Predicting Intraocular Lens Tilt Using Optical Coherence Tomography Scans And Additional Biometric Parameters
Published 2025 - 43rd Congress of the ESCRS
Reference: PP23.11 | Type: Free paper | DOI: 10.82333/82f5-sn72
Authors: Sang-Mok Lee* 1 , Si-Hoon Park 2 , Tae Keun Yoo 2 , Jae Hyoung Park 2 , Beom Jin Cho 1 , Kee Yong Choi 2
1Hangil Eye Hospital,Incheon,Korea, Republic Of;Catholic Kwandong University College of Medicine,Incheon,Korea, Republic Of, 2Hangil Eye Hospital,Incheon,Korea, Republic Of
Purpose
Aim of this study was to predict intraocular lens tilt using high resolution OCT images and additional biometric data, such as lens diameter.
Setting
Department of Ophthalmology, Kepler University Hospital and Johannes Kepler University, Linz, Austria
Methods
This prospective single-center trial included patients scheduled for cataract surgery in both eyes. Measurements were performed preoperatively and 1 hour, 1 week and 3 months postoperatively including optical biometry (IOLMaster 700, Carl Zeiss Meditec AG, Germany) and high-definition swept-source OCT (CASIA II, Tomey, Japan and MS-39, CSO, Italy). Additionally, autorefraction, subjective refraction and visual acuity assessments were performed at the last follow-up.
Results
A total of 172 eyes of 87 patients were included in the study. A preliminary dataset of 148 eyes is currently available. Mean preoperative tilt was 4.92° preoperatively and 5.17° posteratively. In short eyes, tilt increased from 6.30° ± 2.23° to 6.53° ± 1.47° and in long eyes, tilt changed from 4.98° ± 1.55° to 5.00° ± 1.70°. A novel prediction algorithm including preoperative lens diameter and other biometric parameters resulted in an improved tilt prediction compared to conventional tilt prediction (92% accuracy versus 84%). The risk of model overfitting was evaluated and found to be negligible.
Conclusions
Intraocular lens tilt prediction can be improved by adding further biometric data (such as lens diameter) to the prediction algorithm. This improvement makes it more likely to be able to include IOL tilt in IOL power calculation.
IIT study Grant from Alcon (76127871 and 76127883)