Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1998-10-29
2000-09-19
Manuel, George
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
A61B 310
Patent
active
061201499
ABSTRACT:
An eye refractive power measurement apparatus including measurement device for objectively measuring a refractive power of an eye to be examined, the apparatus comprising memory device for storing a plurality of measurement results obtained by the measurement device, typical value determination device for determining a typical value of the measurement results based on the plurality of the measurement results stored in the memory device, judging device for judging whether or not the eye possibly has low hyperopia based on the plurality of the measurement results stored in the memory device, recommendation value determination device for determining a recommendation value which is different from the typical value if the judging device judges that the eye possibly has low hyperopia and data output device for outputting data indicating the typical value and/or the recommendation value.
REFERENCES:
patent: 5406076 (1995-04-01), Mimura et al.
patent: 5500697 (1996-03-01), Fujieda
patent: 5777718 (1998-07-01), Kohayakawa
patent: 5805268 (1998-09-01), Hosoi et al.
patent: 5892567 (1999-03-01), Hosoi et al.
Manuel George
Nidek Co. Ltd.
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