Spectacle Lenses With Micro Lenslet Arrays for Chromatic Myopia Control
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Solution Overview
Problem
Existing ophthalmic lenses fail to provide a stop signal to eye growth irrespective of the direction of gaze, and there is a need for a spectacle lens system that can decelerate myopia progression by introducing conflicting chromatic cues at the retinal level, particularly affecting M and L cone receptors.
Innovation Solution
The use of refractive optical elements (ROEs) and diffractive optical elements (DOEs) in conjunction with spectacle lenses to introduce conflicting or contradictory optical signals between neighboring cone photoreceptors, altering longitudinal chromatic aberration for wavelengths between 510 nm and 610 nm, and incorporating micro lenslet arrays to modify incoming light and provide spatially and spectrally variant focal patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional spectacle lenses are used to correct refractive error, then visual acuity is improved, but they fail to provide a stop signal to eye growth and may not decelerate myopia progression
Solution Approach 1:
The lens is divided into multiple functional zones: a central optical zone for refractive correction and surrounding peripheral zones with micro lenslet arrays that generate conflicting chromatic cues. This segmentation allows simultaneous achievement of clear vision and myopia control by directing different wavelengths of light to different retinal locations in the peripheral zones.
Solution Approach 2:
Different regions of the lens provide different optical functions: the central zone provides standard refractive correction, while peripheral zones introduce controlled chromatic aberration with blue light defocus. This local differentiation enables the lens to maintain visual acuity centrally while providing growth-inhibiting signals peripherally.
2Reliability
If spectacle lenses are designed to provide conflicting chromatic cues at the retinal level, then myopia progression is decelerated, but the device complexity increases due to incorporation of micro lenslet arrays and multiple optical elements
Solution Approach 1:
Multiple optical functions are merged into a single lens structure: refractive correction, chromatic aberration control, and myopia management are integrated through the combination of standard lens optics with embedded micro lenslet arrays. This merging reduces the need for multiple separate devices while achieving comprehensive eye health management.
Solution Approach 2:
The spectacle lens serves multiple functions simultaneously: it corrects refractive error for clear vision, introduces controlled chromatic cues for myopia control, and provides peripheral defocus signals. This multi-functionality is achieved by integrating standard optical correction with specialized micro-optical elements in a single lens system.
3Reliability
If micro lenslet arrays are incorporated to introduce conflicting optical signals, then the stop signal effectiveness is improved irrespective of gaze direction, but manufacturing precision requirements increase
Solution Approach 1:
The complex micro lenslet array structure is extracted as a separate functional component that can be manufactured independently using specialized techniques, then integrated into the finished spectacle lens. This extraction allows optimization of manufacturing processes for the micro-optical elements separately from the main lens, improving overall precision while managing complexity.
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
This approach effectively decelerates the rate of myopia progression by providing a stop signal to the eye, irrespective of the direction of gaze, by altering the optical signals received by M and L cones, thereby reducing the stimulus for eye growth.
Implementation Method 1
refractive optical elements (ROEs) and diffractive optical elements (DOEs) in conjunction with spectacle lenses to introduce conflicting or contradictory optical signals
Implementation Method 2
diffractive optical elements (DOEs) in conjunction with spectacle lenses to introduce conflicting or contradictory optical signals
Implementation Method 3
incorporating micro lenslet arrays to modify incoming light and provide spatially and spectrally variant focal patterns
Data Source
AI summary
The present disclosure is directed generally to a lens that provides a stop signal to a myopic eye, over a substantial portion of the spectacle lens that the viewer is using. The present disclosure is directed to devices, methods and/or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a micro lenslet array. The present disclosure is also directed to devices, methods and/or systems of modifying incoming light through spectacle lenses that utilizes chromatic cues to decelerate the rate of myopia progression. The present disclosure is directed to devices, methods and/or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a refractive optical element and/or diffractive optical element that offer conflicting or contradictory optical signals at a wavelength between 510 nm and 610 nm.