Device for the measurement of the size of an eye pupil

Details Device for the measurement of the size of an eye pupil Device for the measurement of the size of an eye pupil

1975-08-19

1977-02-15

Dixon, Harold A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

351 17, A61B 310

Patent

active

040079805

ABSTRACT:
A device for measuring the size of an eye pupil, particularly with non-cooperating patients, has a body which contacts the eye and carries on it an illuminating light source, a series of light detectors and an optical system for collecting the divergent light from the illuminating source and directing such light towards the iris of the eye. A stimulus light source can also be included for directing stimulus light through the pupil and onto the retina.

REFERENCES:
patent: 3820879 (1974-06-01), Frisen
patent: 3954329 (1976-05-01), Pomerantzeff
Allen Gonoscope Prism by Bausch & Lomb (1947), pp. 2-5.
Oosterhuis et al., "Binocular Fundus Reflectometry," Ophthal Res. I: pp. 109-123 (1970).

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