US 2014/0211154 A1 · Method and System for Measuring Intraocular Scattering

Abstract

The present invention relates to a method for measuring ocular scattering, comprising the steps of: sequentially projecting images from an extensive light source, corresponding to different visual angles, onto the retina; recording the output light in a camera or detector once it has passed through the eye twice; calculating the intensity at the center of each recorded image; calculating the PSF for each angle from the previous intensities; and calculating the average of the value of the PSF between the angles. The invention also relates to a system for carrying out said method. The invention can be used to measure the intensity of the scattered light in an objective manner.

Claims13

Dependent claims

A method for measuring ocular scattering comprising the steps of:

[a.] sequentially projecting images of an extensive object from an extensive light source onto the retina of an eye, subtending different visual angles corresponding to different eccentricities of the retina;
[b.] recording the output light in a camera or photodetector once it has passed through the eye twice;
[c.] calculating the intensity at the center of each recorded image;
[d.] reconstructing the broad-field PSF for each angle from the previously calculated intensities;
and
[e.] calculating the average of the value of the PSF between the angles.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/114,354Filed 11 Apr 2012

Priority

ES P20113067028 Apr 2011

Published

31 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

A61B 3/12
Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions: for looking at the eye fundus,…
A61B 3/10
Apparatus for testing the eyes; Instruments for examining the eyes: objective types, i.e. instruments for examining the eyes independent of the…
A61B 3/103
Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions: for determining refraction, e.g.…
A61B
Medical diagnosis and surgery

Method and System for Measuring Intraocular Scattering

Life of this patent

Method and System for Measuring Intraocular Scattering

Life of this patent

Abstract

Claims13