摘要
目的:评价目标Q值=-0.9引导的准分子激光原位角膜磨镶术(LASIK)治疗近视的临床疗效。方法:应用美国雷赛LSX准分子激光机(5.3版),采用AstraPro Planner2.2Q个体化软件,术中目标Q值设定为-0.9,行LASIK手术共治疗53例(106眼)近视患者,同时随机选取2005年常规LASIK手术患者51例(102眼)做为对照组。观察手术前及术后6mo的视力、屈光度、As-tramax角膜地形图测量的Q值的变化(瞳孔中心4.5mm直径范围),并进行分析。结果:在Q值优化组,术前裸眼视力为0.11±0.05,平均等效球镜(SE)为-6.57±1.81D(-3.49^-11.80D),术前Q值为-0.14±0.15(-0.56~0.26),术后6mo裸眼视力为1.14±0.15,平均等效球镜(SE)为0.37±0.58D,术后Q值为0.20±0.40(-0.80~1.48)。标准切削对照组:术前裸眼视力为0.13±0.06,平均等效球镜(SE)为-5.99±2.53D(-1.44^-12.31D),术前的Q值为-0.16±0.14(-0.50~0.21),术后裸眼视力为1.13±0.20,平均等效球镜为-0.46±0.87D,术后Q值为0.56±0.45(-0.53~2.03)。所有术眼术中术后未见威胁视力的并发症发生。两组术后裸眼视力无显著性差异,但是Q值优化组术后Q值显著低于对照组。结论:应用美国雷赛SLX型(5.3版)激光机,AstraProPlanner2.2Q个体化软件,进行目标Q值为-0.9引导的LASIK个体化切削术治疗近视安全、疗效确切、稳定,效果满意。Q值优化的LASIK较常规切削可减少术后Q值的增加,更好的维持角膜表面生理形态。
AIM. To determine the clinical results of target Qvalue =-0. 9 adjusted customized laser in situ keratomileusis （LASIK） to treat myopia.
METHODS. A total of 106 consecutive eyes of 53 patients were treated with AstraPro Planner 2. 2 Q ablation planning software using the laserSight SLX laser （5.3） as Q-value customized group. The target Q-value = -0.9 was designed. Other 102 eyes of 51 patients with standard ablation in 2005 were enrolled in a control group. Visual acuity, refraction, and Q-value changes （4.5mm diameter zone of pupil center） with Astramax topographer were observed and analyzed at preoperative and 6 month postoperative visit.
RESULTS, In Q-value customized group, preoperative uncorrected visual acuity （UCVA） was 0.11± 0.05, mean spherical equivalent （SE） was -6.57 ± 1.81D（-3.49- 11.80D）, and Q-value was -0. 141 ± 0. 148 （ -0.56-0.26 ）. At 6 months after operation, the above results were 1.135 ± 0.15, 0.37 ±0.58D, and 0. 197 ± 0. 402（-0. 795-1. 485）, respectively. In standard ablation control group, preoperative and postoperative UCVA, SE, and Q-value were 0.13 ±0.06,-5.99 ± 2.53（-1.44-12,31 ） D, -0.155 ± 0. 139（-0.503-0.206） ,and 1. 129 ± 0. 196 ,-0.46 ±0. 87D, 0. 561 ±0. 453 （-0. 53-2. 026）, respectively. No vision threatening complications were observed. There was no statistical difference between the two groups in terms of postoperative UCVA. Then postoperative Q-value in Qvalue customized group was statistically lower than that in control group.
CONCLUSION ： Target Q-value = -0.9 customized LASIK with AstraPro Planner 2.2 Q ablation planning software using the laserSight SLX laser is safe, effective, stable, and satisfied for the correction of myopia. Q-value adjusted LASIK induces a smaller increment of postoperative Q-value, and better maintains the physiology of the corneal surface than standard oblation.
出处
《国际眼科杂志》
CAS
2008年第8期1629-1631,共3页
International Eye Science
