Smart Contact Lens Pupil Dilation Sensor for Continuous Monitoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current pupillometric measurement systems rely on external observers and controlled conditions, limiting their ability to continuously monitor pupillary responses in real-time and across various contexts, including awake and asleep states.
Innovation Solution
Integration of a pupil dilation sensor into a contact lens substrate, combined with other sensors to track factors affecting pupillary response, enabling continuous monitoring and determining mental context in various conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external observer-based pupillometric measurement systems are used, then measurement precision can be achieved under controlled conditions, but the system cannot continuously monitor pupillary responses in real-time across various contexts including awake and asleep states
Solution Approach 1:
The contact lens system enables self-monitoring of pupillary responses without requiring external observers. The sensor is integrated into the contact lens itself, allowing the eye to serve as both the subject and the measurement platform, enabling continuous monitoring across all states including sleep.
Solution Approach 2:
The pupillary response sensor is merged with the contact lens substrate, combining the monitoring function with the existing eyewear infrastructure. This integration allows the system to function continuously without adding separate external devices, enabling versatile monitoring across different contexts.
2Reliability
If external observer-based systems are used, then controlled measurement conditions can be maintained, but continuous real-time monitoring is limited
Solution Approach 1:
The contact lens-based sensor enables continuous pupillary response monitoring without interruption. The sensor remains in constant contact with the eye, allowing uninterrupted data collection across all states including wakefulness, transition states, and sleep, eliminating the need for repeated external measurements.
3Productivity
If contact lens integration is implemented, then continuous real-time monitoring is enabled, but device complexity increases
Solution Approach 1:
The contact lens is designed to serve multiple functions: it maintains its primary role as a corrective or protective eyewear component while simultaneously integrating pupillary response sensing capabilities. This multi-functionality approach allows the same device to provide both vision correction and physiological monitoring without requiring separate dedicated sensors.
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
Enables real-time tracking and evaluation of pupillary responses, allowing for deterministic use in applications like reactive, predictive, and adaptive systems, independent of external observers and controlled conditions.
Implementation Method 1
pupil dilation sensor integrated into a contact lens substrate
Data Source
AI summary
The smart contact lens system hereby proposed, integrates a number of electronic, electro-optical or optical components on the contact lens substrate. The system, inter alia, is arranged to identify and track changes in pupillary response due to mental task engagement, also known as task-evoked pupillary response. To this end, the system proposed tracks a variety of conditions affecting reflexes such as pupillary reflex or accommodation reflex, in order to compute the extent of pupil dilation attributable to the mental task engagement. Another aspect of present invention is a smart contact lens system, which minimizes pupillary reflex caused by light by controlling the amount of light entering the eye. When pupillary reflex is non-existent, computing a task-evoked pupillary response becomes a much easier task.