Pupilometer with pupil irregularity detection, pupil tracking, and pupil response detection capability, glaucoma screening capability, intracranial pressure detection capability, and ocular aberration measurement capability

• US 7,670,002 B2
• Filed: 04/04/2006
• Issued: 03/02/2010
• Est. Priority Date: 04/23/1999
• Status: Expired due to Fees

• Current Assignee: Neuroptics Incorporated
• Original Assignee: Neuroptics Incorporated
• Inventors: Oliver, Jeffrey, Siminou, Kamran, Privitera, Claudio M., Stark, Lawrence W.
• Primary Examiner(s): MANUEL, GEORGE C
• Application Number:
  US11/398,049
• Publication Number:
  US 20060181678A1
• Time in Patent Office: 1,428 Days
• Field of Search: 351/205, 351/206, 351/221, 351/222, 600/558, 623/6.64, 623/6.63, 128/898
• US Class Current: 351/205
• CPC Class Codes: A61B 3/112 for measuring diameter of pupils
• CPC Class Codes: A61B 5/163 by tracking eye movement, gaze, or pupil change
• CPC Class Codes: A61N 1/36046 of the eye
• CPC Class Codes: A61N 2005/0648 the light being directed to the eyes

Abstract

A pupilometer having image capturing means, illumination means generating and emitting light of a first wavelength, stimulation means generating and emitting light of a second wavelength, and image processing software. The image processing software receives data from the image capturing means, identifies a pupil'"'"'s dynamic response to light generated by the stimulation means, analyzes one or more components of the pupil'"'"'s dynamic response, and produces an output comprising a value indicative of a neurological condition of a patient.

Claims

1. A pupilometer comprising:

image capturing means;

illumination means generating and emitting light of a first wavelength;

stimulation means generating and emitting light of a second wavelength; and

image processing software that receives data from the image capturing means, identifies a pupil'"'"'s dynamic response to light generated by the stimulation means, analyzes one or more components of the pupil'"'"'s dynamic response, and produces an output comprising a value indicative of a neurological condition of a patient, wherein the value is a single alphanumeric scalar value that can be applied to a scale indicative of a neurological condition.

2. The pupilometer of claim 1, wherein said one or more components of the pupil'"'"'s dynamic response comprises minimum pupil aperture, maximum pupil aperture, difference between maximum and minimum pupil apertures, latency of pupil response to stimulation, pupil constriction velocity, first and second pupil dilation velocities, and pupil irregularity magnitude and location information.

3. The pupilometer of claim 1, wherein the software further identifies statistical anomalies within said one or more components of the pupil'"'"'s dynamic response and discards said anomalies.

4. A pupilometer comprising:

image capturing means;

illumination means generating and emitting light of a first wavelength;

stimulation means generating and emitting light of a second wavelength; and

image processing software that detects a pupil within an image of an eye provided by the image capturing means, measures the size of the detected pupil, measures one or more components of the pupil'"'"'s dynamic response to the light generated and emitted by the stimulation means, analyzes said one or more components, and produces an output comprising a value indicative of a neurological condition of a patient, wherein the value is a single alphanumeric scalar value that can be applied to a scale indicative of a neurological condition.

5. The pupilometer of claim 4, wherein said one or more components of the pupil'"'"'s dynamic response comprises minimum pupil aperture, maximum pupil aperture, difference between maximum and minimum pupil apertures, latency of pupil response to stimulation, pupil constriction velocity, first and second pupil dilation velocities, and pupil irregularity magnitude and location information.

6. The pupilometer of claim 4, wherein the software further identities statistical anomalies within said one or more components of the pupil'"'"'s dynamic response and discards said anomalies.