【摘要】 目的探讨硅油眼眼轴长度的测量方法,评价IOL Master测量硅油眼眼轴长度的准确性。方法选择2009年1月至2010年1月于我院行玻璃体切割联合硅油填充术患者26例(30眼),术前1d分别应用接触式A超和IOLMaster测量眼轴长度,用SRK/T公式计算IOL屈光度。于术后1个月,IOLMaster复测眼轴长度,比较三者眼轴长度的差异,并观察患者的屈光状态。结果应用接触式A超测得的眼轴长度为(24.01±2.62)mm,应用IOLMaster术前和术后所测得的眼轴长度分别为(24.23±2.91)mm、(24.38±3.18)mm,差异无统计学意义(χ2=2.684,P=0.261)。植入IOL且取出硅油的患者6例(7眼)根据术前接触式A超测算的预测屈光误差(mean predictive error,MPE)为(0.45±0.43)D,绝对屈光误差(mean absolute error,MAE)为(0.51±0.36)D,根据术前IOLMaster测算的MPE为(0.19±0.39)D,MAE为(0.33±0.26)D,根据硅油填充术后IOLMaster测算MPE和MAE分别为(0.11±0.35)D、(0.29±0.20)D,三者差异均无统计学意义(均为P>0.05)。结论 IOLMas-ter能准确测量硅油眼的眼轴长度,有无硅油不影响其测量结果。更多还原

【Abstract】 Objective To discuss the measurements of axial length(AL) in silicone oil-filled eye,and evaluate the accuracy of AL measured by IOL Master.Methods Thirty eyes of 26 patients with vitrectomy and silicone oil tamponade in Tianjin Medical University Eye Centre were enrolled.IOL Master and contact A-scan was performed to measure the AL at 1 day before surgery,and intraocular lens power was calculated with the SRK/T formula.At 1 month after surgery,AL was measured by IOL Master again.The AL measurements by IOL Master(before and after surgery) and contact A-scan were compared,and the refractive outcomes were followed up.Results AL measured by contact A-scan was(24.01±2.62)mm,and by IOL Master before and after surgery were(24.23±2.91)mm and(24.38±3.18)mm,there was no statistical difference(χ2=2.684,P=0.261).The mean predictive error and mean absolute refractive error for 7 eyes of 6 patients underwent silicone oil removal and intraocular lens implantation were(0.45±0.43)D and(0.51±0.36)D by contact A-scan,which were(0.19±0.39)D and(0.33±0.26)D by IOL Master before surgery,(0.11±0.35)D and(0.29±0.20)D by IOL Master after surgery,respectively,there was no statistical difference(all P>0.05).Conclusion IOL Master can precisely measure the AL in silicone oil-filled eye,and presence or absence of silicone oil tamponade does not influence its results.更多还原