Patent ID: 8920360
Filing Date: 2014-12-30
Classification: A61B,A61F,A61M

Abstract:
1. A control apparatus for an ophthalmic surgical system for phacoemulsification of an eye lens to be treated, the ophthalmic surgical system having a parameter and including a phacoemulsification handpiece having a needle and an aspiration line, the control apparatus comprising: an optical system configured to generate an image of an object region wherein at least part of the eye lens to be emulsified and at least part of the needle are arranged; an image evaluation unit configured to evaluate said image such that at least one evaluation variable, which is dependent on an occlusion of said aspiration line, is determined; said evaluation variable being at least one of a kinematic measurement variable, a geometric measurement variable and an optical measurement variable of a particle of the eye lens generated by emulsification; a control unit configured to determine a control variable in dependence upon at least one of said evaluation variables; and, said control variable being configured to control a value of the parameter of the ophthalmic surgical system.