Abstract: To protect tissue in the treatment of an eye (3) with a focused pulsed laser beam (21) generated by a laser system (2), e.g. a femtolaser system, operating data which define an operating area operated on by the focus (F) of the laser beam (21) during the treatment are acquired in a device (1). The device (1) comprises a processing module (14) for providing control data for the laser system (2) on the basis of the operating data and taking into consideration the light propagation in the eye. The control data limit the time of the treatment by the focus (F) at positions within the operating area in each case in such a manner that tissue damage resulting from the treatment by the laser beam (21) is essentially prevented in eye structures located outside the operating area.

Abstract: An ophthalmological apparatus (1) for breakdown of eye tissue includes a base station (2) with a light source (21) for generating light pulses and a support arm (3), with an application head (4) that can be placed onto an eye (6) mounted on the base station (2). The light pulses are transmitted from the base station (2) to the application head (4) through an optical transmission system (22). The application head (4) has a light projector (41) for focused projection of the light pulses for punctiform breakdown of eye tissue. The support arm (3) is of rigid design and, at one end, has a hinge (Rz) with a horizontally oriented rotation axis (rz), the hinge (Rz) being mounted in such a way that the application head (4) can be placed onto the eye (6) with a rotation (zrot) extending about the rotation axis (rz).

Abstract: An ophthalmological device (1) in accordance with an embodiment of the present application includes an optical transmission system (5) for transmitting femtosecond laser pulses to a projection objective (3) for projecting the femtosecond laser pulses onto or into eye (2) tissue. The ophthalmological device (1) further includes an objective changing device (4) for changing and connecting the projection objective (3) to the optical transmission system (5). The objective changing device (4) includes more than one different projection objective (3) connected mechanically with each other, and the objective changing device (4) is configured to convey one of the projection objectives (3) to the optical transmission system (5) for connecting the respective projection objective (3) to the optical transmission system (5).

Abstract: An ophthalmological device (1) comprises an optical transmission system (5) for transmitting femtosecond laser pulses to a projection objective (3) for projecting the femto-second laser pulses onto or into eye (2) tissue. The ophthalmological device (1) further comprises an objective changing device (4) for changing and connecting the projection objective (3) to the optical transmission system (5). The objective changing device (4) comprises more than one different projection objectives (3) connected mechanically with each other, and the objective changing device (4) is configured to convey one of the projection objectives (3) to the optical transmission system (5) for connecting the respective projection objective (3) to the optical transmission system (5). The objective changing device (4) makes it possible to adapt the laser-based ophthalmological device (1) for new applications without the need for extensive reconfigurations and/or costly vario-lense objectives.

Abstract: An opthalmological apparatus for breakdown of eye tissue includes a base station with a light source for generating light pulses, a support arm, with an application head that can be placed onto an eye, is mounted on the base station. The light pulses are transmitted from the base station to the application head through an optical transmission system. The application head has a light projector for focused projection of the light pulses for punctiform breakdown of eye tissue. The support arm is of rigid design with horizontal orientation and has a hinge with a horizontally oriented rotation axis, the hinge is mounted in such a way that the application head can be placed onto the eye with a rotation extending about the rotation axis. The hinge permits controlled manual docking of the application head and light projector onto the eye in a vertical direction, via a rotation movement that is easy to perform and has minimal mechanical friction.

Abstract: An opthalmological device for resolving eye tissue includes a base station with a light source for producing light pulses. Attached to the base station is a supporting arm with an application head that can be placed on an eye. The light pulses are transmitted from the base station through an optical transmission system to the application head. The application head has a light projector for the focused projection of the light pulses for point-by-point resolution of the eye tissue. The supporting arm is rigidly configured and has at one end a rotary joint with a horizontally aligned axis of rotation, wherein the rotary joint is attached in such a way that the application head can be placed on the eye with a rotation about the axis of rotation. The rotary joint makes it possible for the application head or the light projector to be manually docked in a controlled manner onto the eye in the vertical direction by means of a rotational movement that is easy to perform and has low mechanical friction.

Abstract: An ophthalmological device (1) includes an optical transmission system (5) for transmitting femtosecond laser pulses (L) onto a projection lens (3) for projection onto or into the eye tissue (21). The device (1) also includes a lens interchange device (4) designed for interchanging and connecting different projection lenses (3) to the optical transmission system (5). The lens interchange device (4) includes a number of different projection lenses (3) which are connected mechanically to one another and which can be fed to the optical transmission system (5) by a rotational or translational movement in order to connect the former to the optical transmission system (5). The lens interchange device (4) makes it possible for a user to flexibly and efficiently change the projection lens (3) so that the projection lens (3) can be changed or altered without great expenditure of time and without using a varifocal lens, even between different applications and treatment steps.

Abstract: An ophthalmological device (1) comprises a controllable optical correction element (14) for the variable modulation of the wavefront of deflected femtosecond laser pulses. A control module (13) controls the correction element (14) as a function of the deflection of the femtosecond laser pulses in such a way that the femtosecond laser pulses are focused into an image area, arranged around the optical axis (z) of the light projection module (11), on a defined treatment surface. It is possible by means of the adaptive and dynamic modulation of the wavefront of the deflected laser pulses for the laser pulses to be focused onto the treatment surface in an enlarged image area in conjunction with unchanged projection optics of the light projection module (11) such that the image field is enlarged in conjunction with an unchanging compact design of a light projection module (11) suitable for manual application.