Abstract: The intraocular prosthetic lens comprises an optical lens and two diametrally opposite loop-shaped support elements. Each of the support elements is made up of two mutually intersecting arches which are fastened together with the optical lens through one of their ends. The ends of the arches adjoining the optical lens are straight-line and are set at an angle of 105 to 115 degrees to each other. The ratio of the radius of curvature of the free curvilinear ends of the arches to a maximum overall length of the intraocular prosthetic lens lies within 0.16 and 0.21.

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: An ophthalmorheographic transducer has a two-layer casing with a space defined between the layers and communicating with a vacuum source. The inner layer is shaped so as to suit the eyeball, is provided with electrodes and has a plurality of openings.

Abstract: An applanation tonometer comprises a housing, a rod accommodated in the housing and carrying a contact disk adapted to interact with the corneal surface in order to exert force thereon, a unit for measuring the force applied to the cornea, a means for registering the instant of time when the diameter of an applanation circle on the corneal surface formed due to the effect of a force applied thereto reaches a preset value, and a recording unit. The registering means is made as a sleeve arranged coaxially with the rod carrying the contact disk and traversably along the rod axis, and a contact set electrically connected to the recording unit and mechanically associated with the traversable sleeve. An additional sleeve is traversable, set coaxially with the traversable sleeve of the registering means, and the end of said additional sleeve is concave-shaped.

Abstract: The ophthalmotonometer of the invention comprises a frequency-output transducer of linear motions which correspond to intraocular pressure; a reference-frequency generator; a frequency comparator whose inputs are connected to the outputs of the frequency-output transducer and of the reference-frequency generator, a difference-frequency divider connected to outputs of the frequency comparator; a circuit for measurement of the cycle of difference-frequency oscillations connected to outputs of the reference frequency generator and the frequency divider, said cycle corresponding to intraocular pressure in millimeters of mercury; and a measurement results registration circuit connected to outputs of the cycle measurement circuit.

Abstract: A device for processing electro-oculographic signals comprises series-conted a sensor of an EOG signal, an amplifier-multiplexer, a low-pass filter, a high-pass filter, an analog-to-digital converter, a stationary disturbance detection unit, a stationary disturbance suppressing unit, a multiplier, an adder-accumulator, a digital comparator, a time gate, a memory unit, a digital discriminator, and a control unit. In addition, the device comprises a stimulation period determination unit, an extrema determination unit, a first function generator, a second function generator, a classification unit, a visual stimulator, a calibrator, and a data display unit. The control unit has a plurality of outputs connected to respective additional inputs of the aforesaid units.

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: An intraocular lens is disclosed in which the support part is made of a cellular material having closed voids to ensure buoyancy of the lens.

Abstract: An intraocular lens implant comprises a lens and three support members. The support members disposed on one and the same diametrical side are made in the form of bent feet terminating in loops facing toward the periphery of the lens. The sector-shaped member is cambered toward the periphery of the lens and all support members lie in the plane of the lens.

Abstract: The invention generally relates to medicine, but more particularly, to an strument for making corneal incisions useful, for example, in the surgical treatment of myopia.The instrument disclosed herein includes a case, a holder of a cutting member being mounted within the case for reciprocation relative thereto. The holder is provided with a lock member for a cutting member at one end thereof, its opposite end accommodating a stem engaging a screwnut type drive urging said holder into motion. A stop is mounted on the case anteriorly relative to said holder. According to the invention, the portion of the holder facing the stop which is rectangular in cross-section, is preferably provided with a rectangularly fashioned groove along with a lever clip mounted therein, to secure the cutting member in position.

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.

Abstract: An instrument for making out the central optical zone of the cornea having an oblong body featuring the edge of one of its ends sharpened, while the diameter of the body across said end equals a preset diameter of the central optical zone, and a sight is accommodated inside the body square with the longitudinal axis thereof, the sighting point of said sight lying on the longitudinal axis of the oblong body of the instrument.