Posters

Understanding the main mechanical parameters of C-loop intraocular lenses

Poster Details

First Author: I.Cabeza Gil SPAIN

Co Author(s):    B. Calvo   L. Remón   M. Ariza              

Abstract Details

Purpose:

To identify the most influential parameters of the C-loop intraocular lenses design on the mechanical response.

Setting:

Department of Mechanical Engineering, University of Zaragoza, Zaragoza, Spain.

Methods:

A 1-piece hydrophobic IOL with non-angulated C-loop haptics is analysed in this study. A compression test is performed numerically. Six parameters are under study: haptic length, haptic width, haptic curvature start, opening of the haptic, haptic-optic union and edge thickness. Using the methodology of design of experiments, a mixed-factorial analysis was carried out to analyse the impact of the different variables on the biomechanical stability of the lens (reaction force, displacement, rotation and tilt).

Results:

The optic-haptic union and haptic curvature start  are the most influential parameters on the biomechanical behaviour. The haptic width, the edge thickness and the opening of the haptic present a lower influence. The haptic length is not relevant.

Conclusions:

Several optimal design of C-loop intraocular lenses have been proposed in order to ensure the biomechanical stability of the lens in the capsular bag.

Financial Disclosure:

None