Ocular Aberrometry Alignment Correction for Precise Wavefront Measurement
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Solution Overview
Problem
Conventional ocular aberrometers suffer from measurement errors due to eye movement and optical aberrations, leading to inaccurate surgical plans and suboptimal surgical or vision outcomes in eye surgery.
Innovation Solution
An ocular aberrometry system that includes a wavefront sensor and a logic device to determine and generate complex and compact analysis engines based on aberrometer and eye models, using wavefront sensor data to correct alignment deviations and provide real-time monitoring and feedback, thereby reducing measurement errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional ocular aberrometers are used for measurement, then the device is simple and easy to operate, but measurement precision deteriorates due to eye movement and optical aberrations
Solution Approach 1:
The patent introduces an intermediary processing system that includes alignment deviation detection and correction modules. This intermediary layer processes the raw wavefront sensor data to compensate for eye movement and system aberrations before final analysis, thereby improving measurement precision without requiring fundamental changes to the core aberrometer hardware.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring alignment deviations and using this information to adjust and correct measurements in real-time. The logic device receives ocular aberrometry output data, determines alignment deviations, and generates feedback to compensate for these deviations, improving measurement accuracy dynamically during the measurement process.
2Measurement precision
If complex analysis engines are used to correct alignment deviations and system aberrations, then measurement precision improves, but processing time and computational complexity increase
Solution Approach 1:
The system performs preliminary characterization of system aberrations and alignment deviations before actual measurements are taken. By pre-determining correction factors and alignment characteristics, the system reduces the computational burden during real-time measurement processing, thereby improving precision without proportionally increasing processing time.
Solution Approach 2:
The analysis process is segmented into distinct modules: alignment deviation determination, system aberration correction, and final measurement analysis. This segmentation allows each module to be optimized independently, with alignment correction handling basic computations and more complex aberration corrections applied selectively, reducing overall processing time while maintaining precision.
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 provides more accurate and reliable ocular aberrometry measurements by compensating for eye movement and system aberrations, resulting in improved clinical and intraoperative outcomes.
Implementation Method 1
a wavefront sensor configured to provide wavefront sensor data associated with an optical target
Data Source
AI summary
Techniques are disclosed for systems and methods to provide improved ocular aberrometry. An ocular aberrometry system includes a wavefront sensor configured to provide wavefront sensor data associated with an optical target monitored by the ocular aberrometry system and a logic device configured to communicate with the wavefront sensor. The logic device is configured to determine a complex analysis engine for the ocular aberrometry system based, at least in part, on an aberrometer model and/or an eye model associated with the ocular aberrometry system, wherein the aberrometer model and the eye model are based, at least in part, on wavefront sensor data provided by the wavefront sensor. The logic device is also configured to generate a compact analysis engine for the ocular aberrometry system based, at least in part, on the determined complex analysis engine.