Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent
1991-12-10
1993-08-10
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
351201, 351202, 351246, A61B 302, A61B 308
Patent
active
052353613
ABSTRACT:
Apparatus for use in optometry to determine the degree of stereo acuity present in a patient comprises a frame having a proximal end adapted to engage against the face, particularly the chin of the patient, and carrying a support structure for receiving a plurality of standardized stereograms to be capable of selectively being brought into the patient's line of vision. A test procedure utilizing the apparatus is also disclosed.
REFERENCES:
patent: 2362588 (1944-11-01), Shepard
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