Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent
1992-12-31
1994-03-08
Arnold, Bruce Y.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
351222, 351224, 351246, A61B 302
Patent
active
052935329
ABSTRACT:
Apparatus and methods for relaxing accommodation of an eye undergoing examination or other optical or medical procedures while concurrently permitting and facilitating positioning of the subject eye. A patch, cover, or other device designed to occlude and visually stimulate the eye opposite the subject eye includes multiple light sources facing the occluded eye. The practitioner illuminates a selected one (or ones) of the light sources within the patch and directs the patient to fixate on the source. As the occluded eye moves to fixate on the illuminated source, the subject eye follows the movement, thereby repositioning itself. Occluding the eye causes the image seen by it to appear to be at infinity, rather than nearby, causing the ocular muscles of both eyes to relax. The availability of multiple light sources within the patch allows the practitioner to reposition the illuminated source relative to the eye without physically moving a wand or otherwise engaging in trial-and-error techniques requiring interruption of the examination or procedure and consequent loss of concentration.
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A catalog for Lombart Instrument (12 pages) no date available.
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A brochure for Topcon Slit Lamp SL-3D (undated) (2 pages) no date available.
A brochure for Topcon Photo Slit Lamp SL-5D (undated) (6 pages) no date available.
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Arnold Bruce Y.
Dang Hung Xuan
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