نتایج جستجو برای: eye protection
تعداد نتایج: 334675 فیلتر نتایج به سال:
OBJECTIVE To determine if injury rates among female field hockey players differ before and after implementation of a national mandate for protective eyewear (MPE). METHODS We analyzed girls' field hockey exposure and injury data collected from national (High School Reporting Information Online [RIO]) and regional (Fairfax County Public Schools) high school sports injury databases in 2 seasons...
This study was conducted to determine how much progress U.S. dental schools have made in providing eye protection during restorative (adult operative and fixed prosthodontic) procedures since a 1979 survey. A seven-question survey was placed at a website, and fifty-five different U.S. dental schools were asked to complete the survey. Thirty-one schools responded (56 percent). Eighty-four percen...
This paper concerns the reflex effects on the heart of the application of traction to the extrinsic muscles of the eye. Relevant medical literature is reviewed, and a controlled investigation of the value of muscle relaxant drugs in the prevention of untoward vagal activity during eye surgery is described. Gallamine is shown to provide considerable protection by reason of its vagal-blocking act...
We reviewed the records of the patients hospitalised for eye injuries in Aosta Valley between January 1976 and June 1993. Eye injuries from traditional regional sports accounted for 27 cases (41.5% of all ocular sport injuries), of which 21 (77.8%) occurred during the game 'tsan', the most popular one. Injuries led to legal blindness in 3 (11.1%) cases and to a permanent visual loss in 2 (7.4%)...
Cross-eye jamming is an on-board ECM technique that may potentially be applicable to platform self-protection against missiles that employ fully active radars. This paper explores one aspect of amplitude-modulated cross-eye jamming in missile defense. In this analysis, the seeker in the missile is assumed to contain a monopulse tracking antenna and an exact monopulse processor. It will be seen ...
Method 1 Apply a piece of adhesive tape, about 15 centimetres long, to the eye pad (Figure 1). 2 Ask the patient to close both eyes. 3 Position the eye pad diagonally over the closed lids of the affected eye and tape firmly, but gently, to the forehead and cheek. 4 Apply a second and third piece of tape to ensure the pad lies flat. 5 Extra protection can be given by taping a shield over the pad...
Laser-induced eye injuries have been reported more and more often in the past years, yet the laser is not a modern invention. Based on stimulated emission, the wavelength, energy dose and pulse duration of the laser are the determining factors for its possible hazard potential. The eye, which is the most vulnerable body part for laser radiation, can be affected. As medical treatment is discusse...
One hundred necropsies were performed by four junior pathologists wearing safety spectacles. The number of blood splashes on the spectacle surfaces were counted after each necropsy. Splashes were found after 22 necropsies (range 10-34%), with higher numbers being seen among the more junior grades of pathologist. This suggests that the use of safety spectacles should be considered by all patholo...
PURPOSE To provide a perspective of observed associations between lifestyle exposures and eye diseases in adults. DESIGN Summary of recent epidemiologic studies. METHODS Nonsystematic review of the literature. RESULTS Data suggest that some lifestyle exposures (e.g., smoking) are significantly associated with risk of several different diseases, suggesting that altering behaviors may decre...
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