It is understood that occupational ocular trauma accounts for about 5% of the entire industrial injury, and accounts for 50% of the trauma in eye hospitals. And some industrial sectors as high as 34%. In the production process, common industrial eye injury factors include foreign body eye injury, chemical eye injury, non-ionizing radiation eye injury, ionizing radiation eye injury, microwave and laser eye injury. Because of the existence of these injuries, protective glasses must be worn during the production process, and protective glasses are especially important!
1. Foreign body eye injury
Foreign body eye injuries are those engaged in grinding metals; cutting non-metals or cast iron; flushing and repairing metal castings with hand tools, portable electric tools, and air tools; cutting rivets or screws; cutting or scraping boilers; crushing stone or concrete, etc. , foreign objects such as sand particles and metal chips enter the eyes or impact the face.
2. Non-ionizing radiation eye damage
In electrical welding, oxygen cutting, furnace, glass processing, hot rolling and casting and other places, the heat source can generate strong light, ultraviolet and infrared rays at 1050 ~ 2150 ℃. UV radiation can cause conjunctivitis, photophobia, pain, tearing, blepharitis and other symptoms. Because it mostly occurs in electric welders, it is often called "electrooptic ophthalmia", which is a common occupational eye disease in the industry.
3. Ionizing Radiation Eye Damage
Ionizing radiation mainly occurs in the atomic energy industry, nuclear power plants (such as nuclear power plants, nuclear submarines), nuclear, high-energy physics experiments, medical department diagnosis, isotope diagnosis and treatment and other places. Eye exposure to ionizing radiation can have serious consequences. When the total dose absorbed exceeds 2 Gy, individuals begin to develop cataracts, and the incidence increases with the increase of the total dose.
4. Microwave and laser eye injuries
Microwaves can cause clouding of crystals due to thermal effects, leading to the occurrence of "cataracts". Laser projection onto the retina can cause burns, and lasers greater than 0.1 μW may also cause eye hemorrhage, protein coagulation, melting, and blindness.
5. Chemical eye (face) damage
The acid-base liquid and corrosive fumes in the production process enter the eyes or impact the facial skin, which can cause burns to the cornea or facial skin. Splashes, nitrites, and strong alkalis can cause severe eye burns, as alkalis penetrate more easily than acids.
What should I pay attention to when using protective glasses?
1. The selected protective glasses must be inspected and qualified by the product inspection agency;
2. The width and size of the protective glasses should be suitable for the user's face;
3. Rough wear of the lens and damage to the frame will affect the vision of the operator and should be replaced in time;
4. Protective glasses should be used by special personnel to prevent the infection of eye diseases;
5. The filters and protective sheets of the welding safety glasses should be selected and replaced according to the specified operation needs;
6. Prevent heavy falls and heavy pressure, and prevent hard objects from rubbing against lenses and masks.
Post time: Oct-20-2022