CONTROL DEVICE FOR AN OPHTHALMIC SURGICAL SYSTEM

摘要

The invention relates to a control device (101) for an ophthalmic surgical system (100), having: - a flow determination device (9) with which an actual value of a flow of fluid (QIST) in an aspiration line (7) can be determined, wherein the aspiration line (7) is coupled to a handpiece (3) for phacoemulsification of an eye lens (1), - an occlusion determination device (10) with which it is possible to determine whether an occlusion by a particle (21, 22) of the eye lens (1) is present at a suction opening of the aspiration line (7), - an evaluation unit (11) which, depending on the determined actual value of the flow of fluid (QIST) in the aspiration line (7), is able to determine a hardness (H1, H2) of the particle (21, 22) of the eye lens (1) if it has been determined by the occlusion determination device (10) that an occlusion is present, and which, depending on the hardness (H1, H2), is able to determine a first quantity (E1, E2) of an ultrasound energy that can be fed to a handpiece (3) by means of an energy source (13), and - a control unit (12) with which the energy source (13) can be controlled in such a way that, during the occlusion, it outputs the determined first quantity (E1, E2) of the ultrasound energy.