[关键词]
[摘要]
白内障手术的效果受多种因素的影响，如术前生物学参数的测量、人工晶状体屈光力计算公式的选择、手术方式及手术技巧等。眼轴长度是计算人工晶状体屈光力的重要参数，目前测量眼轴长度的主要方法是超声生物测量法及光学生物测量法，这两种方法各有利弊，相辅相成。人工晶状体屈光力的计算公式在过去的几十年里不断更新，在近几年更是出现了很多新的计算公式，如Barrett Universal Ⅱ(BUⅡ)公式、Kane公式、Olsen公式、Hill-radial basis function(Hill-RBF)公式等。本文主要总结了两种眼轴长度测量方法的利弊，并比较不同人工晶状体屈光力计算公式在不同眼轴长度时的准确性。
[Key word]
[Abstract]
The effect of cataract surgery is affected by various factors, such as the measurement of preoperative biological parameters, the formula for calculating refractive force of intraocular lens(IOL), surgical methods and surgical techniques. The axial length(AL)is an important parameter for calculating the refractive force of IOL. At present, the main methods of measuring AL are ultrasonic biometry and optical biometry, and these two methods have their own advantages and disadvantages and complement each other. The calculation formula of refractive force of IOL has been continuously updated in the past decades. In recent years, many new calculation formulas have appeared, such as the Barrett Universal Ⅱ formula(BUⅡ), the Kane formula, the Olsen formula, the Hill-radial basis function(Hill-RBF)formula, etc. This paper mainly summarizes the advantages and disadvantages of the two AL measurements, and compares the accuracy of the IOL refractive force calculation formula at different AL.
[中图分类号]
[基金项目]
国家自然科学基金资助项目(No.81670860); 重庆市自然科学基金项目(No.cstc2018jcyjAX0034)
