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①目的 为减轻新生儿供体穿透性角膜移植术后的高度近视,对植片直径的计算和植床制做方法进行了改良。②方法对25只家兔施行了幼兔供体角膜改良穿透性角膜移植术。改良方法包括根据几何运算推导出植片直径计算的矫正公式及大桥状穿透性角膜移植术式。③结果 实验组术后180d时平均角膜屈光度为49.11±4.72D,而对照组(n＝25)为60D．④结论 该方法可以减轻以新生儿供体角膜行穿透性角膜移植术后的高度近视,有临床研究价值。
Objectives To reduce the high myopia after neonatal donor penetrating keratoplasty, the calculation of implant diameter and the method of implanting were improved. Methods The rabbit corneal modified penetrating keratoplasty was performed in 25 rabbits. The improved method includes deriving the correction formula for calculating the diameter of the implants and the bridge-shaped penetrating keratoplasty according to the geometric operation. ③ Results The mean corneal refraction of the experimental group was 49.11 ± 4.72D at 180 days after operation and 60 days in the control group (n = 25). ④ Conclusion This method can reduce neonatal donor corneal penetrating keratoplasty after a high degree of myopia, a clinical study.