摘要
目的探讨准分子激光二次切削对近视性角膜切削术欠矫的疗效。方法对23例（30眼）准分子激光角膜切削术后欠矫而采用光学性角膜切削术，术前平均屈光度为－8．888D（－3．5—－15．5D），其中4眼为中度近视（－3．25～－6．00D），8眼为高度近视（－6．25～－9．00D），18眼为超高度近视（≥－9．25D）。结果术后平均随访13．4月表明，70％的裸眼视力≥1．0。0．5≤9眼（30％）的裸眼视力＜1．0，平均屈光度－0．333±0．603D。角膜混浊与一次术后相近。结论 准分子激光二次切削治疗近视性角膜切削术后欠矫有效。
Discuss the curative effect of photorefractive keratectomy(PRK) for myopia required retreatment because of undercorrected. Methods Twenty three patients (30 eyes)treated by photorefractive keratectomy (PRK) for myopia required retreatment because of undercorrected. The mean preoperative refraction of these eyes had - 8. 888D (range - 3. 5 ~ - 15. 5D). No eyes before photorefractive keratectomy had low myopia .four eyes had myopia between - 3. 25 and - 6. 00D,eight eyes had myopia between - 6. 25 and - 9. 00D, 18eyes had more than -9. 00D of myopia. Results At the average 13. 4 month after retreatment, percentages of uncorrected visual acuity≥1.0 were 70%,percntage between 0. 5 and 1.0 were 30%. The mean preoperative refraction were - 0. 333 ±0. 603D, and corneal hazes were as the same as the first treatment. Conclusion Retreatment is an safe and effective procedure for regression.
出处
《临床眼科杂志》
1998年第6期370-371,共2页
Journal of Clinical Ophthalmology
