ABSTRACT
Long-term studies in hygienic, prevention and treatment aspects of laser radiation are summarized. Findings in the given field resulted in over 20 patents and in more than 200 articles, which evidences research novelty.
Subject(s)
Eye Injuries , Lasers/adverse effects , Occupational Diseases , Vision Disorders , Eye Injuries/etiology , Eye Injuries/prevention & control , Humans , Occupational Diseases/etiology , Occupational Diseases/prevention & control , Occupational Exposure/adverse effects , Occupational Health/trends , Russia , Vision Disorders/etiology , Vision Disorders/prevention & controlABSTRACT
Health assessment of laser radiation emitted by laser-beam projectors used for laser shows in concert and theatrical events was carried out. The effects of various laser radiation wavelengths and regimes on functional state of eye retina were studied.
Subject(s)
Environmental Exposure , Eye Injuries , Lasers , Retina , Environmental Exposure/adverse effects , Environmental Exposure/analysis , Environmental Exposure/standards , Environmental Health/methods , Environmental Health/organization & administration , Eye Injuries/etiology , Eye Injuries/prevention & control , Humans , Lasers/adverse effects , Lasers/classification , Lasers/standards , Leisure Activities , Retina/injuries , Retina/radiation effects , RussiaABSTRACT
Hygienic evaluation covered 11 laser projectors used for theater and entertainment events and providing laser demonstrations. Laser irradiation diffusely reflected from the screen and scattered beyond the limits of zone with laser danger was proved safe.
Subject(s)
Lasers , Occupational Health , HumansABSTRACT
Studies covered 168 personal computer users, 98 jewelry female polishers, 64 assemblers of metallic ship frameworks. Various doses of laser rays in accordance with work conditions appeared effective for improving upper limbs microcirculation. The suggested method is based on effects of low-intensity laser irradiation.
Subject(s)
Arm/blood supply , Low-Level Light Therapy , Occupational Diseases/prevention & control , Occupations , Adult , Data Collection , Female , Humans , Industrial Oils , Jewelry , Male , Microcirculation , Microcomputers/statistics & numerical data , Middle Aged , Plethysmography, Impedance , Ships , Time FactorsABSTRACT
Study covered 120 personal computer users, 98 jewelry female polishers, 64 metallic ships body assemblers. Objective investigations revealed joints pain on palpation, joints function disorders, hypoesthesia of finger tips. After prevention measures based on low-intensity laser rays, the joints functions recovered, hands edema disappeared, hypoesthesia cleared.
Subject(s)
Hand-Arm Vibration Syndrome/prevention & control , Low-Level Light Therapy/methods , Occupational Exposure/adverse effects , Vibration/adverse effects , Adult , Female , Follow-Up Studies , Hand-Arm Vibration Syndrome/epidemiology , Humans , Male , Middle Aged , Prevalence , Russia/epidemiology , Young AdultABSTRACT
Study covered 84 personal computer users, 48 jewelry female polishers, 92 metallic ships body assemblers. Objective investigations revealed lower limbs joints stiffness. After prevention measures based on low-intensity laser rays, the joints functions recovered.
Subject(s)
Ankle Joint , Hip Joint , Joint Diseases/prevention & control , Knee Joint , Low-Level Light Therapy/methods , Occupational Diseases/prevention & control , Occupational Exposure/adverse effects , Adult , Female , Humans , Incidence , Joint Diseases/epidemiology , Joint Diseases/etiology , Male , Middle Aged , Occupational Diseases/epidemiology , Occupational Diseases/etiology , Russia/epidemiology , Young AdultSubject(s)
Hand , Low-Level Light Therapy/methods , Occupational Diseases/prevention & control , Occupational Exposure/adverse effects , Osteochondritis/prevention & control , Vibration/adverse effects , Adult , Female , Hand/blood supply , Hand/radiation effects , Humans , Male , Middle Aged , Occupational Diseases/etiology , Occupational Diseases/physiopathology , Osteochondritis/etiology , Osteochondritis/physiopathology , Regional Blood Flow/physiology , Regional Blood Flow/radiation effectsABSTRACT
Work conditions at IR-lasers production are associated with exposure to a complex of hazards including laser irradiation, psychoemotional strain, visual strain.
