智能脉冲技术辅助的角膜表层屈光手术早期临床观察

Clinical observation on the efficacy at the early stage of TPRK with assistance of smart pulse technology

目的比较智能脉冲技术辅助的经上皮准分子激光角膜切削术(transepithelial photorefractive keratectomy,TPRK)与普通TPRK矫正近视手术术后早期眼部刺激症状及视力情况。方法回顾性研究。45例(90眼)按随机数字表法分为两组:对照组22例(44眼)行普通TPRK。智能组23例(46眼)行智能TPRK。术后随访3个月。结果智能组术后眼部刺激症状较轻,术后1 d及3 d的视力恢复较对照组快,差异有统计学意义(P=0.000,0.024)。术后10 d、1个月及3个月两组间视力差异无统计学意义(P=0.277,0.504,0.164)。两组术前及术后3个月角膜地形图表面规则指数和表面非对称指数差异无统计学意义(P=0.090,0.130,0.126,0.201)。结论智能TPRK术后眼部刺激症状较轻,早期视力恢复较快。

Objective To compare the efficacy at the early stage between smart pulse technology (SPT)-assisted transepithelial photorefractive keratectomy (TPRK)and traditional TPRK for correcting of myopia.Methods The data of 90 eyes of 45 cases with myopia were retrospectively analyzed.All cases were divided into two groups randomly.The smart group,46 eyes of 23 patients,received SPT-TPRK.Contral group, 44 eyes of 22 patients,received traditional TPRK.All patients were followed up for 3 months.Results The stimulus syndrome of eye in the smart group was lighter than that in the TPRK group.After SPT-TPRK the visual acuity in the smart group was better than that at 1 and 3 days after surgery (P =0.000,0.024).The difference in visual acuity was not statistically significant between the two groups at 10 days,1 and 3 months after surgery(P =0.277,0.504,0.164).The differences of the surface regularity index (SRI)and surface asymmetry index(SAI)of topography in the two groups were statistically significant between preoperative and postoperative 3 months (P =0.090,0.130,0.126,0.201 ).Conclusion After SPT-TPRK the stimulus syndrome is Xess serious and visual acuity is better at the early stage after surgery.