Liu Y, Li S
National Ophthalmological Laboratories, Ministry of Public Health, China.
Yan Ke Xue Bao. 1991 Dec;7(4):181-4, 175.
Seventy-four eyes underwent extracapsular cataract extraction with posterior chamber intraocular lens implantation for two years were followed up. The examination by keratometer and manifest refraction revealed 85.14% of the eyes (63 eyes) existing > or = 0.5Diopter (D) corneal astigmatism with average 1.78 +/- 1.41 D, predominantly with-the-rule (77.03%). The results demonstrated that corneal astigmatism induced by 10-0 monofilament nylon suture was not absent completely even 2 years later postoperatively, persistent corneal astigmatism could affect ultimate uncorrected visual acuity and spectacle cylinder was almost equal to the corneal astigmatism. It was suggested that some proper measures to control corneal astigmatism following posterior chamber intraocular lens implantation must be considered.
对74只接受了白内障囊外摘除联合后房型人工晶状体植入术且随访两年的眼睛进行了研究。通过角膜曲率计检查和显验光发现，85.14%的眼睛（63只）存在≥0.5屈光度（D）的角膜散光，平均为1.78±1.41 D，主要为顺规散光（77.03%）。结果表明，即使术后两年，10-0单丝尼龙缝线引起的角膜散光也并未完全消失，持续性角膜散光会影响最终的未矫正视力，且眼镜柱镜度几乎与角膜散光相等。建议必须考虑采取一些适当措施来控制后房型人工晶状体植入术后的角膜散光。
