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Biomedical subjects

L A Linnik

Publications and source records attributed to L A Linnik.

At least 19 recordsLinked to original sources
PubMed1990

[The function of the posterior corneal epithelium after exposure to ultraviolet laser radiation].

The method of contact mirror microscopy was used for assessment of the state of posterior epithelium of rabbit corneas before and after the action of laser ultraviolet radiation, lambda = 0.337 mmc. It was found that the usage of energy density of 5-20 mwt/cm2 and time exposures [correction of expositions] of 1, 5, 10, 15 min. in the terms of follow-up from 1 hour to 3 months is harmless for cells of posterior epithelium of the cornea in experiment. The method of mirror microscopy widens criteria of in vivo objective assessment of coherent radiation action on the cornea, that is important for deciding the questions about security and optimization of energetic parameters of laser therapeutic actions.

Animals↗
PubMed1989

[The mechanism of action of low-energy monochromatic coherent light on the lysosomal function of the retina].

A study of the state of retinal lysosomes under the action of low-energy monochromatic coherent light has shown that helium-neon laser radiation (lambda = 632.8 nm) to possesses a lysosomotropic action, changing structural functional parameters of lysosomal membranes, and the directness and intensity of the membranotropic effect on lysosomal structures of the retina depend on energy characteristics of the radiation used.

Acid Phosphatase↗
PubMed1989

[Laser transscleral contact-compression coagulation of the fundus oculi tissues].

Experimental investigations were carried out in monkeys and rabbits for the purpose of quantitative and qualitative assessments of contact transscleral methods of action on intraocular, structures using ruby and AIH with Nd lasers adapted with a quartz monofiber. It was found that compression of a monofiber into the sclera produces its clarification, this providing effective transmission of radiation without any loss. Essential distinctions of the character of interaction between laser radiation and eye coats in transmission of radiation by a monofiber with its compression into the sclera allowed to substantiate and recommend for a clinical usage the contact-compression transscleral method of laser microsurgery.

Animals↗