值已受到质疑。
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