Ophthalmic Lenses Using Binary Amplitude Modulation for Myopia Control
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Solution Overview
Problem
Current methods for controlling myopia progression in ophthalmic lenses often compromise vision clarity, cosmetic appearance, or wearer compliance, necessitating a more effective solution that prevents or slows myopia without significant visual impact.
Innovation Solution
The development of ophthalmic lenses incorporating light amplitude modulation patterns, which can block or attenuate light through binary, multi-step, or continuous amplitude modulation, designed to provide a stop signal to the eye without compromising vision, and can be integrated into various lens types such as spectacle or contact lenses, with patterns that are symmetrical, asymmetrical, or localized, and implemented across different portions of the lens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light amplitude modulation patterns are introduced to provide a stop signal for myopia control, then myopia progression is reduced, but vision clarity may be compromised
Solution Approach 1:
The amplitude modulation pattern is applied locally to specific zones of the ophthalmic lens rather than uniformly across the entire lens. This allows different regions of the lens to have different optical properties - some areas provide myopia control through amplitude modulation while other areas maintain clear vision transmission, thus resolving the contradiction between myopia control efficacy and vision clarity
Solution Approach 2:
The lens is divided into multiple functional zones with distinct amplitude modulation characteristics. By segmenting the lens into regions with different modulation depths or patterns, the system can simultaneously achieve myopia control in certain zones while preserving visual acuity in other zones, addressing the trade-off between treatment effectiveness and visual quality
2Reliability
If amplitude modulation patterns are applied across the lens, then myopia progression is slowed, but cosmetic appearance may be degraded
Solution Approach 1:
The amplitude modulation pattern is confined to specific functional zones rather than covering the entire lens surface. This localized application allows the lens to maintain a more natural, cosmetically acceptable appearance in visible areas while still providing effective myopia control in the designated treatment zones
3Reliability
If complex amplitude modulation patterns are used to improve myopia control, then treatment effectiveness increases, but device complexity increases
Solution Approach 1:
The complex amplitude modulation function is segmented into multiple simpler zones with distinct modulation characteristics. Each zone can be designed with relatively simple modulation patterns, but collectively they achieve the desired myopia control effect, thereby reducing individual zone complexity while maintaining overall treatment effectiveness
Solution Approach 2:
The system achieves effective myopia control by varying key parameters such as modulation depth, spatial frequency, and zone distribution rather than requiring complex modulation patterns throughout. By optimizing these parameters in simplified zones, the lens maintains treatment efficacy while reducing design and manufacturing 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
These lenses effectively reduce myopia progression by providing a stop signal to the eye, maintaining vision clarity, and cosmetic appeal, while altering aberrations impacting axial eye growth, thus addressing the limitations of existing solutions.
Implementation Method 1
patterns or masks which block and/or attenuate light (e.g., by amplitude modulation). The amplitude modulation may be binary, for example, where zero amplitude means absorption or blocking of light
Data Source
AI summary
An ophthalmic lens for myopia control comprising patterns or masks which block and/or attenuate light (e.g., by amplitude modulation). The amplitude modulation may be binary, for example, where zero amplitude means absorption or blocking of light and a value of one means that light may be transmitted through the lens without change (e.g., without significant change). Alternatively, in some embodiments, the amplitude modulation may not be binary.