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 8,235,526 B2
• Filed: 02/12/2010
• Issued: 08/07/2012
• Est. Priority Date: 04/23/1999
• Status: Expired due to Term

• Current Assignee: Neuroptics Incorporated
• Original Assignee: Neuroptics Incorporated
• Inventors: Stark, Lawrence W., Privitera, Claudio, Siminou, Kamran, Oliver, Jeffrey
• Primary Examiner(s): MANUEL, GEORGE C
• Application Number:
  US12/704,527
• Publication Number:
  US 20100195049A1
• Time in Patent Office: 907 Days
• Field of Search: 351/205, 351/206
• 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 that has image capturing means, a light source that emits light; and imaging software that processes image data obtained by the image capturing means and produces an output is described. The output comprises a single scalar value indicative of a neurological condition of a patient, wherein the scalar value can be applied to a scale indicative of a neurological condition. The image data comprises one or more components of the pupil'"'"'s dynamic response to light emitted by the light source.

Claims

1. A pupilometer comprising:

image capturing means;

a light source that emits light; and

imaging software that processes image data obtained by the image capturing means and produces an output comprising a scalar value indicative of a neurological condition of a patient, wherein the scalar value can be applied to a scale indicative of a neurological condition,

wherein the image data comprises one or more components of the pupil'"'"'s dynamic response to light emitted by the light source.

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, or pupil irregularity magnitude and location information.

3. The pupilometer of claim 1, wherein said one or more components of the pupil'"'"'s dynamic response comprises minimum pupil aperture.

4. The pupilometer of claim 1, wherein said one or more components of the pupil'"'"'s dynamic response comprises maximum pupil aperture.

5. The pupilometer of claim 1, wherein said one or more components of the pupil'"'"'s dynamic response comprises difference between maximum and minimum pupil apertures.

6. The pupilometer of claim 1, wherein said one or more components of the pupil'"'"'s dynamic response comprises latency of pupil response to stimulation.

7. The pupilometer of claim 1, wherein said one or more components of the pupil'"'"'s dynamic response comprises pupil constriction velocity.

8. The pupilometer of claim 1, wherein said one or more components of the pupil'"'"'s dynamic response comprises first and second pupil dilation velocities.

9. The pupilometer of claim 1, wherein said one or more components of the pupil'"'"'s dynamic response comprises pupil irregularity magnitude and location information.

10. The pupilometer of claim 1, wherein said one or more components of the pupil'"'"'s dynamic response comprises the pupil'"'"'s size and shape.

11. 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.