Ophthalmic Lens Myopia Control via Digital Pattern Orientation

Solution Overview

Problem

Current methods for manufacturing ophthalmic lenses to address myopia progression lack the ability to provide customized optical elements at the point of sale, leading to inefficiencies in reducing myopia progression effectively.

Innovation Solution

A method for forming patterns of optical elements on ophthalmic lenses using a data processing apparatus to specify the orientation and pattern of optical elements, allowing for radially asymmetric or symmetric patterns on stock lenses, which can be customized to reduce myopic progression by forming optical elements such as lenslets or scattering centers on the lenses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If ophthalmic lenses are customized specifically for each patient with personalized optical patterns to reduce myopia progression, then the effectiveness of myopia mitigation is improved, but the manufacturing complexity and time required increases

Engineering Contradiction:

Improveeffectiveness of myopia mitigationVSAvoidmanufacturing complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-manufacturing blank ophthalmic lenses with standardized optical patterns designed for myopia mitigation. These pre-prepared lenses can be quickly customized with patient-specific prescriptions through digital surfacing and coating technologies, rather than manufacturing completely custom lenses from scratch for each patient. This reduces manufacturing complexity while maintaining the effectiveness of personalized optical patterns.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent utilizes parameter changes by varying the optical properties of lens regions through different refractive indices, curvatures, and aspheric coefficients in various zones of the lens. By changing these optical parameters in specific patterns (e.g., peripheral vs. central zones), the lens can provide differentiated optical effects for myopia control while using standardized manufacturing processes.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If ophthalmic lenses are customized specifically for each patient with personalized optical patterns, then the adaptability to individual patient needs is improved, but the productivity and speed of delivery decreases

Engineering Contradiction:

Improvecustomization to patient needsVSAvoiddelivery speed

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies preliminary action by pre-manufacturing blank ophthalmic lenses with standardized optical patterns designed for myopia mitigation. These pre-prepared lenses can be quickly customized with patient-specific prescriptions through digital surfacing and coating technologies, rather than manufacturing completely custom lenses from scratch for each patient. This reduces manufacturing complexity while maintaining the effectiveness of personalized optical patterns.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent applies universality by designing optical patterns that can be applied across multiple lens types and prescriptions. The same fundamental myopia-mitigation pattern structure can be adapted to different patients by adjusting parameters such as prescription strength, lens material, and specific zone boundaries, rather than requiring entirely unique designs for each patient.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If Just-In-Time manufacturing is implemented for ophthalmic lenses to enable rapid delivery, then the productivity and delivery speed is improved, but the manufacturing precision and customization quality may worsen

Engineering Contradiction:

Improvedelivery speedVSAvoidcustomization quality

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent applies mechanics substitution by replacing traditional mechanical lens manufacturing and customization processes with digital technologies. Digital surfacing uses computer-controlled algorithms to generate precise lens surfaces, while digital coating technologies apply anti-reflective and other coatings with high precision through automated systems. This enables rapid customization without sacrificing manufacturing precision.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes parameter changes by varying the optical properties of lens regions through different refractive indices, curvatures, and aspheric coefficients in various zones of the lens. By changing these optical parameters in specific patterns (e.g., peripheral vs. central zones), the lens can provide differentiated optical effects for myopia control while using standardized manufacturing processes.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20230181030A1Ophthalmic lenses, methods of manufacturing the ophthalmic lenses, and methods of dispensing eye care products including the same

Publication Date: 2023.06.15 SIGHTGLASS VISION INC

AI summary

Ophthalmic lenses and method of manufacturing ophthalmic lenses are disclosed. The lenses are manufactured with markers for aligning the lenses in a particular rotational alignment with respect to a spectacle frame. The lenses can also be provided with scattering parts for defocus to prevent myopia.