【摘要】 目的:观察成人屈光不正性弱视患者的准分子激光原位角膜磨镶术的治疗效果。方法:弱视患者141例(188眼),包括单纯中低度近视21例(24眼)、单纯高度近视36例(44眼)、复合近视散光84例(120眼),回顾性观察这些患者的LASIK手术治疗效果。结果:单纯中低度近视、单纯高度近视、复合近视散光患者术后视力高于术前最佳矫正视力的眼数分别为10眼,27眼,77眼;超常率分别为41.7%,61.4%和64.2%。部分患者LASIK术后视力高于术前最佳矫正视力,其中对单纯高度近视和复合近视散光类患者效果最佳。结论:LASIK手术能有效的治疗弱视患者的屈光不正。
【关键词】 弱视;准分子激光原位角膜磨镶术;成人;屈光不正
Effect of LASIK surgery on adult patients with ametropic amblyopia
BaoWen Gu, HuaSheng Zhou, LinLi Wang, JianRong Hu, ZongHui Yan, Mian Sun
Foundation item:Fund of Science and Technology Bureau of Shenzhen City, Guangdong Province, China(No.200702086) 1Shenzhen Eye Hospital Affiliated to Jinan University, Shenzhen 518001, Guangdong Province, China;2Department of Ophthalmology, Shenzhen Women and Children Healthcare Hospital, Shenzhen 518028, Guangdong Province, China
Correspondence to:BaoWen Gu.Shenzhen Eye Hospital Affiliated to Jinan University Shenzhen 518001, Guangdong Province, [email protected]
AbstractAIM: To observe the LASIK effect on adult patients with ametropic amblyopia. METHODS:There were 141 amblyopic patients (188 eyes), including simple lowmoderate myopia 21cases (24 eyes), simple high myopia 36 cases (44 eyes), compound myopia astigmatism 84 cases (120 eyes). LASIK effect of them were analyzed retrospectively.RESULTS: The percent age of postoperative visual acuity better than preoperative best corrected visual acuity (BCVA) in simple lowmoderate myopia group, simple high myopia group and compound myopia group were 41.7% (10 eyes), 61.4% (27 eyes) and 64.2% (77 eyes) respectively. The results showed that the postoperative visual acuity in part of them were better than preoperative BCVA, and the effects were especially good in simple high myopia and compound myopia astigmatism groups.CONCLUSION: LASIK surgery can effectivey treat the ametropia of amblyopic patients. KEYWORDS: amblyopia; LASIK; adult; ametropia
引言
准分子激光原位角膜磨镶术(LASIK)术前检查时,常常遇见一些弱视即视力矫正不良的患者。理论上说,LASIK的最好效果是术后视力达到术前最佳矫正视力。但在临床上,我们发现很大一部分病例术后视力超出了术前最佳矫正视力。为此,本文将我院188眼术前弱视患者的LASIK手术效果进行回顾性研究,现报告如下。
1对象和方法
1.1对象
选择200112/200508术前视力矫正不良即弱视的LASIK手术141例(188眼),即术前最佳矫正视力低于0.8。将受术者分成3组。单纯中低度近视21例(24眼),右11眼,左13眼。包括男11例,女9例,年龄19~49(平均24.9)岁,术前屈光度1.50~5.75D,平均3.81D。单纯高度近视36例(44眼),右21眼,左23眼;包括男12例,女24例,年龄18~49(平均26.5)岁,术前屈光度6.00~15.25D,平均8.58D。复合近视散光84例(120眼),右68眼,左52眼。包括男37例,女47例,年龄18~47(平均28.5)岁,术前球镜屈光度0.50~16.75D,平均7.21D,散光0.50~5.00D,平均1.70D。诊断标准:如球镜屈光度<6.00D,散光< 0.50D为单纯中低度近视;如球镜屈光度≥6.00D,散光< 0.50D为高度近视;当眼不用调节时,平行光线入眼后,在二主要子午线上所成的焦点都在视网膜前面为复合近视散光,本文选择的散光度须≥ 0.50D。所有患者均排除眼前节和眼底疾患,黄斑中心凹反光存在,无内外斜视的发生。
1.2方法
所有患者均采用德国Wavelight公司Allegretto 1007型准分子激光仪,能量1.60mj,光斑直径 0.95mm,脉冲频率400Hz,设置切削区为6.0~6.5mm。同时采用Moria CB 旋转式角膜板层刀,角膜瓣厚度130μm,角膜瓣蒂部均位于上方。
统计学处理:统计数据采用SPSS样本均数配对t检验和χ2检验处理。
2结果
2.1手术前后视力比较
将单纯中低度近视、单纯高度近视和复合近视散光患者手术前与手术后1mo视力分别进行比较,并进行配对样本t检验(表1),结果显示单纯中低度近视手术前后视力无显著性差异,而其余两组手术前后视力显著性差异。表1 三组患者手术前后视力比较(略)
2.2三组患者术后视力超常率的比较
单纯中低度近视、单纯高度近视、复合近视散光患者术后视力高于术前最佳矫正视力的眼数分别为10眼,27眼,77眼;超常率分别为41.7%,61.4%和64.2%,经χ2检验,χ2值为4.26,P>0.05,说明3组患者术后视力超出术前的比率无显著性差异。而两两组间比较,单纯中低度近视与单纯高度近视、复合近视散光患者之间具有差异性,而单纯高度近视、复合近视散光患者之间无显著性差异。
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