发明名称 Ocular accommodative function examination apparatus
摘要 An ocular accommodative function examination apparatus for examining an accommodative function of an examinee's eye, comprises: 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 and includes a light projecting optical system which includes a light source and projects examination light to a fundus of the eye and a light receiving optical system which includes a light receiving element and receives the examination light reflected from the fundus; an analysis part which acquires variation in the refractive power of the eye gazing at the fixation target at a certain presenting position within a predetermined time based on output of the light receiving element, and determines the accommodative function including a range of accommodation and HFC (a frequency of occurrence of a high frequency component of accommodative microfluctuation) of the eye based on an acquired result; and an output part which outputs a result determined by the analysis part, wherein the analysis part determines presence/absence of accommodative constriction and presence/absence of accommodative spasm based on the determined range of accommodation and HFC.
申请公布号 US7296892(B2) 申请公布日期 2007.11.20
申请号 US20040015417 申请日期 2004.12.20
申请人 NIDEK CO., LTD. 发明人 HANAKI MIWAKO;ISOGAI NAOKI;HAYASHI AKIHIRO
分类号 A61B3/00;A61B3/09;A61B3/103;A61B3/11 主分类号 A61B3/00
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