Ocular Misalignment Measurement Device Using Head Position Compensation
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Solution Overview
Problem
Current methods for measuring ocular misalignment, such as the prism cover test, are subjective and require expert operators, limiting their effectiveness, especially in pediatric patients and cognitively-impaired adults, and fail to account for head position, which is crucial for accurate diagnosis.
Innovation Solution
A device with a viewing enclosure, lenses, a divider, and an integrated microprocessor that displays different images to each eye, allowing patients to input corrections, and calculates ocular misalignment while accounting for head position using sensors like gyroscopes and gravimeters, providing objective measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the prism cover test is performed by highly-trained experts, then measurement accuracy is improved, but device complexity and operational difficulty increase
Solution Approach 1:
The patent replaces the manual, expert-dependent prism cover test with an automated electronic system using displays, cameras, and image processing algorithms to objectively measure ocular misalignment, eliminating the need for highly-trained experts to perform subjective assessments
Solution Approach 2:
The system enables patients to participate in their own measurement process by fixing on displayed targets while cameras automatically capture eye positions and calculate misalignment parameters, reducing dependence on expert operators
2Measurement precision
If the prism cover test is performed with large spatial requirements, then measurement accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The patent transitions from requiring large physical空间的 prism cover test to a compact electronic display system that presents multiple fixation targets in different directions virtually, eliminating the need for extensive physical testing space while maintaining measurement accuracy
3Device complexity
If head tilt is not accounted for in measurements, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The patent integrates multiple measurement capabilities into a single system that simultaneously measures horizontal, vertical, and torsional deviations while accounting for head position, providing comprehensive ocular misalignment assessment without requiring separate specialized devices
Data Source
AI summary
A device for measuring and classifying ocular misalignment of a patient's eyes includes an enclosure, two lenses at the front of the enclosure, one corresponding to each eye of a patient, a divider within the enclosure, positioned laterally between the lenses, a screen within the enclosure, an integrated microprocessor connected to the screen, and at least one input control connected to the integrated microprocessor, at least one input control operable by the patient; where the integrated microprocessor generates and transmits two images to the screen, each image corresponding to each lens; where the integrated microprocessor receives input from the patient via at least one input control to manipulate at least one image on the screen; and where the integrated microprocessor calculates and outputs a quantification of ocular misalignment based on that input.