Apparatus for the self-examination of the human eye

Details Apparatus for the self-examination of the human eye Apparatus for the self-examination of the human eye

1985-04-02

1987-07-28

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

351222, A61B 302

Patent

active

046828672

ABSTRACT:
Apparatus for self-examination of the human eye comprising a pen light for generating a beam of light, a reflecting sphere for orthogonally reflecting the beam through an opaque disc having a pin hole and a cylindrical head enclosing the reflecting sphere and opaque disc. The reflecting sphere is adjustable along its axis, and functions to reflect a uniformly diffuse beam of light through the pin hole. When the pin hole is at the anterior focus of the human eye and along its pupilary axis, a viewer can see opacities in the eye.

REFERENCES:
patent: 3439978 (1969-04-01), Moore et al.
patent: 3903870 (1975-09-01), Berndt

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