准分子激光治疗近视眼的初步报告

A preliminary report of photorefractive keratectomy for correction of myopic

目的：报告采用准分子激光切削术治疗近视散光５５例１０４只眼的初步疗效结果。方法：应用ＮＩＤＥＫＥＣ—５０００准分子激光系统对５５例近视散光进行手术治疗。１０４只眼按近视程度分组：Ａ组（≤—６．００Ｄ），Ｂ组（－６．２５Ｄ～－１０．００Ｄ），Ｃ组（＞－１０．２５Ｄ）。结果：术后观察６个月，各组平均裸眼视力均显著提高，实际矫正度在预测矫正度±１．００Ｄ范围内者分别占９７．５０％、９１．３０％及７７．７８％，超高度近视与中、高度近视相比Ｐ＞０．０５差异无显著性。结论：ＰＲＫ技术不仅对低、中度近视，而且对－１０．２５Ｄ～－１３．００Ｄ高度近视也具有良好的治疗效果。

Objective: 104 eyes of 55 cases with combined myopia and astigmatism were beated by photorefractive keratec-tomy(PRK).The preliminary result were reported. Metheds: NIDEK EC-5000 excimer laser was used. According to thepieoporative myopia, 104 eyes were divided into group A(≤-6.00D),B(-6.25D ~ -10.00D) and C(>-10.25D)and treated with PRK. Results: At the 6 month petoporative follow-up, the mean uncorrected visual acnity was iniprovedsigruficanily in the three groups.In low myopia, 97.50% of eyes were within ±1.00D of emmetrupia;in mederate myopia,91.30% of eyes were within ±1.00D of emmetropia,in extreme myopia,77.78% of eyes were within ±1.00D of em-metropia bto the different was statistically not signicant(P>0.05). Conclusions: Excimer laser PRK is reasonably effectivein treatment of low.moderate and greater myopia.