Dynamic laser beam characteristic measurement system for...

Details Dynamic laser beam characteristic measurement system for... Dynamic laser beam characteristic measurement system for...

A - Human Necessities

61

F

A61F 9/008 (2006.01) A61F 9/01 (2006.01) G01J 11/00 (2006.01) G01M 11/02 (2006.01)

Patent

CA 2570675

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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