Protective goggles: So nothing gets in your eye!
The protection of the eyes is very important for many activities, in workshops, but also in laboratories. Depending on the design, safety goggles can protect against particles, corrosive or other substances dangerous to the eyes and against radiation. Overall, harmful effects on the eyes can occur due to mechanical, electrical, optical, thermal or chemical stimuli.
The right safety goggles must be selected depending on the hazard. The requirements for safety goggles are regulated in DIN EN 166.
The markings A,B,F and S stand for tested safety washers against general mechanical impacts.
Excessive UV radiation is harmful to the eyes
Frequency ranges of UV radiation are between 315 and 380 nanometres for UVA radiation, between 280 and 315 nanometres for UVB radiation and between 100 and 280 nanometres for UVC radiation.
The shortest wavelength radiation is therefore the UVC radiation. It is most dangerous for humans, but in nature it is almost completely filtered out by the ozone layer. This is - among others - one reason why the ozone layer is so important. Damage to the ozone layer therefore causes increased UV radiation.
Unlike UVC radiation, UVA and UVB rays are not absorbed by the ozone layer. However, both types of radiation are excessively harmful, both to the human skin and to the human eye. UVB radiation, for example, which causes sunburn, destroys the skin cells when exposed to excessive and prolonged radiation, and can also lead to the destruction of individual DNA strands. At the eye, extreme or prolonged UV radiation, such as when welding without protective goggles or a welding helmet, damages the tear layer of the eye, which is responsible for the refraction of light at the eye. The radiation also damages the cells of the upper corneal layer..
This damage is often only temporary, but in the long run UV radiation favors irreversible corneal degeneration. It can also cause cataracts or promote their development. Conjunctivitis can also develop. This is why it is so important to wear appropriate protective glasses with UV filters when working in areas where UV radiation has a long or intensive effect on the eye..
Glasses with a UV400 filter block UV radiation in the frequency range from 280 to 400 nanometers wavelength, this includes all UVA and UVB radiation.
Goggles with UV380 filter filter ultraviolet radiation in the range of 280 to 380 nanometers, which also covers the UVA and UVB frequency range.
But since some experts now assume that UV light with wavelengths between 380 and 400 nanometers can also be dangerous, UV400 filters are often recommended in sunglasses and protective goggles.
We offer different versions of safety glasses in the field of mechanical eye protection as well as with UV filter.