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被观察者为17岁少年,视力和色觉正常。他们要完成两种不同的视力工作,即观看近的和远的目标。用通过能力(根据通过的视觉信息量)、可见度(根据对比感度)和视网膜照度(利用公式计算)作为评价视觉分析器工怍能力的指标。观看近的视力工作包括两个阶段:第一阶段工作是研究在太阳连续照射时阅读书本上兰多氏环表对视觉功能的影响。每分钟记录通过的视觉信息量以及照度水平;确定连续的日照
The 17-year-old was observed, normal vision and color vision. They are going to do two different kinds of vision work, which is to watch near and far goals. The passability (based on the amount of visual information passed), visibility (based on contrast sensitivity), and retinal illumination (calculated using formula) are used as indicators to evaluate the visual analyzer’s ability to work. There are two stages in watching near vision work: The first stage of work is to study the effect of reading the book’s Ringndish watch on visual function when the sun shines continuously. Record the amount of visual information passed per minute and the level of illumination; determine the continuous sunshine