发明名称 |
Method and system for improving accuracy in autorefraction measurements by including measurement distance between the photorecptors and the scattering location in an eye |
摘要 |
A method and associated system improve accuracy in objective refraction measurements by including the measured distance between the photoreceptors of a subject's eye and the scattering location of light during the objective refraction measurements. Chromatic aberrations in the objective measurements are also compensated. The distance between the photoreceptors and the scattering location may be determined by adjusting a distance between a rotating speckled light pattern and an eye until the speckled light pattern appears to be stationary, or by employing a Scheiner disk.
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申请公布号 |
US7494220(B2) |
申请公布日期 |
2009.02.24 |
申请号 |
US20030640321 |
申请日期 |
2003.08.14 |
申请人 |
ADVANCED MEDICAL OPTICS, INC. |
发明人 |
COPLAND RICHARD JAMES |
分类号 |
A61B3/00;A61B3/02 |
主分类号 |
A61B3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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