ESCRS - FPT01.10 - Comparison Of Intraocular Lens Power Calculation Formulas In High Myopia With Negative Diopter Intraocular Lens

Comparison Of Intraocular Lens Power Calculation Formulas In High Myopia With Negative Diopter Intraocular Lens

Published 2022 - 40th Congress of the ESCRS

Reference: FPT01.10 | Type: Free paper | DOI: 10.82333/rqj0-ph92

Authors: Woong-Joo Whang* 1 , Young-Sik Yoo 1 , Kyungmin Koh 2

1The Catholic university of Korea,Seoul,Korea, Republic Of, 2Konyang university,Seoul,Korea, Republic Of

Purpose

To compare the predictive accuracy of intraocular lens (IOL) calculation formulas in highly myopic eyes after the implantation of negative diopter IOL.

Setting

Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Korea and Department of Ophthalmology, Kim’s eye Hospital, College of Medicine, Konyang University, Seoul, Korea

Methods

This study included 45 eyes of 45 patients who underwent cataract surgery with negative diopter IOL (Superflex 920H, Rayner, UK). The axial length (AL), keratometry (K), and anterior chamber (ACD) were obtained from partial coherence interferometry (IOLMaster, Carl-Zeiss, Germany). IOL power calculations were compared using the Barret Universal II, EVO 2.0, Haigis, Haigis with Wang-Koch (WK) adjustment, SRK/T, SRK/T with WK adjustment and T2 formulas.

Results

The Barret Universal II formula revealed the lowest lowest median absolute error (MedAE) of 0.76 diopter and followed by the Haigis with WK, EVO 2.0 formulas. The standard deviation (SD) of mean prediction error (ME) was smallest in EVO 2.0 formula (1.51 diopter) and followed by SRK/T with WK, Haigis with WK.

Conclusions

New formulas such as Barret Universal II and EVO 2.0 formulas performed well after the implantation of negative diopter IOL comparing with traditional formulas with WK adjustment.