An ophthalmological device (1) for treating eye tissue by means of pulsed laser beams (L) comprises a laser system (12) which is designed, in a first mode of operation, to generate pulsed laser beams (L) with a wavelength in the NIR infrared range and, in a second mode of operation, to generate pulsed laser beams (L) with a wavelength in the UVA ultraviolet range. The ophthalmological device (1) moreover comprises a focusing system (10) with a projection optical unit (11), which is designed, in the first mode of operation, to project the pulsed laser beams (L) in the NIR infrared range into the lens (21) of the eye, which pulsed laser beams are focused to a first spot size (d1) by means of a first zoom function (101) for the purpose of disintegrating eye tissue, and, in the second mode of operation, to project the pulsed laser beams (L) in the UVA ultraviolet range into the cornea (22) of the eye, which pulsed laser beams are focused to a second spot size (d2) which is substantially smaller than the first spot size (d1) by means of a second zoom function (102), which differs from the first zoom function (101), for the purpose of creating tissue cuts.
