Influence Of Preoperative Biometric Data On Postoperative Rotational Stability Of Toric Intraocular Lenses

Published 2024 - 42nd Congress of the ESCRS

Reference: FP27.10 | Type: Free paper | DOI: 10.82333/qmkd-j172

Authors: Gilles Lesieur* ¹ , Paul Dupeyre ¹

¹Ophthalmology,Centre Iridis,Albi,France

Purpose

To investigate the impact of preoperative biometric data, on the postoperative rotational stability of toric intraocular lenses (IOLs).

Setting

Centre Ophtalmologique IRIDIS, Albi, France.

Methods

Patients who underwent crystalline lens surgery with the Lucidis 124MT extended depth of focus (EDOF) intraocular lens (IOL) from SAV-IOL, Switzerland, between November 2020 and April 2023 were included in this study. Postoperative rotational stability was systematically measured through direct pupillary dilation examination using a 1.5 to 3-month follow-up protocol. The measurements were conducted using a protractor. Correlation coefficients were established between postoperative rotation and preoperative biometric measurements, including axial length (AL), lens thickness (LT), anterior chamber depth (ACD), corneal astigmatism, white-to-white (W2W) distance, and demographic data of the patients.

Results

A total of 927 eyes were included in the analysis, with a mean patient age of 77.1 years (range 48-96). The average postoperative rotation was 2.68° +/- 2.8° (range 0-21°). In multivariate analysis, no correlation was found between postoperative rotation and demographic factors (sex, age, operated eye) or biometric measurements, including axial length (AL) and white-to-white (WTW) distance. However, LT (β=0.71, [0.1; 1.32], p= 0.0236) was identified as the sole factor associated with higher levels of rotation. This suggests that preoperative LT measurements or capsular bag dimension may play a significant role in predicting the rotational stability of toric intraocular lenses (IOLs) postoperatively.

Conclusions

Lens thickness emerges as a key predictor of toric IOL rotational stability. Preoperative LT assessment, or potentially capsular bag dimensions, is crucial for optimal outcomes. Ongoing research with direct capsular bag measurements will aid surgeons in selecting implant size and design based on these parameters.