Dynamic laser beam characteristic measurement system for ophthalmic surgery and associated methods
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United States of America Patent
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Issued Date -
Jun 21, 2007
app pub date -
Dec 20, 2005
filing date -
Dec 20, 2005
priority date (Note) -
Abandoned
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Abstract
A system and method for determining and monitoring a laser ablation volume of a cornea. The method includes sampling a beam of laser shots from a pulsed treatment laser as a reference portion. A fluence distribution of the beam reference portion is measured, and a laser beam characteristic is calculated from the measured fluence distribution. A system for determining and monitoring a laser ablation volume of a cornea includes a beamsplitter that is positioned to split a beam of laser shots from a pulsed treatment laser into a corneal portion and a reference portion. Devices are provided for measuring a fluence distribution of the beam reference portion and for calculating an ablation volume per laser shot from the measured fluence distribution.
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