宁波大学在校学生的视力变化及其原因分析

ANALYSIS ON THE VISUAL ACUITY CHANGES AND ITS CAUSES OF STUDENTS IN NINGBO UNIVERSITY

本文通过对宁波大学在校学生的视力状况和视力变化情况的调查,采用非参数统计中的独立性检验方法,对学生的视力状况和视力变化情况进行分析,指出不但学生的视力不良率相当高,而且他们的视力仍在继续下降。同时对学生视力下降的主要原因进行了分析,并提出了相应的保护视力的对策。

This paper,based on an investigation of the vision state and the visual acuity changes of students in Ningbo University,makes a study of the visual acuity changes of students during their study in university,with the test of independence of nonparametric statistic method,and points out that the proportion of students with abnormal visual acuity is not only anxiously high but even getting higher.After making an analysis of the main causes of vision impairment of students,the author proposes some measures to protect the vision of students.