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US 2019/0313900 A1Published application
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.
Claims5
An apparatus comprising a housing unit, the housing unit comprising a first compartment and a second compartment operatively connected to one or more power sources, each of the first compartment and the second compartment comprising:
- a light source comprising an infrared light source and a visible light source, the light source being operatively connected a power source;
- an image sensor positioned adjacent to the light source along a first axis, wherein the light source is either inline or coaxial relative to the image sensor;
- a lens positioned between the light source and the image sensor, inline relative to the image sensor along the first axis;
- an opening having an external-light blocking eyepiece, the opening being positioned adjacent to the light source opposite the lens and inline relative to the lens along the first axis;
- an input/output (I/O) device;
- and
- at least one control unit comprising a processor and a tangible storage device storing program instructions executable by the processor, the program instructions comprising instructions to:
- emit, by respective infrared light sources of the first compartment and the second compartment, infrared light in the direction of the opening for a period of time by energizing the infrared light source via the power source;
- capture, by respective image sensors of the first compartment and the second compartment, a reflection of the infrared light;
- identify, by respective image sensors of the first compartment and the second compartment, an image of an eye by analyzing the captured reflection of the infrared light;
- measure, by respective image sensors of the first compartment and the second compartment, pupil dilation in the eye by analyzing the identified image of the eye;
- and
- determine, by the processor, for each of the first compartment and the second compartment, that the pupil is dilated by a first amount greater than or equal to a pre-configured dilation measurement;
- detect, by the image sensor of the first compartment, a response time of pupil constriction in the eye positioned at the opening of the first compartment, in response to emitting the at least two beams of visible light in the first compartment, wherein emission of the at least two beams of visible light in sequence is exclusive to the first compartment for the period of time for visible light emission;
- generate a delta report comprising data showing a divergence between the measured response time of pupil constriction of the eye in the first compartment and the measured response time of pupil constriction of the eye in the second compartment;
- and
- output, by the I/O device, the delta report.
14 more elements
Dependencies are inferred from the claim text.