Tibbenham A D, Peckham C S, Gardiner P A
Br Med J. 1978 May 20;1(6123):1312-4. doi: 10.1136/bmj.1.6123.1312.
Distant vision screenings of a national sample of children were performed at the ages of 7, 11, and 16. Many children with normal vision at one screening showed defects at later screenings, and altogether 18% of children with normal vision at the age of 7 had defects by the time they were 16. Twelve per cent of those with normal vision at 7 and 11 had developed a visual defect by the age of 16. Apparent improvements between screenings probably resulted largely from technical difficulties inherent in testing young children. The results clearly indicate the importance of regular vision screening during the school years and the need for comprehensive but flexible back-up services.
对全国儿童样本进行了7岁、11岁和16岁时的远视力筛查。许多在一次筛查中视力正常的儿童在后来的筛查中出现了缺陷，7岁时视力正常的儿童中，到16岁时共有18%出现了缺陷。7岁和11岁时视力正常的儿童中，12%在16岁时出现了视力缺陷。筛查之间看似的改善可能主要是由于检测幼儿时固有的技术困难。结果清楚地表明了在学年期间定期视力筛查的重要性以及提供全面但灵活的后续服务的必要性。
