发明名称 |
DETERMINING GLOBAL SHAPE PARAMETERS OF A CORNEA USING AN ASPHERIC TORIC SURFACE MODEL. |
摘要 |
A method of determining global shape parameters of a cornea includes determining a height map of a cornea by: illuminating a cornea of an eye using a stimulator source having a plurality of point sources; capturing a reflected image of the plurality of point sources and determining a position of reflections of the respective plurality of point sources and deriving the height map of the cornea based on a position of the plurality of point sources and the position of the reflections of the respective plurality of point sources; fitting the height map as derived to a toric aspheric model to obtain a global fitting of the corneal surface to the toric aspheric model and; using the global fitting to determine one or more parameters related to an astigmatism of the cornea. |
申请公布号 |
NL2012004(C) |
申请公布日期 |
2015.06.26 |
申请号 |
NL20132012004 |
申请日期 |
2013.12.20 |
申请人 |
I-OPTICS B.V. |
发明人 |
DE PAZ SICAM VICTOR ARNI;ENSING RONALD MATIJS |
分类号 |
A61B3/036;A61B3/107 |
主分类号 |
A61B3/036 |
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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