OPD-Scan像差仪在选择人工晶状体的意义

The Significance of OPD-Scan Aberration Instrument in the Selection of Intraocular Lens

目的:探讨OPD-Scan像差仪在选择人工晶状体(IOL)中的临床意义。方法:选择执行超声乳化联合IOL植入的100例白内障患者,共计120眼。根据IOL类型分组,分为球面IOL组、非球面IOL组。分别在术前1d与术后3个月进行角膜波阵面像差检查,观察患者指标变化。结果:Zernik系数1-27项中,Z4、Z9、Z12、Z24呈降低趋势(P<0.05);术后RMS1-6、RMSg、RMSh呈降低趋势(P<0.05);术后非球面IOL组RMS3、RMS4、RMS5、RMSg、RMSh相对于球面IOL组更小(P<0.05);非球面IOL组在术后的LogMAR视力优于球面IOL组(P<0.05)。结论:针对白内障手术患者通过植入非球面IOL,发现在术后RMS1-6、RMSg、RMSh像差相对于术前有所减小,像差测量有助于选择适合的IOL。

Objective:To explore the significance of OPD-Scan aberrometer in selecting intraocular lens.Methods:100 cataract patients(120 eyes)who underwent phacoemulsification and intraocular lens implantation were selected.According to IOL types,they were divided into spherical IOL group and aspherical IOL group.Corneal wavefront aberration was examined 1 day before operation and 3 months after operation respectively,and the changes of patients’indexes were observed.Results:Among Zernik coefficients 1-27,Z4,Z9,Z12 and Z24 showed a decreasing trend(P<0.05).RMS1-6,RMSg and RMSh decreased after operation(P<0.05).RMS3,RMS4,RMS5,RMSg and RMSh in aspheric IOL group after operation were smaller than those in spherical IOL group(P<0.05).The postoperative LogMAR vision of aspheric IOL group was better than that of spherical IOL group(P<0.05).Conclusion:It is found that the aberrations of RMS 1-6,RMSg and RMSh are reduced after cataract surgery by implanting aspherical intraocular lens,and aberration measurement is helpful to choose suitable intraocular lens.