Abstract: An optical prosthetic device made from a material based on silicone compounds is a cured composition resulting from vulcanization of a mixture of .alpha.,.omega.-bis-trivinylsiloxyoligodimethyl(methylphenyl)-siloxane and .alpha.,.omega.-bis-trimethyl(dimethylhydro)siloxyoligomethyl(phenyl)methy lhydro-siloxane in the presence of a polyaddition reaction catalyst based on the compounds of metals of the platinum group, the ratio of the first mixture component to the second one ranging within 100:1 and 100:20 parts by mass.

Abstract: An artificial eye lens, in which there is a lens body and three elastic supporting elements fixed on the lens body. Two supporting elements are shaped as rods, while one element is shaped as an angle-piece. The rod-shaped elements are arranged on the side diametrically opposite to the angle-piece. The aforesaid two rod-like elements make an angle 45 to 90 degrees with the plane passing through the vertex of the angle-piece and through the center of the lens body. All the supporting elements are so bent out as to lie parallel to the principal optical plane of the lens body.

Abstract: An optical lens is secured to supporting setting platforms, of which one is formed by a circumferential sector conjugated with the optical element (lens) so as to form shoulders. The other of said platforms is formed by two rounded-off radial portions conjugated with each other and with the optical element. Both of the platforms have biconcave surfaces, and one of these is thicker than the other.

Abstract: A method for automatic processing of electro-oculographic signals consists in carrying out visual stimulation of a patient at a preset stimulation angle and within a preset period of time, recording the signal of the bioelectric potention of the patient's eye, amplifying said bioelectric potential signal and limiting its spectrum, measuring the amplitude of the bioelectric potential signal at preselected instants of time, and subjecting the thus-measured values of the amplitude of said signals to statistical analysis to determine a constant electro-oculographic eye potential. The time instants at which the amplitude is measured are selected by determining the global extreme values of an absolute magnitude of the bioelectric potential within a preset number of stimulation cycles, comparing the modules of the thus-fixed global extreme values to one another and comparing the time intervals between the fixed global extreme values with the stimulation period.

Abstract: The invention relates to ophthalmology and, more particularly, to a corneal ncision marker adapted for use in surgical treatment, notably that of myopia.An instrument of this invention comprises a case in the form of a bush accommodating a sight, and plates in planar arrangement at right angles to the plane of the sight. The plates are brought into contact with the cornea leaving indentations which serve as guidelines to perform incisions. According to the invention, each plate is mounted on a separate holder, the latter being attached movably radially with respect to the bush, the holders being rigidly secured in their entirety to said bush, and provision is made for a drive to effect smooth synchronized movement of the plate holders.

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.