Issues in infant vision screening and assessment
This chapter considers methods of infant vision testing applied in two practical contexts, screening and assessment. The demands of these two applications are quite different. Screening is the attempt to identify undetected vision problems, or their precursors, in the population as a whole. Screening has to be targeted on specific disorders for which there are clear benefits in early detection, and the methods must be appropriate, in terms of costs to the health care system and demands on families, for use with large numbers of children most of whom will turn out to be normal. Visual assessment deals with much smaller numbers of children who are already believed to have a problem with vision. The detailed nature of the problem in each case needs to be determined for purposes of diagnosis, clinical management, rehabilitation, and the understanding of the impact of any visual disability on everyday activities.
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