Portable device for presbyopia correction with optoelectronic lenses driven by pupil response

Juan Mompeán,Juan L Aragón,Pablo Artal

doi:10.1038/s41598-020-77465-5

Abstract

A novel portable device has been developed and built to dynamically, and automatically, correct presbyopia by means of a couple of opto-electronics lenses driven by pupil tracking. The system is completely portable providing with a high range of defocus correction up to 10 D. The glasses are controlled and powered by a smartphone. To achieve a truly real-time response, image processing algorithms have been implemented in OpenCL and ran on the GPU of the smartphone. To validate the system, different visual experiments were carried out in presbyopic subjects. Visual acuity was maintained nearly constant for a range of distances from 5 m to 20 cm.

Highlights

A novel portable device has been developed and built to dynamically, and automatically, correct presbyopia by means of a couple of opto-electronics lenses driven by pupil tracking
A real-time pupil tracking system running on a smartphone is used to dynamically control the optical power required in the opto-electronics lenses
The performance of the device has been measured and the visual acuity of 8 presbyopic subjects has been tested with and without the correction applied for different distances

Summary

Introduction

A novel portable device has been developed and built to dynamically, and automatically, correct presbyopia by means of a couple of opto-electronics lenses driven by pupil tracking. Even if the reduction in the accommodative range starts developing at early ages and it slightly increases throughout the whole life, it is not commonly noticeable for daily tasks until reaching the forties, when people start extending their arms to be able to read texts or see images. There are many available solutions for correcting presbyopia, being the most common progressive spectacles, and multifocal contact lenses or intra-ocular lenses. Those are good solutions in general, with some drawbacks and limitations. Providing a smooth and comfortable visual experience to the subject requires relatively fast changes in the applied power, a heavily integrated and computationally efficient system is essential to properly drive this Dynamic Auto-Accommodation Glasses

Methods

Results

Conclusion