Electrically Addressable Ophthalmic Lenses for Dynamic Myopia Control
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Solution Overview
Problem
Existing ophthalmic lenses for myopic progression provide fixed refractive power and defocus zones, limiting adaptability and visual quality, and there is a need for improved lenses that can dynamically adjust optical power to enhance myopia control and wearer experience.
Innovation Solution
Incorporating electrically-addressable lens portions that can focus light to different locations, including in front of the retina, allowing for adjustable optical power and enhanced myopia control, with optional user control and electrical signal activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed refractive power and non-changeable defocus zones are used in ophthalmic lenses, then manufacturing is simplified and reliability is improved, but adaptability and visual quality are limited
Solution Approach 1:
The patent applies the dynamics principle by incorporating electrically-addressable lens portions that can dynamically change their optical power state between focused and defocused configurations. This allows the lens to adapt to different viewing conditions and prescriptions, transforming a static optical system into a dynamic one that can adjust its properties in real-time based on user needs and environmental conditions.
2Adaptability or versatility
If electrically-addressable lens portions are added to provide dynamic focus adjustment, then adaptability and myopia control are improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the lens into distinct functional zones: a distance vision lens portion and multiple electrically-addressable lens portions. Each segment performs a specific function, allowing independent control and optimization of different optical properties. This modular approach enables dynamic adjustment capabilities while maintaining clear functional separation between different lens regions.
Solution Approach 2:
The electrically-addressable lens portions serve multiple functions: they can provide myopia control by creating myopic defocus, they can adjust optical power for different viewing distances, and they can adapt to changing prescription requirements. This multi-functionality reduces the need for multiple separate lenses or complex mechanical adjustment mechanisms.
3Reliability
If defocussing regions are provided to control myopic progression, then myopia control is improved, but visual quality may be compromised
Solution Approach 1:
The patent resolves the contradiction between myopia control and visual quality by making the defocussing regions dynamic rather than static. The electrically-addressable lens portions can switch between focused and defocused states, allowing the system to provide myopic defocus for myopia control when needed, while maintaining clear focused vision for normal visual tasks. This dynamic capability ensures that visual quality is not permanently compromised while still achieving myopia progression control.
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
The lenses provide adaptable optical power, improving myopia control by reducing eyeball elongation and enhancing visual experience through dynamic focus adjustment.
Implementation Method 1
a distance vision lens portion for focussing light to a first location, thereby correcting myopia, and a plurality of electrically-addressable lens portions addressable to focus light to a second location closer to the lens than the first location
Implementation Method 2
some spectacles have been described that include light scattering elements to scatter light and reduce contrast rather than defocussing the light
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 1E~1F
AI summary
An ophthalmic lens (100, 200, 300, 400, 500, 600, 610, 700, 710, 800, 810, 900, 910, 1000) for controlling myopic progression is provided. The lens comprises a distance vision lens portion (101, 201, 301, 401, 501, 601, 611, 701, 711, 801, 811, 901, 911, 1001) for correcting myopia and at least one electrically-addressable lens portion (102, 202A, 202B, 302A, 302B, 302C, 5 302D, 402A, 402B, 502A, 502B, 602, 612, 702A, 702B, 712A, 712B, 802A, 802B, 812A, 812B, 902A, 902B, 902C, 902D, 912A, 912B, 912C, 912D, 1002) addressable to focus light in front of a retina of a wearer. A system (3000) and method (4000) for controlling myopic progression are also provided.