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US 2008/0291398 A1Published application
Binocular indirect ophthalmoscope fixation light
OwnerAndrew Peter Davisinventor
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Abstract
A binocular indirect opthalmoscope assembly and fixation light system is disclosed for easily directing the patient's line of sight in a direction that places the optic nerve and surrounding vessels in the center of the examiner's view. The fixation system includes two fixation light assemblies that may be mounted onto the binocular indirect opthalmoscope assembly and activated by a motion sensor.
Claims18
A binocular indirect opthalmoscope assembly comprising:
- an opthalmoscope housing having a right and a left eyepiece for use by an examiner;
- an optical system contained in the opthalmoscope housing for reflecting light along a optical viewing axis to each of the eyepieces;
- a binocular indirect fixation system, comprising;
- a first fixation light source configured to direct a patient' gaze so as to place the optic nerve and surrounding retinal vessels of the eye under examination in the center of the examiner's view;
- and
- a second fixation light source configured to be hidden from view by the patient when the patient's gaze is directed so as to place the optic nerve and surrounding retinal vessels of the eye under examination in the center of the examiner's view.
3 more elements
A binocular indirect fixation system for use in association with an indirect opthalmoscope assembly to enable an examiner to examine a patient's retina, comprising:
- a first fixation light source configured to direct a patient' gaze so as to place the optic nerve and surrounding retinal vessels of the eye under examination in the center of the examiner's view;
- and
- a second fixation light source configured to be hidden from view by the patient when the patient's gaze is directed so as to place the optic nerve and surrounding retinal vessels of the eye under examination in the center of the examiner's view.
Dependencies are inferred from the claim text.