摘要
戴眼镜或接触镜矫正散光往往使患者不够满意。为了探索手术矫治散光的意义,作者曾作弧形楔状角膜切除术矫治高、中度角膜散光,以后又对一些戴眼镜不适的先天性散光病例作弧形角膜切开术治疗。自1989年3月以来,在作放射状角膜切开术治疗近视时,对兼有散光者联合作旗状角膜切开术。现将25例(44眼)平均观察15.5个月后的效果报告如下。
The author performed44 eyes of radial keratotomy combined with flag incisions using adiamond micrometer knife to correct myopia and astigmatism.A mean postoperative follow-up wasl5.5months.The average of postoperative residual astigmatism of keratometric read-ing was 0.21D.This was 2.26D less than 2.47D of preoperative astigmatism.The decrease inastigmatism ranged from 0.9D to 3.26D.The mean postoperative cylinder was-0.23D.Thiswas-2.41D less than-2.64D of preoperative cylinder.The decrease in cylinder ranged from—1.00D to—4.25D.The differences between preoperative and postoperative astigmatismaxes were not statistically significant.The mean preopetive myopia was—5.28D and postop-erative was—0.57D.The decrease in myopia was-4.71D.2.3%of eyes lost one line of bestcorrected visual acuity.The endothelial cell loss rates were4.6 %and 4.8%in the central andperipheral cornea.This demonstrated that the astigmatic keratotomy may be a safe proce-dure.
