Non-Invasive Intraocular Pressure Detection via Corneal Image Analysis
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Solution Overview
Problem
Conventional intraocular pressure detecting devices are invasive and prone to errors due to the curvature and thickness of the cornea, necessitating the development of non-invasive devices capable of accurately determining appropriate intraocular pressure detection areas.
Innovation Solution
An intraocular pressure detecting device comprising an image capturing unit, a processor unit, and a pressure detection unit that captures eye images, determines the intraocular pressure detection area, and measures pressure using capacitive sensors to generate accurate pressure signals, reducing errors caused by corneal curvature and thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If non-invasive pressure detection is used, then patient comfort and safety are improved, but measurement precision deteriorates due to corneal curvature and thickness variations
Solution Approach 1:
The system captures images of the entire eye surface and processes them to identify specific local characteristics (corneal curvature, thickness) that affect measurement accuracy. By analyzing local eye structure properties from the captured images, the system compensates for variations in corneal geometry to improve measurement precision while maintaining non-invasive operation
Solution Approach 2:
The system changes the measurement parameters by incorporating corneal curvature and thickness data into the pressure calculation algorithm. Instead of using a single standardized measurement approach, the system adjusts calculation parameters based on the individual eye's structural characteristics to compensate for measurement errors
2Ease of operation
If external force is applied to the cornea for pressure detection, then non-invasive measurement is achieved, but measurement precision deteriorates due to corneal deformation
Solution Approach 1:
The system performs preliminary capture of eye images to determine corneal curvature and thickness before the actual pressure measurement. By obtaining structural data in advance, the system can compensate for corneal deformation effects during the measurement process, maintaining accuracy while using minimal external force
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 device provides precise intraocular pressure measurements by accurately determining the detection area and accounting for corneal curvature and thickness, enhancing the accuracy and non-invasiveness of intraocular pressure detection.
Implementation Method 1
the pressure detection unit detects the intraocular pressure detection area and correspondingly generates a pressure detection signal
Data Source
AI summary
An intraocular pressure detecting device includes an image capturing unit, a processor, and a pressure detection unit. The image capturing unit, coupled to the image capturing unit, is capable of acquiring an eye image. According to the eye image, the processor can determine an intraocular pressure detection area. After the pressure detection unit detects the intraocular pressure detection area, the intraocular pressure is calculated by the processor of the intraocular pressure detecting device.