不同切削模式LASIK治疗中高度复性近视散光疗效  

Excimer Laser in different ablation model for moderate and high compound myopic astigmatism

作　　者：刘兵[1] 陈威[1] 邵德望[1] 文香[1] 张梅[1] 

机构地区：[1]解放军空军总医院眼科,北京100142

出　　处：《中国实用眼科杂志》2010年第7期760-762,共3页Chinese Journal of Practical Ophthalmology

摘　　要：目的 评价不同切削模式LASIK治疗中高度复性近视散光的疗效.方法 应用美国雷赛LSX准分子激光机（5.3版）进行LASIK手术,常规球柱切削模式组（23只眼）,术前平均裸眼视力（UCVA）：0.15±0.09,球镜度数：（-4.40±2.07）D,柱镜度数（-2.42±0.47）D,随访时间（6.04±3.74）月;椭球切削模式组（33只眼）,UCVA：0.13±0.05,球镜度数（-5.43±2.26）D,柱镜度数（-2.71±0.76）D,随访时间（6.91±5.10）月.结果 两组术后UCVA分别为1.11±0.17和1.05±0.10,球镜度数（-0.17±-0.77）D和（-0.18±0.89）D,柱镜度数（-0.62±0.39）D和（-0.64±0.68）D,两组间差异无统计学意义（P〉0.05）,术后Q值：0.60±0.35和0.29±0.59,两组间差异具有统计学意义（P〈0.05）.结论 LASIK 两种切削模式治疗中高度复性近视散光疗效确切、稳定,椭球型切削模式术后Q值更容易维持术前负性特征.Objective To determine the safety and efficacy of laser in situ keratomileusis （LASIK） in standard sphere/cylindrical or ellipsoidal ablation model to treat moderate and high compound myopic astigmatism. Methods The LaserSight SLX laser （5.3 software） was used in LASIK. In standard sphere/cylindrical ablation model group （23 eyes）, the preoperative mean uncorrected visual acuity （UCVA） was 0.155： 0.09,sphere -4.40± 2.07D, cylinder -2.42± 0.47D, the final follow-up 6.04± 3.74 months. In ellipsoidal ablation model group （33 eyes）, the UCVA was 0.13± 0.05, sphere -5.43±2.26D, cylinder-2.71± 0.76D, the final follow-up 6.91± 5.10 months. Results In two groups, the UCVA was 1.11± 0.17 and 1.05± 0.10, sphere -0.17± 0.77D and-0.18± 0.89, cylinder-0.62± 0.39D and-0.64± 0.68, respectively. No statistical different was found （P 〉 0.05 ）. However, the postoperatively mean corneal asphericity （Q-value） was 0.60± 0.35 in sphere/cylindrical group and 0.29± 0.5928.1% （9/32） in ellipsoidai group with statistical difference. Conclusions LASIK using the LaserSight SLX excimer laser （5.3 software） in standard sphere/cylindrical or custom ellipsoidal ablation model is effective and stable for moderate and high compound myopic astigmatism. The postoperative Q-value in ellipsoidal ablation model is easier to maintain preoperatively negative characteristic.

关 键 词：复性近视散光 LASIK 角膜非球面系数Q值 

分 类 号：R778.13[医药卫生—眼科]