ESCRS - PO640 - Comparison Of Calculation Error, Visual Acuity, And Patient Satisfaction For Different Types Of Intra Ocular Lenses: Fine Vision And Symfony.

Comparison Of Calculation Error, Visual Acuity, And Patient Satisfaction For Different Types Of Intra Ocular Lenses: Fine Vision And Symfony.

Published 2024 - 42nd Congress of the ESCRS

Reference: PO640 | Type: Free paper | DOI: 10.82333/53cb-5j55

Authors: Piotr Fryczkowski* 1 , Aleksandra Kuczyńska 1 , Michał Szot 1 , Anna Kowalik 1

1Retina Eye Hospital and Clinic,Warsaw,Poland

Purpose

Accuracy comparison of 3 generation 3 formulas (SRK/T, Holladay 1, Hoffer Q) and 3 generation 4 formulas (Haigis, Barrett Universal II Formula, Kane) for IOL Fine Vision vs Symfony. We also examined patient satisfaction, as well as the BCVA after surgery.

Setting

Introducing new types of intraocular lenses and calculation formulas to cataract surgery necessitates selecting the most accurate calculation method suited to a specific type of lens. Nowadays, the correct calculation is essential, as well as the proper selection of the patient and the patient's satisfaction after the procedure.

Methods

A retrospective analysis of the calculation accuracy in 199 eyes (107 eyes Fine Vision, 92 eyes Symfony). The material consisted of eyes: Fine Vision mean 23,72mm long, Symfony mean 23,28mm long. We compared those multifocal lenses' calculation error (Predictive Error - PE). The patient satisfaction questionnaire and BCVA were examined after 12 months. 

Results

There were no statistically significant differences between the study groups. For IOL Fine Vision IOL, the most accurate formula is Hagis (PE -0,51), Kane (PE -0,51), Barrett Universal Formula (PE -0,52). For Symfony IOL, the most accurate formula is SRKT (-0,01), Hoffer Q (-0,01), Haigis (-0,01), and Kane (0,01). Mean SE after surgery was: Fine Vision -1,27, Symfony -0,04. BCVA [LogMar] after surgery for Fine Vision IOL was below 0,21 for 79,6% of patients for Symfony IOL was below 0,21 for 90,3% of patients. 73,7% of patients with the Fine Vision lens and 78% with the Symfony IOL achieved complete independence from glasses. Glare and halo effects was observed for 40% of patients with Fine Vision and 80% in patients with Symfony.

Conclusions

Our analysis shows that the most accurate formula for Fine Vision (trifocal IOL) IOL is the 4th-generation formula. In terms of clinical practice for Fine Vision and Symfony IOL more than 79 % obtain Visus after surgery lower than 0,21 LogMar.