Active Projection Modules for Myopia Defocus in Spectacles
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Solution Overview
Problem
Existing methods for treating myopia, such as passive manipulation of light, often result in less than ideal visual outcomes and are cumbersome for users, particularly when integrated into vision devices like spectacles.
Innovation Solution
An active projection system comprising projection modules and optical elements that generate and direct stimuli to specific regions of the eye, creating defocused images anterior or posterior to the retina, which can be incorporated into spectacles, contact lenses, or virtual/augmented reality devices, to slow or stop myopia progression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If passive manipulation of light is used to provide myopic defocus stimuli, then the treatment approach is simpler, but visual results are less than ideal and image quality is degraded
Solution Approach 1:
The patent replaces passive optical manipulation with an active projection system that uses electronic control to generate and direct light stimuli. This substitution enables precise control over stimulus placement and quality while maintaining the ability to provide myopic defocus, resolving the contradiction between simplicity and image quality.
Solution Approach 2:
The patent introduces projection modules as intermediary devices that actively generate and direct light stimuli to specific retinal locations. These modules serve as mediators between the user and the eye, enabling precise control over stimulus quality and placement while maintaining ease of use through integration into spectacle frames.
2Reliability
If prior approaches for myopic defocus are used, then treatment can be provided, but the approaches are more complex and less suited for integration into spectacles
Solution Approach 1:
The patent divides the treatment system into multiple projection modules that can be distributed around the spectacle frame. Each module independently provides myopic defocus to specific retinal regions, allowing the system to achieve effective treatment while maintaining modularity and reducing overall system complexity through functional distribution.
Solution Approach 2:
The projection modules are designed to perform multiple functions: generating light stimuli, directing them to specific retinal locations, and providing myopic defocus. This multi-functionality reduces the need for separate components and simplifies the overall system architecture while maintaining treatment effectiveness.
3Reliability
If prior approaches for myopic defocus are used, then treatment can be provided, but the approaches are more cumbersome for the user to wear
Solution Approach 1:
The patent integrates projection modules within the spectacle frame structure, nesting the treatment functionality within the existing wearable device. This nesting approach allows the myopic defocus treatment to be provided without adding separate, cumbersome components, thereby improving user comfort while maintaining treatment effectiveness.
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 system effectively slows or stops myopia progression while maintaining clear vision in the central field of view, providing a more comfortable and effective treatment option compared to existing methods.
Implementation Method 1
Each projection module includes a source of illumination, a stimulus forming element that generates a stimulus when illuminated by the source of illumination
Implementation Method 2
The optical element directs the generated stimulus to a desired region or location of a person's eye where the stimulus forms an image that is defocused on the retina
Data Source
AI summary
Systems, devices, apparatuses and methods for an active projection system that may be incorporated into spectacles, contact lenses or provided as an add-on layer to existing spectacles or lenses. The active projection system operates to generate a stimulus or stimuli for viewing by a person's eye. The stimulus or stimuli creates an image that is defocused in front of the person's retina and can assist in slowing or stopping the progression of myopia or other refractive errors in the person.