Ocular accommodative function examination apparatus

Details Ocular accommodative function examination apparatus Ocular accommodative function examination apparatus

2004-07-29

2008-03-18

Mai, Huy K (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

C351S211000

Reexamination Certificate

active

07344247

ABSTRACT:
An ocular accommodative function examination apparatus for examining an accommodative function of an examinee's eye, includes: a fixation target presenting optical system which presents a fixation target at a presenting position to the eye, the presenting position being changeable in a direction of a visual axis of the eye; a refractive power measuring optical system which measures refractive power of the eye; an analysis part which acquires variation or fluctuation in the refractive power of the eye gazing at the fixation target at a certain presenting position within a predetermined time based on a result of measurement by the measuring optical system, and determines tho accommodative function of the eye based on the acquired variation or fluctuation; a display part which displays a result determined by the analysis part; and a control part which controls presenting of the fixation target to perform at least one of simple examination for determining the accommodative function with respect to a first presenting position and thorough examination for determining the accommodative function with respect to a second presenting position, the second presenting position including different positions more than the first presenting position.

REFERENCES:
patent: 5463430 (1995-10-01), Isogai et al.
patent: 2005/0007551 (2005-01-01), Wakil et al.
patent: A 2003-70740 (2003-03-01), None
Suzuki et al., “Evaluation of Accommodative Function by High Frequency Component of Accommodative Microfluctuation,” Jpn J Vis Sci, vol. 22, pp. 93-97, 2001.

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