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US 11,452,446 B2Granted
Ophthalmoscope using natural pupil dilation
AssigneeInternational Business Machines Corporation
InventorsAlexandros Karargyris, Thomas G. Zimmerman
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Abstract
An ophthalmic device having a single or dual compartment configuration selectively emits infrared and visible light beams onto one or a pair of target eyes. The device performs eye fundus imaging and aids in the detection of ailments as indicated by anomalies in the pupillary reflex.
Claims7
A method for examining a pair of target eyes of a patient using an apparatus, the method comprising:
- covering the pair of target eyes with one or a pair of external-light blocking eyepieces of the apparatus, the covering comprising positioning the pair of external-light blocking eyepieces in contact with the patient's face;
- monitoring pupil dilation of the target pairs of eyes for a period of time while the one or the pair of external-light blocking eyepieces are in contact with the patient's face;
- emitting, by a pair of light sources of the apparatus based on the monitoring, infrared light at the pair of target eyes;
- detecting, using a pair of image sensors of the apparatus, infrared light reflected by the pair of target eyes in response to the emission of infrared light by the pair of light sources;
- measuring a response time of pupil constriction in the first eye relative to pupil constriction in a second eye in the pair of target eyes;
- and
- generating a delta report comprising data showing a divergence between the measured response times of pupil constriction in the first eye and the second eye.
4 more elements
Dependencies are inferred from the claim text.