SYSTEM AND METHOD FOR PERFORMING TEAR FILM STRUCTURE MEASUREMENT

In a system and method for performing tear film structure measurements a broadband light source illuminates the tear film on a cornea of the eye and a spectrometer measures respective spectra of reflected light from at least one point of the cornea. A color camera obtains a large field of view image...

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Bibliographic Details
Main Authors EPSTEIN, Shlomi, COHEN, Yoel, ARIELI, Yoel, ARBEL, Dror
Format Patent
LanguageEnglish
French
German
Published 30.01.2019
Subjects
COLORIMETRY
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
RADIATION PYROMETRY
SURGERY
TESTING
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Summary:In a system and method for performing tear film structure measurements a broadband light source illuminates the tear film on a cornea of the eye and a spectrometer measures respective spectra of reflected light from at least one point of the cornea. A color camera obtains a large field of view image of the cornea so as to obtain color information for all points of the tear film imaged by the color camera. A processing unit coupled to the camera and to the spectrometer is configured, using 3D electromagnetic simulation, to analyze the reflected light received by the spectrometer and the camera, by iteratively comparing the received reflected light to a simulated measurement until a best fit is obtained for corneal structure parameters
Bibliography:Application Number: EP20180192052