HMD Modular Eye Testing via Stereo Vision and Tracking
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Solution Overview
Problem
Current eye examination technologies are complex and inefficient, failing to provide flexible and comprehensive testing that leverages stereo vision and eye tracking capabilities, leading to patient fatigue and inattentiveness during eye tests.
Innovation Solution
A modular and flexible eye testing system utilizing a head-mounted display (HMD) that administers a series of tests, including Visual Acuity, Contrast Sensitivity, Color Vision, and Visual Fields, using stereo vision and eye tracking capabilities to provide accurate and reliable results, with voice recognition and adjustable conditions to enhance patient experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional eye examination apparatus are used, then comprehensive eye testing can be performed, but the device complexity and patient fatigue increase
Solution Approach 1:
The patent integrates multiple eye testing functions (visual acuity, contrast sensitivity, color vision, stereo vision, and visual fields) into a single HMD-based system. The head-mounted display serves as a universal platform that can administer various types of eye tests through software modules, eliminating the need for multiple separate traditional apparatus while maintaining comprehensive testing capability.
Solution Approach 2:
The patent replaces complex mechanical eye testing apparatus with a digital/HMD-based system. Instead of using physical charts, lenses, and mechanical devices, the system uses head-mounted displays to present visual stimuli and integrated sensors to capture eye responses, substituting mechanical systems with electronic and optical components that reduce overall device complexity.
2Measurement precision
If traditional eye examination methods are used, then visual function can be measured, but patient attention and engagement decrease
Solution Approach 1:
The patent transitions from traditional two-dimensional eye charts and stimuli to immersive three-dimensional virtual environments displayed through the HMD. This dimensional enhancement creates more engaging and varied visual stimuli that maintain patient attention while accurately measuring visual function across multiple dimensions including depth perception and stereo vision.
Solution Approach 2:
The system incorporates automated eye tracking and gaze detection capabilities that continuously monitor patient attention and engagement without requiring constant manual intervention. The HMD sensors automatically detect eye movements and fixation patterns, providing real-time feedback to adjust stimuli and maintain patient engagement throughout the examination.
3Ease of operation
If HMD is used for eye testing, then patient engagement improves, but test flexibility and selection capability are limited
Solution Approach 1:
The patent implements a dynamic and modular software architecture that allows the HMD system to adaptively select and administer different eye test modules based on patient needs, age, and clinical indications. The system can dynamically adjust test parameters, stimulus presentation, and measurement protocols to provide flexible testing options while maintaining patient engagement through the immersive HMD interface.
Data Source
AI summary
Methods and systems for administering modular eye tests to a patient via a head mounted display (HMD) device. In some embodiments, the HMD device receives selection of a test module associated with a specific eye test which has been downloaded from an application store, provides instructions to a patient concerning the specific eye test, receives patient input data responsive to the specific eye test instructions, and stores the patient input data in a patient database. In some embodiments, the process also includes the HMD device determining that the test module was selected by the patient, determining that the specific eye test results significantly deviate from a baseline model of the patient and then transmitting the specific eye test results to an eye doctor associated with the patient.