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。
The aim of this review was to find studies that evaluated the effectiveness of school vision screening programmes in first identifying children with reduced vision.
这篇回顾的目的是寻找评估视力筛检计划能够确定第一次筛检出视力下降孩童之效果的研究。
The absence of such evidence cannot be taken to mean that vision screening is not beneficial; simply that this intervention has not yet been tested in robust trials.
因为实证资料不足，无法断定视力筛检计划没有利益，即该项介入措施尚未经过严谨的研究试验。
There is, therefore, clearly a need for well-planned randomised controlled trials to be undertaken in various settings so that the potential benefits and harms of vision screening can be measured.
因此，很明显地需要在各种机构执行规划良好的随机对照试验，以测量视力筛检可能的好处与害处。
Screening programmes have been set up to detect this largely asymptomatic condition and refer children for treatment while an improvement in vision is still possible.
已设立的筛检计划用来筛检大部分无症状的情况，当仍有可能改善视力时把儿童转交治疗。
Screening has been recommended because vision could be improved by encouraging treatment in the majority of older people with impaired vision.
建议对大部分的老年人进行视力不全的筛检，因为视力可以经由鼓励接受治疗而获得改善。
To assess the effects on vision of mass screening of older people for visual impairment.
评估对老年人视力不全做大规模视力筛检之效用。
It is intended for screening purposes rather than for the in-depth study of a color vision defect.
它只是用来说明显示的目的，而不是用来深入研究彩色视觉的缺陷。
Office care includes screening for problems that occur more frequently in premature infants, especially vision and hearing problems.
早产儿尤其要注意视力和听力问题检查。
While the aims of multicomponent screening of older people are broad, any benefit arising from the inclusion of a vision component in the assessment will necessarily be dependent on improving vision.
对老年人进行多项目筛检的目的是广泛的，列入视力评估项目所发生的任何效益必定仰赖视力的改善。
The disability caused by a vision deficit has not been quantified and the optimum age and number of occasions for screening have not been established.
因为视力缺损造成的失能尚未被量化，且合适筛检的年龄与筛检次数也不确定。
The disability caused by a vision deficit has not been quantified and the optimum age and number of occasions for screening have not been established.
因为视力缺损造成的失能尚未被量化，且合适筛检的年龄与筛检次数也不确定。
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