Ophthalmic Measurement System Wavefront Deviation Analysis
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Solution Overview
Problem
Ophthalmic measuring systems typically lack multiple devices providing simultaneous measurements, making it difficult to detect measurement errors, and current methods for error detection or averaging are time-consuming and ineffective.
Innovation Solution
An ophthalmic system comprising an OCT device, an aberrometer, and a topographer, along with a computer that generates an ocular model, compares wavefronts from different devices, and evaluates measurements based on deviations to identify potential issues with measurement conditions or devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurements are taken from multiple measuring devices, then measurement accuracy and error detection improve, but measurement time and processing complexity increase
Solution Approach 1:
The patent combines multiple measuring devices (OCT device, aberrometer, topographer) into a single integrated ophthalmic measuring system. This merging allows simultaneous acquisition of measurements from different devices, eliminating the need for sequential measurement processes and reducing total measurement time while maintaining the ability to cross-validate data for improved accuracy
Solution Approach 2:
The integrated system performs multiple measurement functions simultaneously - optical coherence tomography for structural imaging, aberrometry for wavefront analysis, and topography for surface mapping. This multi-functionality enables comprehensive eye parameter assessment in a single measurement session, improving measurement accuracy without proportionally increasing time consumption
2Reliability
If multiple measuring devices are integrated into one system, then measurement evaluation and error detection improve, but device complexity increases
Solution Approach 1:
The system incorporates a computer that automatically processes and compares measurements from multiple devices, identifying deviations and potential errors through algorithmic analysis. This feedback mechanism enables reliable error detection without requiring complex manual evaluation procedures, managing system complexity through automated intelligence
Solution Approach 2:
The integrated system is divided into distinct functional modules - OCT device for structural measurement, aberrometer for wavefront measurement, topographer for surface measurement, and a computer for data integration and analysis. This segmentation allows each component to be optimized independently while maintaining overall system manageability and reducing operational complexity
3Adaptability or versatility
If multiple measuring devices are used, then comprehensive eye parameter assessment improves, but ease of operation deteriorates
Solution Approach 1:
By merging multiple measuring devices into a single integrated system with a unified control interface, the patent enables comprehensive eye parameter assessment through one operational workflow. The computer coordinates all devices and presents integrated results, maintaining operational simplicity despite the comprehensive measurement capabilities
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 compares and evaluates measurements from multiple devices, identifying issues such as tear film instability, device alignment, or calibration problems, thereby improving the accuracy and reliability of eye measurements.
Implementation Method 1
The OCT device directs OCT light towards the eye, and detects the OCT light reflected from the eye to measure the eye
Implementation Method 2
The aberrometer directs aberrometer light towards the eye, and detects the aberrometer light reflected from the eye to measure the eye
Implementation Method 3
The measuring devices comprise a topographer that directs topographer light towards the eye, and detects the topographer light reflected from the eye
Data Source
AI summary
An ophthalmic system for measuring an eye comprises measuring devices and a computer. The measuring devices comprise an optical coherence tomography (OCT) device and an aberrometer. The OCT device directs OCT light towards the eye, and detects the OCT light reflected from the eye to measure the eye. The aberrometer directs aberrometer light towards the eye, and detects the aberrometer light reflected from the eye to measure the eye. The computer generates an ocular model of the eye according to the reflected OCT light. The ocular model comprises parameters for the eye, where each parameter is assigned a value. The computer determines an OCT-based wavefront according to the ocular model, determines an aberrometer-based wavefront according to the reflected aberrometer light, ascertains a deviation between the OCT-based wavefront and the aberrometer-based wavefront, and evaluates measurements from one or more of the measuring devices according to the deviation.