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目的:对湖北地区17～19岁人群的角膜散光情况与不同近视度数的关系进行调查,找出其变化规律。方法:对随机抽取的762例湖北地区17～19岁居民进行散光度、轴向及近视度数的测定,并分析其变化规律。结果:湖北地区17～19岁居民中,各个近视度段散光在25°～150°范围内所占人数比例最大,各个近视度段均呈现顺规散光人数多于逆规散光。其中女性高度近视段约为70.1%,中度近视段约为78.6%,低度近视段约为83·8%;男性高度近视段约为64.7%,中度近视段约为73.8%,低度近视段约为82.3%。17～19岁男性及女性中各近视度段顺规散光人数比例差异没有统计学意义。17～19岁男性低度近视段者0°～200°散光比例高于其他两组,差异有统计学意义,且有随近视度数增高,0°～200°散光人数所占比例有减低趋势;女性高度近视段在0°～200°散光人数比例低于其它两组,差异有统计学意义。结论:湖北地区17～19岁居民中,各个近视度段散光在25°～150°范围内所占人数比例最大,且各个近视度段不论男女均呈现顺规散光人数多于逆规散光;男性低度近视段在0°～200°散光比例高于其它两组;女性高度近视段0°～200°散光人数比例低于其它两组。
Objective: To investigate the relationship between corneal astigmatism and different degree of myopia in 17 ~ 19 years old population in Hubei Province, and to find out the changing rules. Methods: A total of 762 residents aged 17-19 years in Hubei Province were randomly selected for the determination of astigmatism, axial and myopia, and their changes were analyzed. Results: Among residents aged 17-19 years in Hubei Province, the proportion of astigmatism in each myopia ranged from 25 ° to 150 °, and the number of astigmatism astigmatism was higher in all myopia segments. Among them, the female myopia segment was about 70.1%, the moderate myopia segment was 78.6%, the low myopia segment was 83.8%, the male myopia segment was 64.7%, the moderate myopia segment was 73.8% Myopia is about 82.3%. There was no significant difference in the proportion of astigmatism between myopia and males in 17 ~ 19 years old. The percentage of astigmatism of 0 ° ~ 200 ° in men with low myopia between 17 and 19 years old was higher than that of the other two groups, the difference was statistically significant. And as the degree of myopia increased, the percentage of astigmatism in 0 ° ~ 200 ° decreased. The proportion of female high myopia in 0 ° ~ 200 ° astigmatism was lower than the other two groups, the difference was statistically significant. Conclusion: Among residents aged 17-19 years in Hubei province, the proportion of astigmatism in each myopia ranged from 25 ° to 150 °, and the incidence of astigmatism was higher in all myopia segments than in men and women The proportion of low myopia in 0 ° ~ 200 ° astigmatism was higher than the other two groups. The proportion of astigmatism in 0 ° ~ 200 ° in high myopia was lower than that in the other two groups.