Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent
1988-07-25
1991-01-29
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
354243, A61B 302
Patent
active
049881868
ABSTRACT:
Apparatus for quantifying visual function defects comprises a plurality of testing elements (1) having a surface (3) provided with a selected visual stimulus (5) and with a machine readable code (6) for uniquely identifying the stimulus (5). The apparatus further comprises a light pen (12) for reading the code (6) on each element (1) and a microprocessor (20) for analysing the codes (6) read by the light pen (12) in order to quantify the visual function defect.
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Burgess Arthur E.
Hill Adrian R.
Reeves Barnaby C.
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