Head-Mounted Goggles With LED Wells for Pupillary Reflex Testing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for pupillary light reflex stimulation fail to prevent cross-contamination of the contralateral eye during testing, and existing solutions for vestibular testing often require fixation avoidance, leading to suboptimal assessment due to eye movement and lack of standardization in mechanical obstructions for varying facial shapes.
Innovation Solution
A portable head-mounted goggles system with LED wells and independent cameras that provide direct and consensual pupillary light reflex stimulation, ensuring no light reaches the contralateral eye and allowing for separate stimulation of each eye, along with gaze guidance to prevent fixation during examination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical obstruction is used to prevent light from reaching the contralateral eye, then cross-contamination is reduced, but the solution is not standardized due to varying facial shapes and sizes
Solution Approach 1:
The patent replaces mechanical obstructions with optical isolation using LED wells and controlled light paths. The LED wells create defined optical channels that guide light precisely to the intended eye without relying on mechanical barriers, thereby eliminating standardization issues related to facial variations.
Solution Approach 2:
The patent implements localized light containment within each LED well, creating distinct optical zones for each eye. This local quality approach ensures that light stimulation is confined to the specific eye being tested, preventing cross-contamination without requiring global mechanical obstructions.
2Reliability
If opaque visor is used to occlude vision during vestibular testing, then fixation is prevented, but eyes tend to hover all around or take eccentric positions precluding optimal assessment
Solution Approach 1:
The patent divides the visual field into controlled segments using LED wells that provide localized light sources. This segmentation allows the system to guide eye movements to specific positions without creating a complete opaque barrier, enabling both fixation prevention and precise eye position assessment.
Solution Approach 2:
The patent introduces LED light sources as intermediaries between the occlusion mechanism and the eyes. These light sources provide visual cues that guide eye positioning without inducing fixation, serving as a mediator that reconciles the conflicting requirements of preventing fixation while maintaining optimal eye position for assessment.
3Ease of operation
If current stimulation methods are used, then pupillary light reflex can be observed, but results are contaminated due to unintended eye participation
Solution Approach 1:
The patent uses the LED well structure to create flexible optical containment that adapts to the eye's position and shape. This flexible optical design maintains simple operation while preventing light leakage to the contralateral eye, thereby ensuring accurate pupillary response measurement.
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 prevents cross-contamination of the contralateral eye and allows for accurate pupillary response assessment, enabling standardized and portable pupillometry without inducing fixation, thereby improving the reliability and usability of eye tests during medical evaluations.
Implementation Method 1
A portable head-mounted goggles system with LED wells and independent cameras that provide direct and consensual pupillary light reflex stimulation
Implementation Method 2
The cameras are independent of each other and are configured to capture images and transmit the images to a remote computing device
Data Source
AI summary
The various embodiments herein provide a system and method for direct and consensual pupillary light reflex stimulation without cross-contamination of contralateral eye. The embodiments also provides a portable and easy-to-use system and method for eye stimulation of pupillary response assessment for medical evaluation. The system is a portable and head-mounted goggles system is provided for eye stimulation of pupillary response assessment. The head-mounted goggles system comprises a visor, a pair of LEDs, a pair of well-arrangement and two cameras. The well-arrangements are designed in such a way that the LEDs provide a narrow light cone only to the eye under observation and prevents the contralateral eye from being stimulated. The cameras are independent of each other and are configured to capture images and transmit the images to a remote computing device through wired and/or wireless means.