Wavefront Generator for Ophthalmic Aberration Correction
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Solution Overview
Problem
Current display systems for ophthalmic applications are inadequate in generating customized wavefronts to correct optical aberrations, leading to suboptimal vision correction and treatment planning.
Innovation Solution
A wavefront generator system that includes a processor, projection engine, scanning engine, and memory, capable of receiving optical aberration data to generate and project customized wavefronts onto the retina, allowing light to focus correctly on the eye, thereby improving vision and aiding in treatment planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current display systems are used for ophthalmic applications, then the system structure is simple, but the ability to generate customized wavefronts for vision correction is insufficient
Solution Approach 1:
The system divides the wavefront correction function into separate controllable elements through a lens array where each lens element can be independently controlled. This segmentation allows the system to generate customized wavefronts by adjusting individual lens elements while maintaining an otherwise simple display structure.
Solution Approach 2:
The patent implements dynamic control of the lens array elements, allowing the wavefront generator to adaptively adjust the optical path in real-time based on measured aberrations. This dynamic capability enables customized wavefront generation without requiring a completely complex static system design.
2Manufacturing precision
If customized wavefronts are projected to correct optical aberrations, then vision correction accuracy is improved, but the measurement and control complexity increases
Solution Approach 1:
The system incorporates a feedback loop where wavefront aberrations are measured (e.g., using a Shack-Hartmann sensor), the measured data is processed to determine correction requirements, and the lens array is adjusted accordingly. This feedback mechanism enables accurate vision correction by continuously monitoring and adapting to the eye's optical characteristics.
Solution Approach 2:
The system creates a digital model or copy of the eye's optical aberrations through measurement, then uses this copied information to calculate and implement the precise wavefront correction. This approach simplifies the measurement and control process by working with a digital representation rather than directly manipulating the complex optical path.
3Adaptability or versatility
If a wavefront generator system is implemented, then customized wavefront projection capability is improved, but the device complexity increases
Solution Approach 1:
The wavefront generator system is designed to perform multiple functions: it can correct various types of optical aberrations (myopia, hyperopia, astigmatism, and higher-order aberrations), support different treatment planning scenarios, and work with various display configurations. This multi-functionality achieves customized wavefront projection capability without proportionally increasing device complexity.
Solution Approach 2:
The patent introduces a computational intermediary that processes measurements of optical aberrations and translates them into control signals for the lens array. This intermediary layer simplifies the overall device structure by separating the measurement, computation, and actuation functions, making the system more manageable despite the added capability for customized wavefront projection.
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 corrects optical aberrations by projecting customized wavefronts, enhancing vision clarity and aiding in diagnostic and treatment planning for ophthalmic conditions.
Implementation Method 1
the projection engine is configured to project light having a custom wavefront corresponding to the optical aberration
Implementation Method 2
an image is revealed to the patient. Specific point sources on a spatial light pattern generator are selected to form a diffraction limited spot on the retina which is then scanned across the pupil of the eye
Implementation Method 3
The system then performs a series of measurements across the surface of the eye to determine the wavefront aberrations of the eye
Data Source
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AI summary
Embodiments of this invention relate to the generation of wavefronts for measurements, diagnostics, and treatment planning for ophthalmic applications. In some embodiments, a wavefront generator generates light having a uniform wavefront, which is focusable on the retina of an emmetropic eye by the normal function of the emmetropic eye. In some embodiments, the wavefront generator can generate light having a custom wavefront which is not focusable on the retina of the emmetropic eye. In some embodiments, the wavefront generator can receive information relating to an optical aberration of the eye, generate a custom wavefront, and project light having this custom wavefront, which in combination with the optical aberration of the eye is focusable on the retina.