Asunto(s)
Lesiones de la Cornea , Rayos Láser/efectos adversos , Animales , Femenino , Masculino , ConejosAsunto(s)
Rayos Láser , Radiometría/instrumentación , Animales , Computadores , Córnea , Rayos Infrarrojos , Monitoreo de Radiación , Radiometría/métodos , Piel , TemperaturaRESUMEN
Corneal temperatures of the rhesus monkeys have been measured under conditions that may exist during laser experiments. The minimum and maximum temperatures found for all experimental conditions were 29.54 degrees C and 39.16 degrees C, respectively, a range of 9.62 degrees C. A computer model of thermal damage due to laser irradiation was used to determine the effect varying initial temperature could have on corneal damage thresholds (ED50's). The range of 9.62 degrees C found in monkeys for all experimental conditions corresponded to a 39% difference in threshold power. The dependence of damage thresholds on initial temperature could be an important factor to consider when basing laser safety standards on damage threshold data.
Asunto(s)
Córnea/fisiología , Quemaduras Oculares/fisiopatología , Rayos Láser/efectos adversos , Temperatura , Animales , Temperatura Corporal , Computadores , Lesiones de la Cornea , Femenino , Haplorrinos , Humanos , Macaca mulatta , Masculino , Concentración Máxima Admisible , Modelos Biológicos , ConejosRESUMEN
Air Force laser safety standards are developed from laser-exposure data obtained in studies using experimental animals and from biomathematical modeling procedures. Interpretation of research data and predictive modeling calculations are enhanced by knowledge of the temperature values of the tissue absorption sites. Corneal temperature values for the normal, the anesthetized, and the laser-injured Dutch belted rabbit are presented and compared with values obtained in other studies. The corneal temperatures were measured by infrared radiometry.
Asunto(s)
Córnea/fisiología , Lesiones de la Cornea , Rayos Láser/efectos adversos , Temperatura , Anestesia Intravenosa , Animales , Dióxido de Carbono , Lateralidad Funcional , Conejos , Seguridad , Termografía/instrumentación , Tiopental , Factores de TiempoRESUMEN
An investigation into the effects of keratitis on corneal light transmission is presented. Transmission data from 9 diseased corneas are compared to those of 22 normal corneas in the 0.3-0.8 micron spectral range. Rhesus monkey corneas were used in the study. Several color photographs illustrate varieties of idiopathic keratitis in rhesus monkeys.
Asunto(s)
Córnea/fisiopatología , Queratitis/fisiopatología , Luz , Absorción , Animales , Animales de Laboratorio , Opacidad de la Córnea/veterinaria , Haplorrinos , Técnicas In Vitro , Queratitis/veterinaria , Terapia por Láser , Rayos Láser/veterinaria , Macaca mulatta , Retina/cirugíaRESUMEN
The authors describe military optometry clinic personnel problems prior to 1971 which led to the creation of the Air Force Optometry Specialist/Technician career field. The optometry Specialist, whose civilian counterpart is the optometric assistant/technician, receives a highly intensive 9 week resident course at the USAF School of Health Care Sciences. Additional mandatory training is received on the job and by a career development course specifically designed for the Optometry Specialist. An optional 2-year program is also offered through the Community College of the Air Force.