Subject(s)
Environmental Monitoring/methods , Industry , Infrared Rays/adverse effects , Lasers , Occupational Diseases/etiology , Occupational Exposure/adverse effects , Workplace/standards , HumansABSTRACT
The author necessitates participation of occupational hygienists early in design of industrial laser equipment, laser devices, in order to create safe technologic equipment.
Subject(s)
Lasers , Occupational Health , HumansABSTRACT
The authors necessitate improvement of "Sanitary regulations and rules for lasers design and use" register No. 5804-91. Laser energy could be used as a prophylactic measure in occupational pathology.
Subject(s)
Laser Therapy , Occupational Diseases/prevention & control , Vision Disorders/prevention & control , Adult , Female , Humans , Treatment OutcomeABSTRACT
Work associated with visual strain results in visual fatigue. Laser radiation in red part of spectrum relieves visual fatigue, activating reduction-oxidation thiol disulfide system in eyes.
Subject(s)
Asthenopia/therapy , Laser Therapy , Occupational Diseases/therapy , Adult , Humans , Middle Aged , Retina/physiologyABSTRACT
Some mechanisms of general and local effects of laser radiation with various wavelength were considered. Both stimulating and stress effects of low-intensive laser radiation realized via antioxidant and free-radical pathways were shown. It was found that the level of SH and SS-groups in tissues and blood is the most sensitive index of laser effect. Measurements of SH and SS-groups concentration are recommended as criterion of harmless laser use in clinics.
Subject(s)
Antioxidants , Disulfides/metabolism , Lasers , Sulfhydryl Compounds/metabolism , Animals , Disulfides/blood , Free Radicals , Health Personnel , Humans , Lasers/adverse effects , Radiation Dosage , Rats , Sulfhydryl Compounds/bloodABSTRACT
In the dynamics of a chronic experiment and after it, the state of the cornea and blood circulation in the uveal tract were investigated, along with the morphological studies of the occipital areas of the brain (area 17) and calculations of the thermal processes in the cornea tissues. Results of the complex studies confirmed that opacification of the cornea was not induced by the damaging heat effect of the CO2-laser irradiation with the energy of illumination at 4.2 x 10(-2) Wt.cm-2 in 120 day-long period.
Subject(s)
Cornea/radiation effects , Corneal Opacity/pathology , Disease Models, Animal , Eye Burns/pathology , Hot Temperature/adverse effects , Lasers/adverse effects , Radiation Injuries, Experimental/pathology , Animals , Body Temperature/physiology , Carbon Dioxide , Cornea/physiopathology , Cornea/ultrastructure , Corneal Injuries , Corneal Opacity/etiology , Corneal Opacity/physiopathology , Endothelium, Corneal/injuries , Endothelium, Corneal/physiopathology , Endothelium, Corneal/radiation effects , Endothelium, Corneal/ultrastructure , Eye Burns/complications , Eye Burns/etiology , Eye Burns/physiopathology , Male , Microscopy, Electron , Rabbits , Radiation Injuries, Experimental/complications , Radiation Injuries, Experimental/etiology , Radiation Injuries, Experimental/physiopathologyABSTRACT
In a four-month experiment with 102 male rabbits and 42 HRS/U mice and 30 days after termination thereof, study was made of local and general response of an organism to the effect of laser radiation (10.6 microns wave length and energy exposition 1/7 of the threshold). The radiation tolerance level was estimated.
Subject(s)
Lasers , Animals , Male , Maximum Allowable Concentration , Mice , Mice, Hairless , RabbitsABSTRACT
In experiments with male rabbits the biomicroscopic method was used to study cornea affected by diffuse-reflected radiation with 10.6 microns wave length of different energy exposure. A permissible radiation limit was determined.
