Device for the measurement of electrical potentials of the eye

Details Device for the measurement of electrical potentials of the eye Device for the measurement of electrical potentials of the eye

1981-02-24

1983-06-07

Corbin, John K.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351221, 351160R, A61B 310, G02C 704

Patent

active

043868312

ABSTRACT:
A corneal lens (1) is provided with a measurement electrode (4), a portion of which being flush with the concave surface of the lens or protruding from said surface, in such a manner to be in service position directly in contact with the cornea of the eye. The convex surface of the lens comprises pins (2) to maintain open the eyelids.
This device allows to obtain without any inconvenient for the subject an electroretinogram usable for the ophthalmologist's diagnostic.

REFERENCES:
patent: 4109648 (1978-08-01), Larke et al.
patent: 4169664 (1979-10-01), Baily
IEEE Transactions on Biomedical Engineering, vol. BME 22, No. 5, Sep. 1975, A. Troelstra et al.: "The Electrical Response of the Human Eye to Sinusoidal Light Stimulation," pp. 369-378.

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