摘要
为评估非球面切削准分子激光原位角膜磨镶术（ＬＡＳＩＫ）治疗－１０Ｄ以上高度近视的有效性及安全性。采用ＳＣＭＤ气动式角膜切割刀及ＳＣＨＷＩＮＤＫＥＲＡＴＯＭ—Ｆ型准分子激光系统，利用Ｕｌｔｒａｖｉｓｉｏｎ非球面切削程序对－１０Ｄ以上高度近视（等值球镜－１０．２５～－３０．００Ｄ）１１７例１８０只眼行ＬＡＳＩＫ手术，其中屈光度－１０．２５Ｄ～－１５．００Ｄ（Ａ组，超高度近视）７８只眼，平均－１２．６２±１．５２Ｄ；屈光度－１５．５０Ｄ～－３０．００Ｄ（Ｂ组，极高度近视）１０２只眼，平均－１９．１８±３．３８Ｄ。术后随访观察６个月以上。结果：术后６个月裸眼视力≥１．０者Ａ、Ｂ二组分别达５７．７％及２５．５％，裸眼视力≥０．５者分别达９４．９％及７６．５％；屈光度在±１．００Ｄ以内的分别达４１．０％及１９．６％，在±３．００Ｄ以内的分别达８３．３％及５１．０％。Ａ、Ｂ二组各有１眼（分别占１．３％及１．０％）术后３个月有黄斑出血，６个月时的最佳矫正视力与术前相比，低于２行以上。结论：非球面切削ＬＡＳＩＫ手术对于矫治－１０Ｄ以上高度近视有很好的疗效，影响手术安全性的主要因素为视网膜并发症。
Objective:To study the efficacy and safety of aspherical keratectomy excimer laser in situ keratomileusis for correction of myopia higher than -10D.Methods:We studied 180 eyes of 117 patients with high myopia of spherical equivalent of -10 25D to -30 00D who received aspherical keratectomy LASIK with SCMD microkeratome and SCHWIND KERATOM F excimer laser system.The eyes were divided into two groups,group A(spherical equivalent of -10 25D to -15 00D,average -12 62±1 52D)78 eyes and group B(spherical equivalent of -15 50D to -30 00D,average -19 18±3 38D)102 eyes.All patients have been followed up for 6 months or longer.Results: Six months after surgery,uncorrected visual acuity was 1 0 or better in 45 eyes of group A (47 6%) and 26 eyes of group B(25 5%).0 5 or better in 74 eyes of group A (94 9%)and 78 eyes of group B(76 5%).In group A and B,32 eyes (41 0%) and 20 eyes (19 6%) had a refraction within ±1 00D;65 eyes (83 3%) and 52 eyes (51 0%) had a refraction within ±3 00D.In group A and B,loss of 2 or more lines of best corrected visual acuity was observed in 1 3% and 1 0% eyes with maculae heamorrhage.Couclusion:Aspherical keratectomy LASIK is an effective and good method to correct myopia higher than -10D,with minimal complications.The factors affecting the safety of surgery are retinal complications.
出处
《中国实用眼科杂志》
CSCD
1998年第11期684-686,共3页
Chinese Journal of Practical Ophthalmology
