Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Eye Protective Devices”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 recordsLinked to original sources
PubMed1990

[Assessment of individual eye protection devices based on their effect on the frequency-contrast characteristics of the visual analyzer].

Assessment of means for individual eye protection by the method of visocontrastometry, allows, already at the stage of projecting, to determine the correctness of selecting vision glasses by conditions of visual work. Investigations of 3 kinds of goggles: for reindeer breeders of Far North (2 variants), for mechanics and for protection from pesticides have shown that by their influence on frequency-contrast characteristic all they comply with physiologic hygienic demands. The value of the used method of control of the quality of individual eye protection means is established.

Agricultural Workers' Diseases↗
PubMed1991

Prevention of sports-related eye injury.

Sports-related eye injury is an important cause of vision loss. Many eye injuries can be prevented through the supervision of play, the enforcement of game rules and the use of eye protective devices. State-of-the-art eye protective devices incorporate highly impact-resistant optical material, usually polycarbonate lenses, in a sturdy frame. Protective devices are available for use in racquet sports, baseball, basketball, football, ice hockey and other sports.

Adolescent↗
PubMed1991

Evidence that increased scleral growth underlies visual deprivation myopia in chicks.

The authors evaluated three measures of scleral growth in chicks that were visually deprived with the use of translucent occluders. The authors sought to determine whether the ocular elongation and myopia that results from this deprivation is associated with increased growth of the sclera. The authors found that the dry weight of the sclera of deprived eyes increased 65% faster than that of nondeprived eyes. Furthermore, the uptake of labeled methionine and thymidine was significantly increased by visual deprivation, whether expressed as incorporation per sclera, per milligram of sclera, per milligram of protein, or per milligram of DNA. In addition, the amount of DNA and soluble protein was significantly greater in the scleras of deprived eyes than in those of nondeprived eyes. Finally, the degree of hydration of the scleras from deprived eyes was greater relative to their weight than that of the scleras from nondeprived eyes. These results suggest that visual deprivation causes increased cellular proliferation and increased protein synthesis in the sclera of chicks.

Animals↗
PubMed1977

Basic medical implications of scuba diving.

The rapid growth of scuba diving as a sport and the vast expansion of underwater exploration for energy has made it necessary for all physicians to become familiar with diving emergencies. The basic principles of scuba diving and related clinical implications are outlined to provide a more meaningful understanding of problems which may affect a diver.

Air Pressure↗
PubMed1991

[Illumination in the dental office and eye protection].

Visual problems may be due to an inadequate illumination. In this article some recommendations are presented with regard to the illumination in the dental office. Prior to this, a description of some technical terms such as lux and candela is presented. Some light sources may be dangerous for the eye if used for a longer period of time. Mechanical damage to the eyes and infection by hard and large particles of the aerosol may be serious. Spectacles and air suction devices are therefore a necessity. Lastly, some attention is given to working with monitors of personal computers.

Aerosols↗
PubMed1978

Solar retinopathy: visual prognosis in 20 cases.

A report of 20 cases of solar retinopathy associated with watching an eclipse of the sun is presented. Visual prognosis was generally good and most patients had good vision at the end of six months. Paramacular scotomata, image distortion and macular changes were, however, still present in the majority of patients. Transmission of energy through various protective devices was measured with a fluxmeter. The finding of retinal damage after exposure of even short duration through protective devices that reduce the incident irradiance of the sun up to 5,000 times indicates that the damage observed may be other than thermal in nature. It is concluded that no safe method for directly viewing a solar eclipse is generally available, and that the public, especially schoolchildren and their children, should be better acquainted with this hazard.

Adolescent↗
PubMed1991

Ocular injuries caused by elastic cords.

Five patients with ocular trauma due to elastic cords with attached metal or plastic hooks were evaluated over a 13-month period. Injuries included hyphema, angle recession, lens subluxation, choroidal rupture, vitreous hemorrhage, retinal detachment, and scleral rupture. Two patients suffered penetrating ocular injuries, and three patients had final visual acuities of 20/200 or less. This series emphasizes the potential severity of ocular injury due to these commonly used devices and reiterates a modification in design that might decrease the likelihood of accidental trauma from elastic cords.

Adult↗
PubMed1977

Protection against photic damage in retinitis pigmentosa.

Experiments on photic damage to the retinas of rats with hereditary retinal dystrophy and some tentative clinical evidence on human patients suggest that, in human retinitis pigmentosa, one could try to protect the retina and especially the rods from bright light in an attempt to delay the retinal degeneration and to prolong the period of useful vision. Several theoretical criteria have been proposed for protection of RP patients from possible photic retinal damage. Observing these criteria, Adrian developed a brownish ophthalmic filter which absorbs the short wavelengths preferentially, thus protecting the rods primarily. Whether or not use of these filters will be efficacious has yet to be determined and will require careful experimentation and the accumulation of clinical experience. Several brown ophthalmic filters also have been tested against the criteria for a protective device. The NoIR Amber 7% plastic glasses satisfy these criteria quite well and thus can be considered as a substitute for the Adrian lens. The characteristics of the two types of filters are compared. Experience with different methods of protection may show whether it is better to attempt to delay degeneration of both retinas simultaneously by decreasing their illuminations with filters or to exclude light completely from one eye in an attempt to preserve it while the other eye degenerates in the usual course of the disease. In any event, given the present state of knowledge, it seems to be appropriate, especially in the early stages of the disease, to suggest that RP patients protect their retinas from excessive light.

