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

Abstract

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.

Keywords

• cataract
• long axis eyes
• short axis eyes
• eye parameter measuring instrument
• intraocular lens power formula