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为全面了解学生视力发展情况,我校于1979～1988年连续十年对在校学生进行视力监测。 1 监测方法初、高中学生每年九月检查一次视力。采用“E”型国际标准远视力表,表面照度在500Lux以上,固定检究人员。凡裸眼远视力低于1.0者定为视力不良。 2 结果与分析 2.1 十年来学生视力低下率变化自恢复高考制度以来,随着学生学习负担加重,视力不良率急剧上升,88年为79年的1.76倍,近几年渐趋缓慢增长(见表1)。
In order to fully understand the development of students’ vision, our school monitored the students for ten years from 1979 to 1988. 1 Monitoring methods Early and high school students check their eyesight once a year in September. The “E” type international standard far vision chart is adopted. The surface illuminance is above 500 Lux and the fixed inspection personnel. Those with naked eye distance vision less than 1.0 are defined as poor vision. 2 Results and analysis 2.1. Changes in pupils’ visual acuity rate over the past decade Since the resumption of the college entrance examination system, as the student’s learning burden has increased, the rate of bad eyes has risen sharply. In 88 years, it was 1.76 times the 79 years. It has gradually grown in recent years (see table). 1).