Optical Coating Nanoparticles for Myopia Control
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Solution Overview
Problem
Existing methods for myopia control and prevention do not effectively focus scattered light rays on the retina, fail to reduce haze observed by others, and cannot adjust the RGB light scatter ratio to slow axial eye growth.
Innovation Solution
Incorporating optically functional nanoparticles, such as light scattering and photoluminescence nanoparticles, into a substrate to create an optical coating that is applied to or embedded within an optical support element, forming optically-improved micro-lenses that control light scatter direction, intensity, and pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light scattering sites are generated by laser ablation, then light scattering capability is improved, but control of light scatter direction and focus on retina is insufficient
Solution Approach 1:
The patent changes the physical and chemical parameters of the optical lens by incorporating nanoparticles with specific sizes (comparable to light wavelengths), refractive indices, and optical properties. This enables precise control of light scattering direction and intensity, allowing focused light scatter on the retina while maintaining manufacturing feasibility through chemical vapor deposition or solution processing methods.
Solution Approach 2:
The patent uses composite materials consisting of nanoparticles embedded in a binder matrix within the optical lens. This composite structure combines the light scattering properties of nanoparticles with the optical clarity of the lens material, achieving both effective light scattering capability and precise directional control that neither material could provide alone.
2Reliability
If light scattering sites are created to slow myopia progression, then myopia control is improved, but haze observed by others increases
Solution Approach 1:
The patent applies local quality by creating optically improved micro-lenses with specific spatial distributions and optical properties in different regions of the optical lens. The nanoparticles are strategically positioned and sized to provide targeted light scattering only where needed for myopia control, while other regions maintain optical clarity to minimize haze observation by others.
3Reliability
If scattering light rays are focused before the retina, then myopia progression is slowed, but visual acuity maintenance becomes challenging
Solution Approach 1:
The patent implements dynamics by creating an adjustable and adaptable optical system where the nanoparticle distribution and optical properties can be tuned to provide different levels of light scattering. This dynamic capability allows the system to optimize between myopia control and visual acuity maintenance based on individual patient needs and changing conditions over time.
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 method enhances the control of light scatter on the retina, reduces haze observed by others, and adjusts the RGB light scatter ratio to slow myopia progression, maintain visual acuity, and prevent retinal detachment and blindness.
Implementation Method 1
the light scattering nanoparticles comprise Mie-type nanoparticles
Implementation Method 2
the optically functional nanoparticles comprise light scattering nanoparticles and photoluminescence nanoparticles
Data Source
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AI summary
A method for manufacturing an optical article (50a, 50b, 50c) comprising: - incorporating (102) optically functional nanoparticles (16; 20) into a substrate (22), thus obtaining an optical coating (24); - applying (106, 108, 110) said optical coating (24) on a surface of an optical support element (26', 26", 26‴) or incorporating said optical coating (24) as a layer within said optical support element (26', 26", 26‴), thus obtaining said optical article (50a, 50b, 50c).