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Temporal multiplexing to simulate multifocal intraocular lenses: theoretical considerations.

Vyas Akondi¹, Carlos Dorronsoro¹, Enrique Gambra^1,2

¹Visual Optics and Biophotonics Laboratory, Instituto de Óptica, CSIC, Madrid, Spain.

Biomedical Optics Express

|July 19, 2017

Summary

A new method effectively simulates multifocal intraocular lenses (M-IOLs) using fast tunable lenses. This vision simulator accurately replicates M-IOL optical performance, aiding in the design of advanced vision correction devices.

Keywords:

(220.1010) Aberrations (global)(220.1080) Active or adaptive optics (330.0330) Vision, color, and visual optics (330.5370) Physiological optics (330.7327) Visual optics, ophthalmic instrumentation

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Area of Science:

Optics and Vision Science
Biomedical Engineering

Background:

Multifocal intraocular lenses (M-IOLs) offer solutions for presbyopia but require precise simulation for design and evaluation.
Fast tunable lenses provide a promising technology for creating portable vision simulators.

Purpose of the Study:

To present a novel method for evaluating the temporal profile of tunable lenses in simulating multifocal corrections.
To assess the accuracy of a simultaneous vision simulator (SimVis) in replicating M-IOL optical performance.

Main Methods:

Developed a method to fit the through-focus (TF) optical quality of M-IOLs to a tunable lens's TF optical quality.
Utilized the visual Strehl (VS) ratio as the primary metric for optical evaluation of temporal profiles.
Tested segmented refractive, diffractive, and extended depth of focus M-IOL designs.

Main Results:

SimVis, using the VS ratio metric, generated temporal profiles closely matching predicted M-IOL performance.
Accurate replication of TF VS ratio and TF simulated images was achieved.
The study analyzed the impact of temporal sampling, pupil size, and aberrations on simulation fidelity.

Conclusions:

The proposed method enables accurate simulation of various M-IOL designs using tunable lenses.
This approach facilitates the development of effective portable vision simulators for multifocal corrections.
Further research should consider the influence of specific optical aberrations and dynamic parameters.