UV damage
Introduction
Introduction to UV injury Ultraviolet-induced eye injury (ultraviolet injuries of the eye) is electrical damage, which is derived from natural light, such as mountain and ice and snow areas and artificial light sources, more common welding arc, mercury vapor arc and tungsten orphan, ultraviolet biological effects, photoelectric biochemical reaction, the earliest For protein denaturation, followed by protein condensation. Photophthalmia, also known as ultraviolet eye inflammation, accounts for 2% of eye injuries. It is more common in metal welders or film workers under mercury lamps, as well as ultraviolet lamps, atomic bombs, etc., which may be caused by direct or indirect radiation. When the amount of exposure in one day accumulates to more than 15 minutes, symptoms can appear after 6 to 10 hours. The wounded work every night during the day and there is no accumulation after 24 hours. basic knowledge The proportion of illness: 0.005% Susceptible people: no special people Mode of infection: non-infectious Complications: conjunctival hyperemia
Cause
Cause of ultraviolet injury
Photophthalmia, also known as ultraviolet eye inflammation, accounts for 2% of eye injuries. It is more common in metal welders or film workers under mercury lamps, as well as ultraviolet lamps, atomic bombs, etc., which may be caused by direct or indirect radiation. When the amount of exposure in one day accumulates to more than 15 minutes, symptoms can appear after 6 to 10 hours. The wounded work every night during the day and there is no accumulation after 24 hours.
Prevention
UV injury prevention
Strengthen labor insurance publicity and education. In the workplace with ultraviolet light, wear protective glasses, wear slit goggles, light gray glasses or GR-39 optical resin lenses.
Complication
UV injury complications Conjunctival congestion
Serious can cause blindness.
Symptom
UV injury symptoms Common symptoms Tear tears, severe pain, red eye, yellow eye, conjunctival congestion
Initially for both eyes and foreign body sensation, gradually worsened, eyelids, severe pain, photophobia, tears, dark spots on the side, red or yellow vision symptoms.
Signs: severe facial and eyelid skin flushing, conjunctival hyperemia, corneal fluorescein staining can be seen diffuse point-like color difference, corneal sensation diminished, pupil diminishing narrowing, usually 2 to 3 days after the symptoms disappeared.
Examine
UV injury inspection
Do eye and skin check.
Diagnosis
UV injury diagnosis and identification
Need to be differentiated from eye burns.
