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本文对５－７４岁散光患者３７４５例（６９５４眼）的总合散光进行了横向的研究和分析。逆规散光的比重为３３．４６％，其发生率与年龄增长的相关关系高度密切（ｒ＝０．９７９，ｐ＜０．００１），而散光度＞３．００Ｄ时相关系数为０．３５，统计学检验差异无显著性（ｐ＞０．２０）。＜７０岁者顺规向逆规散光变化的总平均值为２．４８±０．５５Ｄ，每年平均改变０．０３５Ｄ。本资料提示，逆规散光性变化可能主要归因于晶体的散光改变，其次是角膜曲率的老年性变化。
In this paper, the total astigmatism of 3745 patients (6954 eyes) with astigmatism aged 5-74 years was studied and analyzed horizontally. The inverse proportion of astigmatism was 33.46%, the incidence was highly correlated with age (r = 0.979, p <0.001), while the correlation coefficient of astigmatism> 3.00D was 0.35 There was no significant difference in statistical test (p> 0.20). <70-year-old regulatory compliance with the standard deviation of astigmatism change of the mean of 2.48 ± 0.55D, an average change of 0.035D per year. The data suggest that changes in inverse rules scattered light may be mainly due to changes in astigmatism in the crystal, followed by changes in age of the corneal curvature.