Astigmatism Power Test Using Computing Device Screen
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Solution Overview
Problem
Current astigmatism power tests require professional opticians or ophthalmologists for their administration, making them inaccessible for self-testing.
Innovation Solution
A method utilizing a computing device with a screen to perform an astigmatism power test, where the user provides feedback to calibrate the rotation of an elongated image, determine the angle of astigmatism, and adjust image thickness and blurriness to assess needed refraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If comprehensive astigmatism tests are performed using traditional methods, then measurement precision is improved, but device complexity and ease of operation worsen due to requiring professional equipment and trained personnel
Solution Approach 1:
The patent creates a simplified copy of the professional astigmatism testing system using a computing device with screen and processor. Instead of requiring complex optical instruments like keratometers, the system uses software-based elongated image displays that replicate the essential measurement functionality, making the test accessible to consumers without professional equipment
Solution Approach 2:
The patent replaces mechanical/optical testing equipment with a software-based system. The complex mechanical apparatus of traditional eye exams is substituted with a computing device displaying elongated images, where the processor analyzes user responses to determine astigmatism parameters, eliminating the need for specialized optical instruments
2Measurement precision
If comprehensive astigmatism tests are performed using traditional methods, then measurement precision is improved, but ease of operation worsens due to requiring professional administration
Solution Approach 1:
The patent enables users to perform astigmatism testing independently without professional assistance. The computing device presents elongated images and automatically processes user feedback through the processor, allowing individuals to conduct their own eye examinations at home, eliminating the need for optician or ophthalmologist administration
Solution Approach 2:
The system incorporates real-time feedback mechanisms where the processor analyzes user responses to elongated image presentations and adjusts subsequent images based on this feedback. This automated feedback loop guides users through the testing process, ensuring accurate results while maintaining ease of operation through intuitive interaction
3Ease of operation
If traditional eye charts are used, then ease of operation is improved, but measurement precision worsens due to inability to determine astigmatism axis and power
Solution Approach 1:
The patent uses dynamic elongated images that can be rotated and adjusted in orientation, unlike static traditional eye charts. The system presents images at various angles and uses the processor to analyze which orientations the user perceives most clearly, thereby determining the astigmatism axis and power with precision while maintaining user-friendly operation
Data Source
AI summary
A method for performing an astigmatism power test using a computing having a screen for displaying images relating to the astigmatism power test. The method includes determining an angle of astigmatism, calibrating visual acuity of the user, determining amplitudes required for the astigmatism correction, and determining the needed refraction, as well as a corresponding computer system.