Animals↗
PubMed1990

Factors affecting therapeutic concentration of topical aminocaproic acid in traumatic hyphema.

Epsilon-aminocaproic acid (EACA) decreases rebleeding in traumatic hyphema through antifibrinolytic activity. Therapeutic levels were achieved in aqueous humor of rabbits after topical application. Aqueous humor EACA levels were significantly higher after pretreatment with 0.5% proparacaine. Use of EACA (60%) in a carboxypolymethylene (CPM) vehicle (0.5%, 1%, 2%, 3%, and 4%) was examined. Aqueous humors levels at 4 hours ranged from 6.18-20.42 micrograms/ml. The 2% and 3% formulas achieved the highest concentrations in aqueous. Use of EACA (15%, 30%, 40%, and 60%) in 4% CPM was also studied. At 2 and 4 hours after treatment, the 30% EACA solution most effectively achieved therapeutic levels. Velcro closure devices were attached to the rabbit's eyelids, and 200 microliters of 30% EACA in 2% CPM was administered. After 3 hours the patched eyes had a mean aqueous EACA level of 60.09 micrograms/ml compared with 8.97 micrograms/ml in unpatched eyes. When dose size was studied in patched eyes, 200-microliters doses achieved aqueous levels of 60.09 micrograms/ml, and 100-microliters doses resulted in levels of 10.40 micrograms/ml. Since epithelial toxicity was observed in eyes that had been patched, the optimum topical regimen appeared to be 200 microliters of 30% EACA in 2% CPM every 6 hours in unpatched eyes.

Acrylic Resins↗
PubMed1990

Image evaluation of ophthalmic devices.

Methods used in the ophthalmic industry to evaluate the optical image quality of correcting lenses have remained the same over many years. This is especially true for single-vision ophthalmic lenses. With the development of new optical designs and materials for correcting refractive errors and presbyopia, new procedures for evaluating lens performance are being explored. One such method is the measurement of the modulation transfer function. Over the last 2 years, we have been measuring modulation transfer functions on a variety of single-vision and bifocal contact lenses, progressive addition spectacle lenses, holographic-diffractive lenses, and intraocular lenses. In this article, the modulation transfer function procedure and its application and results from one study on safety goggles will be presented and discussed.

Eye Protective Devices↗
PubMed1991

Intraocular pressure and eye enlargement in chicks.

In chicks, the application of optical devices that blur vision results in eye enlargement and ametropia. The research presented here investigated changes in intraocular pressure (IOP), specifically intravitreal pressure, that occur with eye enlargement induced by this means. Plastic goggles (domes) were glued over one eye in 25 domestic chicks. Plastic rings were glued around one eye in 25 control chicks to control for the mechanical effects of the treatment but which left their vision undisturbed. Following two weeks of treatment, domes and rings were removed and IOP was measured. Mean IOP of the domed eyes was 1.14 mm Hg lower than that of control eyes, a difference that was not statistically significant. The eyes of an additional group of 20 chicks that experienced similar treatments were refracted; these refractions revealed that the dome-treated eyes had a mean refractive state that was 7.98 D myopic relative to the ring controls, which was statistically significant. The results indicate that IOP does not change significantly in chicks with experimental eye enlargement induced by retinal-image degradation.

Animals↗
PubMed1977

Swimmer's goggles for keratoconjunctivitis sicca.

Swim goggles with a moist chamber effect have been used successfully in seven patients with severe keratoconjunctivitis sicca unresponsive to the conventional means of therapy including artificial tears, mucolytics, and occlusion of the puncta. The longest follow-up is three years, the shortest six months. There have been no complications, and in all cases the patients have been subjectively and objectively improved.

Aged↗
PubMed1992

Penetration eye injuries in the workplace. The National Eye Trauma System Registry.

Occupational eye injuries are common and preventable. Between 1985 and 1991, there were 635 work-related penetrating eye injuries among the 2939 cases (22%) reported to the National Eye Trauma System Registry by 48 collaborating centers in 28 states and Washington, DC. The median age of the injured workers was 30 years; 75% were younger than 40 years; and 97% were male. The commonest causes of injuries were projectiles (457 cases), sharp objects (166 cases), blunt objects (60 cases), and blasts (22 cases); these terms are not mutually exclusive. Specific objects causing injuries included nails, wire, screwdrivers, and other hand tools. There was evidence of alcohol use by at least 2% of the injured workers. When they were injured, 6% of the workers were wearing safety glasses; 3% were wearing nonsafety eyewear. Posterior segment trauma, which occurred in 63% of the cases, included vitreous hemorrhage (42%), intraocular foreign bodies (35%), and retinal detachment (10%). Hyphema occurred in 35% and traumatic cataract in 32% of the cases. Initial visual acuity after injury was hand motion or worse in 43% of the cases. National Eye Trauma System Registry data are useful to identify strategies to prevent occupational eye injuries such as wider use of safety glasses and improvement in engineering controls.

Accidents, Occupational↗