US 2022/0007933 A1Published application

System and method for performing tear film structure measurement

AssigneeAdom, Advanced Optical Technologies Ltd.

InventorsYoel ARIELI, Yoel COHEN, Shlomi EPSTEIN, Dror ARBEL, Ra'anan GEFEN

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Abstract

Apparatus and methods are described for performing tear film structure measurement on a tear film of an eye of a subject. A broadband light source (100) is configured to generate broadband light. A spectrometer (250) is configured to measure a spectrum of light of the broadband light that is reflected from at least one spot on the tear film, the spot having a diameter of between 100 microns and 240 microns. A computer processor (28) is coupled to the spectrometer and configured to determine a characteristic of the tear film based upon the spectrum of light measured by the spectrometer. Other applications are also described.

Claims26

Dependent claims

An optical system for measuring one or more characteristics of a tear film of an eye of a subject, the optical system comprising at least:

at least one light source configured to irradiate light in the visible and near infrared (NIR) wavelength bands;
at least one detector configured for measuring one or more optical characteristics of the tear film of the subject by detecting characteristics of light reflected from the tear film;
one or more optical elements positioned and configured for directing light from the at least one light source towards a cornea of the eye of the subject and light reflected from the cornea towards the at least one detector;
and
a computer processor configured to receive output from the at least one detector and process the received output to determine one or more characteristics of the tear film, and
wherein the computer processor is further configured to generate color information of at least one layer of the tear film, based on the determined one or more characteristics of the tear film.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/473,839Filed 13 Sep 2021
Priority: 6 Mar 2014
Published: 13 Jan 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

A61B 3/101
Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions: for examining the tear film
A61B 3/0025
Operational features thereof: characterised by electronic signal processing, e.g. eye models
A61B 3/1005
Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions: for measuring distances inside the…
A61B 3/152
With means for aligning, spacing or blocking spurious reflection ; with means for relaxing: for aligning

Family

Application61/948,579Us provisional application · filed 6 Mar 2014
Application15/227,839Continuation in part · filed 3 Aug 2016
Application16/322,083Continuation · filed 30 Jan 2019
Application17/473,839Continuation
Application16/322,083Continuation in part
US 11,116,394 B2Related patent
US 12,023,099 B2Related patent
US 2016/0338585 A1Published application
US 2019/0183333 A1Published application
US 9,757,027 B2Related patent
US 2022/0007933 A1This patent

From the US filing history. Foreign family members aren’t listed.

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