Ophthalmic surgical handpiece for processing an eye lens, ophthalmic surgical device, ophthalmic surgical system and method for operating an ophthalmic surgical handpiece

摘要

The invention relates to an ophthalmic surgical handpiece (3) for processing an eye lens (52), with a treatment needle (14) and an aspiration line (41) for removing an aspiration liquid, with a magnetic field generator (33) for acting on the aspiration line (41) at least partially a predetermined magnetic field and a magnetic sensor unit (32) for detecting the magnetic field in the area of the aspiration line (41) and for providing a sensor signal depending on the detected magnetic field.