Abstract: A device for ophthalmologic operations comprised of a holder (1), a cutting nstrument (9) provided with a catch (10) and secured on a spring-loaded rod (7) accommodated inside of the holder (1) and having a micrometric thread (11) on the other end. Mounted on the holder (1) by means of a micrometric thread (15) is a thrust bushing (14) which carries the catch which fixes the position of this bushing (14) and is interconnected with a nut by which the rod (2) is moved.

Abstract: Device for coagulation of biological tissues, preferably the eye cornea has a casing accommodating a hollow rod having one end thereof supporting a heating element secured thereto and facing towards the eye cornea and having the other end thereof operatively connected, by means of a connecting member, with a shaft of an electric motor accommodated in the casing on which a stop for limiting movement of the hollow rod is mounted, the stop being in the form of a hollow fine adjustment screw having a dial gage in the form of a scale provided on the head of the hollow fine adjustment screw and an indicator mark made on the casing. A stop for limiting movement of the heating element is secured to a working end of the casing facing towards the eye cornea, the stop being in the form of a cantilever having a free end thereof supporting a rigid ring secured thereto coaxially with the heating element.

Abstract: According to the present invention, the device comprises a body 1 in the m of a bush with a central hole 2 accommodating a sighting aligning device 3, and a number of plates at one of the bush ends, arranged in the planes square with the plane of the sighting device and adapted to get in contact with the cornea being marked out. The face edges 9 of the plates 8 are made curved and their thickness is so selected that upon applying a required force thereto the edges would cause elastic non-destructive deformation of the cornea. The mutual arrangement of the plates depends upon the required arrangement of incisions during operation.