Systems and methods for testing and analyzing visual acuity and its changes

ES3073486T3Undetermined Publication Date: 2026-07-13

Patent Information

Authority / Receiving Office: ES · ES
Patent Type: Patents
Filing Date: 2018-06-22
Publication Date: 2026-07-13

AI Technical Summary

Technical Problem

Existing visual acuity testing methods lack precision and consistency across different chart designs, leading to imprecise comparisons and tracking of visual changes, particularly in clinical settings, and fail to provide quantitative results.

Method used

A system and method for developing personalized acuity charts using interchangeable chart-invariant information, incorporating adaptive algorithms to optimize optotype selection, and generating precise acuity parameters independent of chart design, enabling rapid and precise visual acuity estimation.

Benefits of technology

The system provides precise, rapid, and consistent visual acuity testing that is independent of chart design, allowing for accurate tracking of visual health over time and adherence to standard design constraints.

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Abstract

This document describes a system and method for testing and analyzing visual acuity and its changes using a visual acuity model. This model is generated from one or more design parameters of the visual acuity chart and candidate visual acuity parameters, calculated from the subject's visual acuity test data. The visual acuity model comprises a specific psychometric function of the chart, determined using a family of multi-optotype psychometric functions, and the visual acuity model is configurable to estimate the likelihood of obtaining the subject's visual acuity test data.

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