HMD Vision Assessment for Home Screen Susceptibility Testing
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Solution Overview
Problem
Traditional methods for visual acuity assessment lack dynamic adjustment of test parameters and cannot be implemented for home use with household devices, leading to less accurate assessments.
Innovation Solution
Implementing a method using a head-mounted display (HMD) with processors and memory to execute a visual assessment application, partitioning the field of view, rendering visual patterns, obtaining user responses, and adjusting vision correction filters to determine eyewear prescriptions dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional visual acuity assessment methods are used, then the assessment can be performed with simple equipment, but the measurement precision and accuracy are insufficient
Solution Approach 1:
The patent replaces traditional mechanical/optical vision testing equipment with a head-mounted display device that uses digital rendering and sensor-based user response tracking. The HMD presents visual patterns through a display interface and captures user responses via sensors, eliminating the need for complex optical systems while improving measurement precision through dynamic parameter adjustment and multiple measurement dimensions.
2Adaptability or versatility
If traditional visual assessment methods are used, then the testing process is simple to implement, but the adaptability of test parameters is limited
Solution Approach 1:
The patent implements dynamic adjustment of test parameters during the vision assessment process. The HMD system modifies visual pattern characteristics, presentation timing, and test conditions based on real-time user responses and performance metrics. This dynamic adaptability allows the test to optimize for each user's visual capabilities while maintaining ease of operation through automated parameter management.
Solution Approach 2:
The system incorporates feedback mechanisms where user responses to visual patterns are captured by sensors and used to adjust subsequent test parameters. The feedback loop enables real-time optimization of test difficulty, pattern type, and presentation conditions, enhancing adaptability while the automated feedback processing maintains operational simplicity.
3Ease of operation
If traditional visual assessment methods are used, then the testing can be performed in clinical settings, but the accessibility for home use is limited
Solution Approach 1:
The patent designs the HMD-based vision assessment system to function universally across multiple settings including clinical environments and home use. The device combines professional-grade measurement capabilities with consumer-friendly portability and ease of use. The system maintains measurement precision through standardized protocols and automated analysis while enabling accessibility by allowing users to perform assessments in their own environments without requiring specialized clinical infrastructure.
Data Source
AI summary
An eye exam can be performed using an electronic device in a virtual environment to determine visual susceptibility to digital screen use. The electronic device can execute a visual assessment application and display a user interface to create a 3D virtual environment. Visual content can be continuously displayed for an extended duration of time with predefined display parameters associated with a screen usage in the 3D virtual environment. The electronic device can obtain a stream of sensor data measured by the one or more sensors and determine a plurality of sequential user responses to the visual content based on the stream of sensor data. The electronic device can apply at least a screen usage prediction model to generate a screen usage guidance profile for the user based on the plurality of sequential user responses.