Physiological Lens Decentration Of The Phakic Eye: The 5000 Eye Study
Published 2023 - 41st Congress of the ESCRS
Reference: FP05.09 | Type: Free paper | DOI: 10.82333/te1w-1v96
Authors: Peter Laubichler* 1 , Nino Hirnschall 1 , Haidar Khalil 1 , Theresa Höftberger 1 , Matthias Bolz 1
1Ophthalmology,Kepler University Clinic and Johannes Kepler University,Linz,Austria
Purpose
Accurate prediction of the post-operative intraocular lens (IOL) decentration could improve intraocular lens (IOL) power calculation significantly. Aim of this study was to use Bayesian statistics and a large data set to predict lens decentration of the phakic eye.
Setting
Department of Ophthalmology and Optometry at the Kepler University Clinic Linz, Austria.
Methods
This epidemiological study included patient data collected between June 2020 and October 2022. Requested measurements were two different ss-OCT measurements (IOLMaster700 and Casia2) to investigate on axial eye length, anterior chamber depth, corneal radii, angle-to-angle distance and lens thickness and their influence on physiological lens decentration. Statistical analysis included a descriptive analysis as well as Bayesian statistics.
Results
In total, 5302 phakic eyes were included in this study. Mean decentration was 0.2 mm (SD: 0.1; median: 0.2; range: 0.0 to 1.6), respectively. A decentration of more than 0.4 mm was found in 6.7% (355 cases) of all cases. A Bayesian approach to predict lens decentration will be presented at the ESCRS meeting.
Conclusions
Bayesian statistics helps to predict lens decentration and correlation between different anatomical distances in the eye and lens decentration was found to be high. Predicting the lens diameter is a significant step to improve IOL power calculation.