alexa Electrically Variable Intra Ocular Lens For Distance Accommodation
ISSN: 2155-9570

Journal of Clinical & Experimental Ophthalmology
Open Access

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9th Global Ophthalmology Summit
March 15-16, 2017 London, UK

Tigran Galstian
Laval University, Canada
LensVector Inc., Canada
Posters & Accepted Abstracts: J Clin Exp Ophthalmol
DOI: 10.4172/2155-9570.C1.058
Abstract
Multiple passive solutions (such as lens deformation or lens distance change) have been proposed to address the presbyopia problem. However, those solutions are not considered as reliable in long term since the force of the ciliary muscle may decrease with time. We have developed an alternative “active accommodation” approach by using an electrically variable liquid crystal lens. Among the large variety of geometries, allowing the fabrication of liquid crystal lenses, we have chosen a new gradient index lens approach that has several key advantages. The first one is the absence of micro structuration in the clear aperture of the lens in contrast to Fresnel type liquid crystal lenses. This eliminates the night vision hallo that is present in multi focal or other micro structured intra ocular lenses. Another advantage of our approach is the extremely low power consumption of the lens that can be well below 10 microwatts. Optical aberrations of our lens are also very low (figure 1) and they can be remotely adjusted with aging (post-surgery) by re-setting the default control parameters of the lens. The high volume manufacturability of the lens has been successfully demonstrated also.
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