Alexandr Chuprov

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A dependency was found between total protein content and cataract maturity (P = -0.91, p < 0.01). LPO intensity sharply increased and remained stably high after appearance of lens opacity. A strict negative correlation was found between the content of polyunsaturated fatty acids in earwax and lens nucleus (P = -0.7, p < 0.01). The content of conjugated(More)
The authors analyze the results of one-year activity of a room for contact correction of vision at the Ophthalmology Course of the Kirov Branch of the Perm Medical Institute. They compare various types of soft contact lenses of different make by the following criteria: optical characteristics, variety of mathematical parameters, gas permeability, and(More)
Results of experimental and clinical trials of a new solid intraocular lens made by an original technology from an acrylic polymer oligocarbonate methacrylate are analyzed. This IOL is monolithic, the diameter of the optic part is large, and the centering openings are made on special influxes beyond the optic zone of the lens. Results of experimental trials(More)
The results of 393 implantations of elastic polysiloxane IOLs with fixation in the iridociliary sulcus and capsular sac are analyzed. The author validates the undesirability of implanting elastic IOLs in the anterior chamber of the eye. Noteworthy is the low traumatism of implantation of elastic posterior-chamber IOLs, no reactions upon contact with the(More)
The blood flow velocity in the central retinal artery was evaluated by ultrasonic dopplerography in 577 patients (1154 eyes), 738 of these were normal eyes and 416 eyes with various ocular diseases. The patients' ages were 10-75 years. Hemodynamic parameters of normal bloodflow in the central retinal artery were determined: 9-15 cm/sec, diastolic velocity(More)
Clinical and immunological studies in 170 patients with senile cataracts carried out before and during the first 7 days after cataract extraction with implantation of intraocular lenses helped define the risk factors for development of an early exudative reaction: patients' age under 60 years, clinical signs of secondary immune deficiency presenting as(More)
The effects of fiber optics YAG laser continuous irradiation on the structures of the posterior segment of the eye in endovitreal exposure were under study. The values of the 1.06 microns wavelength radiation absorption by the membranes of the posterior segment of the eye were defined. On the basis of mathematical computations a relationship was revealed(More)
Acoustic examinations of the lens were carried out in patients with cataracts of different degree of maturing and mechanical solidity of the nucleus was measured after surgery. An original method of ultrasonic examination with Humphrey's A/B scanning system was used. Ultrasonic density was 10-15% increased in more mature forms of cataract, which was(More)