Patent ID: 9017315
Filing Date: 2015-04-28
Classification: A61F

Abstract:
1. An ophthalmological device for processing eye tissue using femtosecond laser pulses comprising: a projection optical unit for the focused projection of the femtosecond laser pulses into the eye tissue, a first beam-deflecting scanner system, disposed upstream of the projection optical unit, configured to scan the eye tissue with the femtosecond laser pulses along a processing line, a second beam-deflecting scanner system disposed upstream of the first scanner system, configured to scan the eye tissue with the femtosecond laser pulses on a scanning curve (f) superimposed on the processing line, with a scanning speed that is faster than the scanning speed of the first beam-deflecting scanner system, comprising a first scanning axis and a second scanning axis, the first scanning axis and the second scanning axis being oriented orthogonally with respect to one another, the second scanner system being configured to deflect the femtosecond laser pulses in an oscillating fashion about the first scanning axis and about the second scanning axis, and the first scanner system having a greater degree of excursion in comparison with the second scanner system, and a control module configured to control the deflection of the femtosecond laser pulses about the first scanning axis and the deflection of the femtosecond laser pulses about the second scanning axis in accordance with at least one of defined curve shape, defined curve amplitude and defined curve orientation of the scanning curve (f).