Objective aberrometer for optical diagnosis of eye aberrations
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Solution Overview
Problem
Conventional refraction processes lack the capability for optical diagnosis, making it difficult to determine whether visual deficiencies are due to poor optics or retinal performance, and fail to provide accurate optical corrections for eyes with normal acuity but poor clarity or multiple images.
Innovation Solution
A method and system that utilize an objective aberrometer module to measure total wave aberration, compute residual aberrations, and generate simulated retinal images to diagnose optical image quality, determining excess aberrations, ranking optical grades, selecting eyes for high-definition eyeglasses, identifying amblyopia or macular diseases, and choosing objective refractions for vision correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional subjective refraction methods are used, then the refraction process can be performed with simple equipment, but optical diagnosis capability is lost and measurement precision deteriorates
Solution Approach 1:
The patent segments the refraction process into distinct functional modules: an objective aberrometer module for measuring wave aberration, a processing module for computing residual aberrations and generating simulated retinal images, and a display module for presenting diagnostic information. This segmentation enables optical diagnosis precision while managing system complexity through modular architecture.
Solution Approach 2:
The patent introduces simulated retinal images as an intermediary diagnostic tool. These images serve as a mediator between the objective wave aberration measurements and the final optical diagnosis, enabling clinicians to visualize and assess optical quality without requiring complex direct retinal imaging equipment.
2Manufacturing precision
If standard sphero-cylindrical correction is applied, then manufacturing simplicity is maintained, but manufacturing precision for exceptional optical quality deteriorates
Solution Approach 1:
The patent changes the refraction parameter representation from standard sphero-cylindrical format to include residual aberration parameters derived from wave aberration analysis. This enables precise characterization of optical quality, allowing manufacturers to produce lenses with exceptional precision (e.g., 20/12 acuity potential) while maintaining ease of manufacture through automated parameter extraction and lens design software.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate optical diagnosis and personalized vision correction by objectively assessing optical quality, improving visual acuity beyond standard 20/20 and identifying specific issues like amblyopia or macular diseases, while preventing unnecessary high-cost custom lenses for eyes that won't benefit from high-definition vision.
Implementation Method 1
obtaining an objective measurement of a total wave aberration of an eye of a patient using an objective aberrometer module
Data Source
AI summary
Methods and systems am disclosed in which an optical diagnosis of an eye's optical image quality is performed using a simulated retinal image. An objective measurement of a total wave aberration is obtained, and residual aberrations are computed by subtracting a sphero-cylindrical correction from the total wave aberration. The simulated retinal image is computed by computing a point-spread function from the residual aberrations and convolving the computed point-spread function with an acuity chart. The optical diagnosis includes at least one of: determining excess aberrations, ranking optics of the eye into optical grades, selecting the eye for high-definition eyeglasses, identifying amblyopia or macular diseases, or choosing an objective refraction for vision correction.