Circular Eye Mark Chart for Quantitative Monocular Diplopia Assessment
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Solution Overview
Problem
Current methods fail to provide a quantitative and easy means for patients to examine the degree of monocular diplopia, a condition often associated with astigmatism and presbyopia, which affects older individuals.
Innovation Solution
A method utilizing an eye mark chart with circular marks of varying diameters, where patients observe these marks to determine the degree of diplopia based on the view angle at which double vision images are circumscribed, allowing for a quantitative assessment of monocular diplopia.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If direct inspection methods are used to examine monocular diplopia, then the examination can be performed, but the method is not quantitative and not easy to operate
Solution Approach 1:
The invention changes the examination parameter from qualitative direct inspection to quantitative measurement based on view angle. By using circular eye marks of different diameters and determining which mark produces circumscribed double vision images, the method converts the subjective sensation of diplopia into an objective quantitative measurement expressed in view angles, thereby achieving both precision and ease of operation
Solution Approach 2:
The invention introduces an intermediary tool - the eye mark chart with specifically designed circular marks - that mediates between the patient's subjective diplopia sensation and the examiner's quantitative assessment. The chart serves as a mediator that transforms the clinical symptom into a measurable parameter through the view angle of circumscribed images
2Adaptability or versatility
If multiple examination methods are proposed, then comprehensive examination is achieved, but the complexity of the examination system increases
Solution Approach 1:
The invention creates a universal examination tool - the eye mark chart - that can be used for quantitative assessment of monocular diplopia without requiring complex equipment. The single chart design serves multiple purposes: it provides standardized stimuli, enables quantitative measurement, and can be used in various clinical scenarios, thereby achieving comprehensive examination capability without increasing system complexity
Data Source
AI summary
In order to examine a degree of monocular diplopia is easily examined in a quantitative manner, a plurality of circular eye marks are seen from a predetermined examination distance with a single eye of a patient to find a particular eye mark whose double vision images are observed to be circumscribed each other, and a degree of monocular diplopia is determined by a view angle of the relevant circular eye mark. Since the eye mark is formed as a circular pattern, a degree of monocular diplopia can be examined irrespective of an axial direction along which double vision images appear.