摘要
目的:回顾性分析准分子激光原位角膜磨镶术(LASIK)术后视力下降的原因,并初步探讨处理和预防措施。方法:收集LASIK术后视力下降病例134例175眼,统计各种原因的构成比,分别将治疗前后的UCVA进行配对t检验。结果:LASIK术后视力下降的总体发生率为1.86%,其中屈光回退的构成比为51.43%,治疗后UCVA由0.61±0.22上升为0.90±0.38(t=8.00,P<0.001);角膜上皮点状缺损构成比为32.57%,治疗后UCVA由0.60±0.19上升为1.20±0.24(t=20.00,P<0.001);调节痉挛构成比为5.14%,治疗后UCVA由0.76±0.21上升为1.32±0.22(t=8.14,P<0.001);角膜瓣移位和皱褶构成比为4%,治疗后UCVA由0.29±0.26上升为1.24±0.28(t=6.33,P<0.001);激素性高眼压构成比为4%,治疗后UCVA由0.57±0.05上升为1.0±0.16(t=2.53,P<0.05);眼底病变和弥漫性板层角膜炎(diffuse lamellar keratitis,DLK)构成比共为2.86%,经治疗后UCVA均有不同程度提高。结论:LASIK术后视力下降的原因多种多样,及时发现和处理可获得良好疗效,恰当的预防措施也必不可少。
To analyze the reasons of impaired vision after LASlK and explore its preventive treatment measures preliminarily.METHODS： ln this retrospective study, 175 eyes of 134 patients whose vision was decreased after LASlK were included. The constituent ratio of every reason was counted and uncorrected visual acuity （ UCVA ） between pre-treatment and post-treatment were compared by paired t-test respectively.RESULTS：The overall incidence of impaired vision after LASlK was 1. 86%. The constituent ratio of regression was 51. 43% and UCVA increased from 0. 61±0. 22 to 0. 90±0. 38 （t=8. 00, P〈0. 001） after treatment. The constituent ratio of punctate corneal epithelial defect was 32. 57% and UCVA increased from 0. 60±0. 19 to 1. 20±0. 24 （t=20. 00, P〈0. 001 ） after treatment. The constituent ratio of accommodative spasm was 5. 14% and UCVA increased from 0.76±0. 21 to 1. 32±0. 22 （t=8. 14, P〈0. 001） after treatment. The constituent ratio of corneal flap shift and gauffer was 4% and UCVA increased from 0. 29 ± 0. 26 to 1. 24 ± 0. 28 （ t = 6. 33, P〈0. 001 ） after treatment. The constituent ratio of corticosteroid - induced ocular hypertension was 4% and UCVA increased from 0. 57±0. 05 to 1. 0 ± 0. 16 （ t= 2. 53, P〈0. 05 ） after treatment. The constituent ratio of fundus lesions and diffuse lamellar keratitis （ DLK） was 2. 86% and UCVA all increased by different degrees after treatment.CONCLUSlON： The reasons of impaired vision after LASlK are many and varied. These cases could recover their vision by discovery and treatment in time, and the appropriate preventive measures were essential.
出处
《国际眼科杂志》
CAS
2015年第2期307-310,共4页
International Eye Science
