Segmented Training Glasses for Peripheral Hyperopia Defocus
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Solution Overview
Problem
Current eyeglasses fail to effectively address peripheral hyperopia defocus, leading to aggravation of myopia and increased spherical dioptric power, as they do not provide a uniform and stable peripheral diopter, causing image distortion and further eye strain.
Innovation Solution
The development of training glasses with specific refractive training areas and transition zones that provide a uniform peripheral diopter, avoiding significant changes in diopter and image distortion, and a training system that includes adjustable screens to enhance binocular single vision and reduce eye strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a concave lens is worn to correct myopic ametropia, then central vision is focused, but peripheral hyperopia defocus is aggravated
Solution Approach 1:
The lens is divided into multiple refractive zones: a central area with first refractive power for central vision, and a peripheral area with second refractive power (higher than the central area) for peripheral vision. This segmentation allows different regions of the lens to address different visual needs simultaneously, correcting both central and peripheral defocus issues.
Solution Approach 2:
Different regions of the lens are assigned different refractive powers tailored to their specific functions. The central area has lower refractive power for distance vision, while the peripheral area has higher refractive power to compensate for peripheral hyperopia defocus. This local differentiation of optical properties resolves the contradiction between central and peripheral vision requirements.
2Adaptability or versatility
If a traditional progressive lens is used, then presbyopia is resisted, but peripheralhyperopia defocus is not addressed
Solution Approach 1:
The lens incorporates both a central area for distance vision and a peripheral area with elevated refractive power, creating a segmented optical structure that simultaneously addresses both presbyopia (through the central area) and peripheral hyperopia defocus (through the peripheral area), making the lens versatile for multiple vision corrections.
Solution Approach 2:
The lens design serves multiple functions: the central area corrects presbyopia for close-up vision, while the peripheral area corrects peripheral hyperopia defocus. This multi-functionality allows a single lens to address both age-related vision changes and peripheral vision defects, overcoming the limitation of traditional progressive lenses.
3Adaptability or versatility
If a 360° progressive lens is used, then continuous diopter change is achieved, but image distortion increases
Solution Approach 1:
Instead of continuous diopter change, the lens uses discrete segmentation into a central area and a peripheral area with distinct refractive powers. This segmentation reduces the number of transition zones and minimizes optical distortion while still providing the necessary diopter changes for different visual tasks.
Solution Approach 2:
The design extracts and emphasizes the peripheral area with elevated refractive power, separating it from the central area. This extraction allows the peripheral correction function to be optimized independently, reducing the overall image distortion that would result from attempting continuous diopter progression across the entire lens.
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 training glasses effectively resist peripheral hyperopia defocus, reducing the risk of myopia progression and providing a more stable and comfortable visual experience by maintaining a uniform peripheral diopter and reducing eye strain through the training system's binocular single vision enhancement.
Implementation Method 1
the second refractive training area has an additional diopter ranging from +1.0 D to +4.5 D
Data Source
AI summary
Provided are training glasses, a training system, and a training method thereof. Each of the lenses includes a first refractive training area and a second refractive training area; the first refractive training area is an enclosed area at a center of each lens, and the second refractive training area is an area other than the first refractive training area of each lens, the second refractive training area has a diopter ranging from +1.0 D to +4.5 D. The training glasses and the training method of the present disclosure can provide a very uniform and stable peripheral diopter, and also avoid a significant change in diopters caused by a partition. Meanwhile, occurrence of a central diopter at the periphery is avoided, so as not to add adverse factors to the hyperopic defocus phenomenon of peripheral retinal, and the hyperopic defocus phenomenon of peripheral retinal can be effectively resisted.