Systems for differentiating left and right eye images
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United States of America Patent
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Aug 30, 2011
Grant Date -
Apr 16, 2009
app pub date -
Dec 18, 2008
filing date -
Feb 19, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and systems for determining whether an image is of a left eye or a right eye may be used to enhance laser eye surgery systems and techniques. Methods generally involve locating an iris center and/or pupil center on an image of the eye, locating a corneal vertex and/or at least one reflection on the image, and determining whether the image is of a left eye or a right eye, based on the location of the corneal vertex and/or reflection(s) relative to the iris center and/or pupil center. Systems include a laser emitting a beam of an ablative light energy and a computer processor having a computer program for determining whether the image is of a left eye or a right eye, based on a location of the corneal vertex and/or reflection(s) relative to the iris center and/or pupil center.
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