Abstract: An eye surgical unit, comprising a connecting module to align, upon coupling of the connecting module to a connecting module of an eye surgical instrument, an end of a light guide which is included in the connecting module of the eye surgical instrument with respect to the connecting module of the eye surgical unit. During coupling, the connecting modules of the eye surgical unit and the eye surgical instrument mutually cooperate. The mutual cooperation of the connecting modules is realized through a multiple-thread screw connection of which corresponding screw connection elements, upon coupling of the connecting modules through mutual rotation of the connecting modules, mutually engage substantially simultaneously.

Abstract: The control arrangement (13) of this invention includes a casing on which the hand (22) of a medical practitioner may rest when the position of the point of focus of a laser beam onto a place to be surgically treated is sought. The arrangement includes a roller (20) operated by the thumb (21) and a ball (23) operated by the index finger (24), the roller and the ball respectively displacing the point of focus along a first coordinate axis (Z) and along second and third coordinate axes (X Y). A push button (25) operated by the middle finger (26) controls firing of the laser beam. The arrangement is used in ophthalmology.

Abstract: The apparatus of this invention is intended for observation and treatment of a patient, in particular for ophthalmological cases. Such apparatus includes an arrangement (10) for ophthalmological observation and treatment, means (12) for effecting positioning and adjustment of said arrangement (10), an underframe (14) for supporting the means (12) and said arrangement (10) as well as a head rest system (16). In this apparatus the means (12) comprises jointed means permitting rotation of the arrangement (10) around a horizontal axis. The apparatus is applied for observing and treating the eyes of a patient who may be seated or recumbent.