Author:
Mompeán Juan,Aragón Juan L.,Artal Pablo
Abstract
AbstractA 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.
Funder
Spanish MCIU and AEI
Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia
Spanish MCIU and AEI, as well as European Commission FEDER funds
Publisher
Springer Science and Business Media LLC
Reference20 articles.
1. Fisher, R. F. The elastic constants of the human lens. J. Physiol. 212, 147–180 (1971).
2. Glasser, A. & Campbell, M. C. Presbyopia and the optical changes in the human crystalline lens with age. Vis. Res. 38, 209–229 (1998).
3. Heys, K. R., Cram, S. L. & Truscott, R. J. Massive increase in the stiffness of the human lens nucleus with age: the basis for presbyopia?. Mol. Vis. 10, 956–963 (2004).
4. Sterner, B., Gellerstedt, M. & Sjöström, A. The amplitude of accommodation in 6–10-year-old children–not as good as expected!. Ophthal. Physiol. Opt. 24, 246–251 (2004).
5. Duane, A. Studies in monocular and binocular accommodation with their clinical applications. Am. J. Ophthalmol. 5, 865–877 (1922).
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