非正常眼轴眼前节参数测量和IOL度数计算公式研究进展

Research progress on the measurement of anterior segment parameter and calculation formula of IOL power of abnormal eye axis

屈光性白内障手术的良好效果取决于多种因素,主要包括术前精确的生物测量和人工晶状体(IOL)度数的准确计算。非正常眼轴术前眼部生物测量精确性较低,且术后屈光状态预测与正常眼轴眼相比误差较大,这为获得术后最佳视觉质量带来了很大挑战。近期,新型光学生物测量仪的临床应用,个体化的IOL度数计算公式的研发和应用,使IOL度数选择更加精确。本文针对非正常眼轴白内障患者术前眼部参数测量及IOL度数计算公式的选择近3a最新相关研究进展进行综述,以期为临床应用提供参考。

The good effect of refractive cataract surgery depends on a variety of factors,mainly including accuratebiometrics before surgery and accurate calculation of intraocular lens(IOL)power.The accuracy of intraocular biometrics with abnormal eyes axis before surgery is lower.Moreover,compared with the normal eyes axis,the error of postoperative refractive state prediction is larger,which brings great challenges to obtaining the best postoperative visual quality.Recently,new optical biometrics have been used clinically,and individualized IOL power calculation formulas have been developed and applied,which makes the choice of intraocular lens power more accurate.This article reviews the latest research progress on the measurement of eye parameters and the selection of IOL power calculation formula in patients with abnormal axial cataract in the past 3a,in order to provide reference for clinical application.