Adjustable Eyewear for Myopia Control Temporal Variation
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Solution Overview
Problem
Existing myopia control solutions, such as atropine drops and orthokeratology contact lenses, exhibit time-dependent effects that can lead to inaccurate focusing and accelerated myopia progression, particularly in children, due to inadequate correction of refractive errors and peripheral defocus.
Innovation Solution
The development of an eyewear system with adjustable ophthalmic lenses controlled by a processor and memory unit, which uses data on the temporal variation of ocular features to adjust optical features such as dioptric power and transmittance in real-time, ensuring continuous and accurate visual correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional concave lenses are used to correct myopia, then distant vision is improved, but peripheral focusing accuracy deteriorates causing myopia progression
Solution Approach 1:
The ophthalmic lens implements different optical corrections for different regions of the visual field. The central region provides standard myopia correction while the peripheral regions provide enhanced correction to eliminate hyperopic defocus. This local differentiation resolves the contradiction by maintaining accurate focusing both centrally and peripherally.
Solution Approach 2:
The lens dynamically adapts its optical properties based on the temporal variation of the myopia control solution's effect. As the solution's effectiveness decreases over time, the lens automatically increases its corrective power to maintain optimal focusing, preventing peripheral defocus and myopia progression.
2Reliability
If myopia control solutions with time-dependent effects are used, then initial visual performance is improved, but visual performance deteriorates over time
Solution Approach 1:
The control unit continuously monitors the temporal variation of the myopia control solution's effect and adjusts the ophthalmic lens parameters accordingly. This feedback mechanism ensures that visual performance is maintained at optimal levels throughout the day, compensating for the declining effect of the myopia control solution.
Solution Approach 2:
The system transitions from static lens parameters to dynamic adjustment. The ophthalmic lens modifies its optical properties in real-time based on the decreasing effectiveness of the myopia control solution, thereby maintaining reliable visual performance throughout the duration of the solution's action.
3Reliability
If fixed optical articles are provided to manage time-dependent effects, then visual correction is achieved, but device complexity and user burden increase
Solution Approach 1:
The patent combines the myopia control solution management and visual correction functions into a single integrated ophthalmic lens system. The control unit automatically manages the temporal variation compensation, eliminating the need for separate fixed optical articles and reducing user burden while maintaining reliable visual correction.
Solution Approach 2:
The ophthalmic lens system is self-regulating. The control unit automatically detects the temporal variation of the myopia control solution and adjusts the lens parameters without user intervention. This self-service capability simplifies the system by eliminating the need for manual management of multiple optical articles.
4Reliability
If multiple predetermined optical articles are used throughout the day, then visual performance is maintained, but ease of operation deteriorates
Solution Approach 1:
The ophthalmic lens with integrated control unit automatically manages visual correction throughout the day. It detects the temporal variation of the myopia control solution and adjusts its parameters without requiring the user to switch between multiple optical articles, thereby maintaining reliable visual performance while significantly improving ease of operation.
Solution Approach 2:
The single ophthalmic lens performs multiple functions: it provides base myopia correction, compensates for temporal variation of the myopia control solution, and maintains optimal visual performance throughout the day. This multi-functionality eliminates the need for multiple specialized optical articles, improving user convenience.
Data Source
Figure 1~3
AI summary
Eyewear (1) for a subject having an eye provided with a myopia control solution, said myopia control solution inducing a temporal variation of an ocular feature of said eye, said eyewear comprising: - at least one ophthalmic lens (100) having an adjustable optical feature, to be placed in front of said eye of said subject for improving the vision of the subject; - a control unit (200), comprising one or more memories (220) and one or more processors (210), adapted to control said ophthalmic lens by setting said adjustable optical feature to a current value (CV); said one or more memories having in memory data (221) relative to said temporal variation of said ocular feature of said eye, said one or more processors being programmed to determine said current value of said adjustable optical feature based on said data.