Partial Optic Add-On for Vision Correction
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Solution Overview
Problem
Existing optical devices, such as implanted IOLs, struggle to effectively address multiple and evolving vision problems associated with aging, like presbyopia, cataracts, and advanced macular degeneration, often requiring complex solutions that are difficult to implement without affecting existing vision corrections.
Innovation Solution
A partial or incomplete optic is designed as an add-on to existing optical systems, featuring active areas that control light focus and incorporate edge or side portions with light-blocking or diffusing structures to reduce unwanted visual symptoms like halos and flare, allowing for targeted vision correction without affecting existing vision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional circular diffractive multifocal optic is used, then multiple vision problems can be addressed, but unwanted visual symptoms like halos and flare increase
Solution Approach 1:
The optic is divided into multiple diffractive zones with different optical powers arranged in a segmented pattern rather than a continuous circular design. This segmentation allows light to be directed to different focal points while reducing the generation of halos and flare by eliminating the continuous circular diffraction pattern that causes these symptoms.
Solution Approach 2:
Different regions of the optic are assigned different optical properties - specific zones have different diffractive powers tailored to address specific vision problems at different locations in the visual field, while maintaining reduced flare characteristics in problematic areas.
2Object-affected harmful factors
If a fan-shaped near vision zone IOL is used, then flare is reduced, but the solution becomes more complex and may not address all vision problems
Solution Approach 1:
The optic incorporates multiple diffractive zones that provide multiple focal points (distance, intermediate, and near vision) within a single optical element, making it a universal solution that addresses multiple vision problems simultaneously without requiring multiple separate implants or complex mechanical adjustments.
3Reliability
If an existing IOL is implanted, then initial vision correction is achieved, but subsequent vision problems cannot be addressed without removing the existing lens
Solution Approach 1:
The optic design allows for dynamic adaptation to changing vision needs over time by incorporating multiple focal points that can address presbyopia, cataracts, and macular degeneration at different stages, enabling the same optical element to adapt as vision problems evolve with aging.
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 partial optic enhances vision by creating a near focal point and improving optical resolution, reducing flare and glare, while being easily integrated with existing optical systems to address specific vision issues without complicating existing corrections.
Implementation Method 1
the partial or incomplete optic controls or changes foci of light incident upon or provided to the active area
Implementation Method 2
conventional circular diffractive multifocal optic
Implementation Method 3
edge or side portions with light-blocking or diffusing structures to reduce unwanted visual symptoms
Implementation Method 4
edge or side portions with light-blocking or diffusing structures to reduce unwanted visual symptoms
Data Source
AI summary
An optical device including a partial or incomplete optic configured operatively as an add-on (e.g., supplemental lens/optic) for an (existing) optical element or system, the partial or incomplete optic having an active area configured in relation to the optical element or system such that the partial or incomplete optic controls or changes foci of light incident upon or provided to the active area, but does not control or change foci of light bypassing optically relevant portions of the partial or incomplete optic, and associated methods for enhancing vision.