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Optical design and performance of a trifocal sinusoidal diffractive intraocular lens

Authors :
Franco Rigato
María S. Millán
Maite Valentino
Fidel Vega
Source :
Biomed Opt Express
Publication Year :
2021
Publisher :
Optica Publishing Group, 2021.

Abstract

Two theoretical sinusoidal diffractive profile models to build up a trifocal intraocular lens (IOL) are analysed. Topographic features of the diffractive zones such as their shape, step height and radii, as well as the energy efficiency (EE) of the foci, depends on the particular model, and are compared to the ones experimentally measured in a trifocal lens that claims to be designed with a generic sinusoidal diffractive profile: the Acriva Trinova IOL (VSY Biotechnology, The Netherlands). The topography of the IOL is measured by confocal microscopy. The EE is experimentally obtained through-focus with the IOL placed in a model eye. The experimental results match very accurately with one of the theoretical models, the optimum triplicator, once that a spatial shift in the sinusoidal profile is introduced in the model.

Details

ISSN :
21567085
Volume :
12
Database :
OpenAIRE
Journal :
Biomedical Optics Express
Accession number :
edsair.doi.dedup.....6b6af82115d974a64149406feab2b44d
Full Text :
https://doi.org/10.1364/boe.421942