US 2025/0359752 A1 · DEVICE FOR MEASURING MAXWELL SPOT CENTROID ORIENTATIONS, PARTICULARLY IN PEOPLE WITH DYSLEXIA

Abstract

An electronic device is disclosed that is able to measure the critical orientations of the ellipses with a precision of 2°, and respective orientations of the main axes for both eyes, which lead to reading difficulties in children. The device according to the invention comprises a control unit for controlling the orientation of an elliptical profile in order to be able to measure mirror-image or translational orientations that are liable to lead to reading difficulties. Opposite or parallel orientations of two profiles having the same ellipticity may in particular lead to two types of dyslexia. The entopic image of each Maxwell spot centroid along with its orientation, observed using a viewing system with a double blue-green rotary filter, makes it possible to diagnose various types of dyslexia. Advantageously, the rotary system makes it possible to choose the rotational frequency so as to optimize contrast quality.

Claims5

Dependent claims

A device for measuring orientations related to possible ellipticities of Maxwell spot centroids devoid of blue cones of each eye in people with dyslexia, characterized in that it comprises:

an electronic control and measurement system UCM creating an ellipse with a major axis orientation adjustable to within 2°, projected onto a screen;
a lighting system of an order of 2,000 to 4,000 lumens, illuminating a screen on which the ellipse's contour is projected simultaneously, with tracking and display of the major axis orientations for both eyes and their angular difference.

Dependencies are inferred from the claim text.

Device for measuring maxwell spot centroid orientations, particularly in people with dyslexia

Life of this patent

Device for measuring maxwell spot centroid orientations, particularly in people with dyslexia

Life of this patent

Abstract

Claims5