Abstract: A system for laser induced reduction of visual acuity suitable for crowd control and disabling of individuals uses an eye-safe pulsed IR source in which a laser beam is imaged onto the cornea of an individual to heat the cornea, thereby to cause defocusing and disorientation.

Abstract: The present invention relates to a surgical coupling device for detachably connecting a handpiece end to a portion of a surgical instrument, the handpiece end being provided with a recess into which a coupling portion of the instrument can be detachably slid, an interior wall of the recess having formed thereon a locking recess with which a snap type element can be brought into detachable engagement that is supported on the instrument, characterized in that the snap type element is formed on a double-sided rocker which extends substantially in axial direction and has one end on which the snap type element is arranged and has its other end in engagement with a pivot element.