Eye refractive power measurement apparatus

Details Eye refractive power measurement apparatus Eye refractive power measurement apparatus

1998-11-04

1999-11-09

Manuel, George

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

A61B 310

Patent

active

059800429

ABSTRACT:
An eye refractive power measurement apparatus including a refractive power measurement device for objectively measuring a refractive power of an eye to be examined based on reflected light from a fundus of the eye, the apparatus comprising a pupil detecting device for detecting a pupil size upon measuring the refractive power of the eye by the refractive power measurement device, a memory device for storing plurality of refractive power measurement results obtained by the measurement device and pupil detection results obtained by the pupil detecting device in correspondence therebetween, a typical value determination device for determining a typical value of the refractive power based on the refractive power measurement results and the pupil detection results stored in the memory device and an output device for outputting the typical value determined by the typical value determination device.

REFERENCES:
patent: 5406076 (1995-04-01), Mimura et al.
patent: 5500697 (1996-03-01), Fujieda
patent: 5684562 (1997-11-01), Fujieda

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