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随机抽取本市在校高中学生41名82眼作为观察对象，常规眼科检查、2％后马托品滴眼液扩瞳验光、排除眼疾。然后用黄色簿本和白色簿本各连续书写两小时，分别记录书写前后每眼的调节近点，高、中、低对比视力，对比阈值变化。结果显示，黄色簿本可以延缓高、中对比视力下降，延缓对比阈值增大和调节疲劳。其主要原因是黄色属单一光谱，进入眼内光量子少，耗能少，可减少视觉中枢疲劳。所以使用黄色簿本，可改善视觉环境，有利于学生近视眼的综合防治。
A total of 82 eyes of 41 high school students in our city were randomly selected as observational subjects, and routine ophthalmic examinations were performed. Then use the yellow book and the white book to write two consecutive hours, respectively, before and after writing records for each eye near point of adjustment, high, medium and low contrast, contrast threshold changes. The results showed that the yellow book can delay high and middle contrast decreased vision, delay the increase of contrast threshold and adjust fatigue. The main reason is that yellow is a single spectrum, into the eye less light quantum, less energy consumption, can reduce visual center fatigue. Therefore, the use of yellow book, can improve the visual environment, is conducive to the comprehensive prevention and treatment of myopia.