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目的探讨角膜穿孔伤后角膜散光的性质及程度与伤口部位及瘢痕长度之间的相关性,并列出其相关的一元线性方程式。方法测量线形角膜伤口的长度,并用O rbscavⅡ、角膜曲率计及检影验光法检测伤口愈合并拆除缝线3个月后的散光度,分析瘢痕类型、长度和部位与散光性质及散光度之间的关系。对30只角膜中周部位的线形角膜瘢痕的患眼进行统计学处理,应用线性回归方程进行分析,列出瘢痕长度与散光度之间的一元线性回归方程式。结果角膜中周部位的线形瘢痕散光的性质与瘢痕长轴与角膜缘切线的关系有关,散光度与长度之间存在线性关系,两者间线性回归方程为:Y=1.703+0.478X。结论外伤性角膜瘢痕与散光的类型有一定的关系,其瘢痕长度与散光度呈正相关。
Objective To investigate the correlation between the nature and degree of corneal astigmatism after corneal perforation injury and the length of the wound site and scar, and list the related linear equations. Methods The length of linear corneal wound was measured. The degree of astigmatism after 3 months of wound healing and suture removal was measured by O rbscav Ⅱ, corneal curvature meter and retinoscopy. The type, length and location of ascites between astigmatism and astigmatism and astigmatism were analyzed Relationship. The corneal sclerosis of the corneal perimeter of 30 corneas was statistically analyzed. The linear regression equation was used to analyze the linear regression equation between scar length and astigmatism. Results There was a correlation between the linear astigmatism and the tangent of the corneal scar in the central corneal scar. The linear regression equation was Y = 1.703 + 0.478X. Conclusion The traumatic corneal scar has a certain relationship with the type of astigmatism. The length of the scar is positively correlated with the degree of astigmatism.