Ametropia treatment tracking methods and system

Abstract

A system, method and computer program product for estimating future axial elongation of an individual's eye as a way to predict and track refractive error progression of an individual. The method includes: receiving, via a computer interface, data relating to refractive change in a prior pre-determined time period for the individual from a reference timepoint; receiving data representing an age of the individual and data representing a current axial length value of the eye as measured at the reference timepoint; calculating, by said processor, a future axial elongation of the eye as a function of the age of the individual, the current axial length value of the eye as measured at the reference timepoint, and the refractive change in the prior pre-determined time period; generating, an output indication of said computed axial elongation of the eye, and using said output indication to select a myopia control treatment for said individual.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This patent application claims the benefit of U.S. Provisional Patent Application Ser. No. 62 / 489,666 filed on Apr. 25, 2017, and is a continuation-in-part of U.S. patent application Ser. No. 15 / 007,660 filed Jan. 27, 2016.BACKGROUND OF THE INVENTIONField of the Invention[0002]The present invention relates to methods and a system for determining myopia progression in an individual by predicting changes in the axial length of the individual's eye based on that individual's past refractive rate of change, and for recommending a myopia control treatment option for controlling refractive progression based on the predicted axial elongation.Discussion of the Related Art[0003]Common conditions which lead to reduced visual acuity include myopia and hyperopia, for which corrective lenses in the form of spectacles, or rigid or soft contact lenses, are prescribed. The conditions are generally described as the imbalance between the length of the eye ...

AI Technical Summary

Benefits of technology

[0012]The present invention thus may be used to determine an estimation of a refractive change of an individual over a past predetermined time and use this information to be able to predict a value representing a change in axial length of the eye thereby allowing for estimation of myopia progression over a future period of time.

[0013]These results can help clinicians detect excessive eye growth at an early age, thereby facilitating decision-making with respect to interventions for preventing and / or controlling myopia.

Problems solved by technology

Myopia typically develops because the axial length of the eye grows to be longer than the focal length of the optical components of the eye, that is, the eye grows too long.

Hyperopia typically develops because the axial length of the eye is too short compared with the focal length of the optical components of the eye, that is, the eye does not grow long enough.

High myopia is also associated with an increased risk of retinal disease, cataract, glaucoma, and myopic macular degeneration (MMD; also known as myopic retinopathy), and may become a leading cause of permanent blindness worldwide.

For example, MMD has been related to refractive error (RE) to a degree rendering no clear distinction between pathological and physiological myopia and such that there is no “safe” level of myopia.

However, the corrective approach to the conditions does not address the cause of the condition, but is merely prosthetic or intended to address symptoms.

Astigmatic errors of focus cause the image of a point source of light to form as two mutually perpendicular lines at different focal distances.

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