Eyeball condition observation method and eyeball condition observation system
A non-invasive eyeball observation method using oral cavity near-infrared light emission and capture addresses the limitations of existing methods, enabling eyeball condition observation and measurement regardless of eye openness.
JP7619621B2Active Publication Date: 2025-01-22KANSAI MEDICAL UNIVERSITY
Patent Information
- Application Number
- JP2021059445
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-03-31
- Publication Date
- 2025-01-22
- Estimated Expiration
- 2041-03-31
AI Technical Summary
Technical Problem
Existing methods for observing eyeball conditions require the eyes to be open and are invasive when closed, such as the search coil method, or limited in duration by anesthesia.
Method used
A non-invasive method using a light emitting member in the oral cavity emitting near-infrared light (800-900 nm) that passes through the maxillary sinus, sclera, and pupil, captured by a near-infrared camera to observe eyeball conditions without direct attachment to the eyeball.
Benefits of technology
Enables non-invasive observation of eyeball conditions regardless of eye openness, allowing measurement of eye position and pupil diameter without equipment attachment, suitable for long-term or sleep-time observations.
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Smart Images
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Abstract
To provide an eyeball state observation method and an eyeball state observation system that can be used both when eyes are opened and closed and allow the state of an eyeball to be observed in a non-invasive manner without mounting instruments such as a measuring instrument on the eyeball directly.SOLUTION: An eyeball state observation method includes: a step for arranging a light emission member 10 in the oral cavity of a user 1; a step for emitting light of a wavelength of 800 nm or more and 900 nm or less from the light emission member 10; and a step for imaging an eye socket part of the user 1 with a near infrared camera 30. The eyeball state observation system includes: the light emission member 10 arranged in the oral cavity of the user 1; a light source device 20 for emitting light of a wavelength of 800 nm or more and 900 nm or less from the light emission member 10; and the near infrared camera 30 for imaging the eye socket part of the user 1.SELECTED DRAWING: Figure 1
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Citation Information
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