A FILTER AND A METHOD FOR DETERMINING A FILTER TAKING INTO ACCOUNT THE SPECTRAL TRANSMITTANCE OF AN OCULAR MEDIA OF AN EYE OF A WEARER

Disclosed is a method for determining a filter for a visual equipment to be placed in front of the eye of a user to improve visual comfort and/or visual performance of the user, the method including: determining the spectral transmittance of an ocular media of an eye; and determining a filter based...

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Bibliographic Details
Main Authors KASTURE, Prakhar, DUBAIL, Marie, SCHERLEN, Anne-Catherine
Format Patent
LanguageEnglish
French
German
Published 05.04.2023
Subjects
CONTACT LENSES
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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Summary:Disclosed is a method for determining a filter for a visual equipment to be placed in front of the eye of a user to improve visual comfort and/or visual performance of the user, the method including: determining the spectral transmittance of an ocular media of an eye; and determining a filter based on the determined spectral transmittance of the ocular media so the filter has a spectral transmittance profile including: a first portion having a maximum transmittance value between 380 nm and a predetermined threshold, and a second portion with a decreasing transmittance value between the threshold and 670 nm. Also disclosed is a filter whose spectral transmittance is calculated based on the spectral transmittance of the user's ocular media, as well as a set of filters with each filter in the set having a spectral transmittance based on the spectral transmittance of the ocular media of users having different ages.
Bibliography:Application Number: EP20210728915