摘要
目的探讨VISX S4准分子激光不同角膜切削模式联合LASIK治疗超高度近视的临床效果。方法临床回顾性对照分析研究。选择2005年11月至2006年12月在120例(216只眼)超高度近视LASIK矫正,运用VISX S4准分子激光,根据不同的切削模式联合分为ESB组(M Ellipse+M Sphere+M Blend)74眼、ART(Advanced Refractive Treatment)组(M Ellipse—APA+M Sphere Zonel—APA+M Sphere Zone2-APA)70眼、ESS组(M Ellipse+Muhizone M Sphere Zonel+Multizone M Sphere Zone2)组72眼.分析各组的角膜切削、术后视力与屈光以及并发症。结果(1)角膜平面屈光改变等效球镜1D,ESB组需切削角膜(13.32±1.42)IXm,ART组切削角膜(7.66±1.10)μm,ESS模式组切削角膜(12.27±0.48)μm。(2)随访1年,术后裸眼视力均较术前提高,术后1个月内均达到术前最佳矫正视力或以上;术后3个月视力趋于稳定;术后最佳矫正视力均无丢失两行以上;术后3个月屈光等效球镜均在±0.50 D内。(3)术后眩光发生率:ESB组2只眼(2.7%),ART组4只眼(5.7%),ESS组2只眼(2.8%),均在术后6个月后缓解;术后角膜地形图分析均未发现偏中心切削;术后3个月屈光回退率:ESB组3只眼(4.1%),ART组3只眼(4.3%),ESS组2只眼(2.7%)。结论VISX S4准分子激光能根据不同的屈光度与角膜厚度自动选择联合不同的切削模式治疗超高度近视具有可预测性、有效性、稳定性及安全性;其中ART模式节省角膜组织有利于薄角膜超高度近视的屈光矫正,但视觉质量值得商榷。
Objective To evaluate the clinical effects of Laser in situ keratomileusis (LASIK) with different ablation patterns united for ultra-high myopia using VISX S4 excimer laser. Methods Retrospectively analyzed 120 ultra-high myopia patients (216 eyes) corrected by LASIK using VISX S4 excimer laser, depended on the ablation pattern, divided them into the ESB group (M Ellipse+ M Sphere +M Blend) in 74 eyes, ART (Advanced Refractive Treatment) group (M Ellipse-APA+ M Sphere Zonel-APA+ M Sphere Zone2-APA) in 70 eyes and ESS group (M Ellipse+ Multizone M Sphere Zonel +Multizone M Sphere Zone2) in 72 eyes. Corneal ablation, vision and postoperative complications and refraction were analyzed. Results (1) spherical equivalent refractive (SEQ) changed 1D in cornea plane: ESB group cut cornea (13.32 ± 1.42) μm, ART group (7.66 ± 1.10) μm, and BSS group (12.27 ±0.48) μ m. (2) follow-up visited 1 year, uncorrected visual acuity (UCVA) increased after LASIK, UCVA increased to preoperative best corrected visual acuity (BCVA) or more in postoperative 1 month, UCVA stabilized in 3 months, BCVA was not lost 2 or more lines of visual acuity on the letter chart; SEQ of three groups were ,within + 0.50D in postoperative 3 months. (3) postoperative glare rate: ESB group 2 eyes (2.7%), ART group 4 eyes (5.7%), ESS group 2 eyes (2.8%), and relieved after 6 months; topography analysis found no eccentric ablation; refractive regres-sion rate after 3 months: ESB group 3 eyes (4.1%), ART group 3 eyes (4.3%), ESS group 2 eyes (2.7%). Conclusions Based on different refraction and corneal thickness, VISX S4 excimer laser automatically choose the different ablation patterns for ultra-high myopia with predictability, effectiveness, stability and security; which ART ablation pattern saves corneal tissue to benefit to ultra-high myopia refractive correction in ultra-thin cornea, but the visual quality is questionable.
出处
《中国实用眼科杂志》
CSCD
北大核心
2011年第9期895-898,共4页
Chinese Journal of Practical Ophthalmology