Objective retinal response recorder

Details Objective retinal response recorder Objective retinal response recorder

1979-02-12

1981-03-10

Sacher, Paul A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

351 36, A61B 306

Patent

active

042550238

ABSTRACT:
A retinal response recorder that is fully automatic, comprises a light stimulator, with means for a patient to position his head, such that his eye is on the horizontal axis of the stimulator. Means are provided for selecting any one of the selected number of light beams directed from the stimulator to the eye of the patient at selected angular positions above and below the horizontal and left to right of the vertical plane through the axis of the stimulator. Appropriate electrodes are positioned on the skin surface of the patient to record electro-muscular potentials generated by the retina of the eye. Means are provided for a prearranged program of selection of stimulator spots. If the eye sees the spot of light a retinal response potential is generated and/or a visually evoked response is generated. These signals, one or both, go to amplifiers with selected filter characteristics, and then to a display-recorder apparatus, so that the magnitude of the response can be determined with regard to the specific position of the spot of light.

REFERENCES:
patent: 3421498 (1969-01-01), Gans
patent: 3883235 (1975-05-01), Lynn et al.
Design, "On the Line of Sight", pp.24-31, Apr. 1959.

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