What harm does ultraviolet lamp do to human body-family notes

Everyone knows that ultraviolet rays can kill bacteria, but long-term ultraviolet radiation is very harmful to people's health. Ultraviolet rays can destroy human skin cells and do great harm to people. Signs that can lead to premature aging can produce diffuse erythema, itching or burning sensation, and may form blisters or edema. Common symptoms include headache, fatigue and general malaise. In severe cases, it may even cause cancer, skin tumors and so on. When using ultraviolet lamp for disinfection, direct contact between skin and eyes and ultraviolet radiation should be avoided.

Damage of ultraviolet rays to eyes

1, ultraviolet rays do great harm to skin and eyes, and the eye diseases that can be induced include pterygium, cataract and retinal degeneration. Senile cataract is closely related to long-term exposure to ultraviolet rays. Ultraviolet rays are absorbed by the lens after penetrating the cornea, which can cross-link and solidify the soluble protein of the lens, make the lens age or become opaque, and finally cause cataract.

2. The influence of ultraviolet rays on crystals is cumulative, especially in plateau areas where ultraviolet rays are strong. The incidence of cataract in Tibetan residents is much higher than that in plain residents. In the strong light environment, the eyes will automatically contract the pupils, reducing the amount of light incident. But wearing sunglasses without ultraviolet protection will greatly increase the amount of ultraviolet rays entering the eyes, so ultraviolet protection should be a basic function of sunglasses.

3. Ultraviolet rays have a serious burn effect on corneal epithelium, which will cause degeneration and necrosis of corneal epithelium, thus causing flaky corneal epithelium to fall off, and patients will have symptoms such as jealousy, photophobia and tears. Of course, this detachment of corneal epithelium has a delayed effect. About 4-6 hours after ultraviolet irradiation, symptoms of foreign body sensation in the eyes began to appear. Patients will go to the hospital for medical treatment. The doctor found that the corneal epithelium on both sides was somewhat detached. At the same time, I asked about the medical history and found that there was ultraviolet radiation during the day. The doctor will tell you not to rub your eyes hard, which will aggravate the damage of corneal epithelium. At the same time, you should use antibiotic eye drops, such as levofloxacin eye drops, to prevent infection. Without local infection, the exfoliated corneal epithelium can recover within 24 hours.

Harm of ultraviolet rays to human body

1, easy to cause skin aging and other problems, more likely to lead to skin cancer.

2. Skin aging caused by natural light can also lead to deep and thick wrinkles, rough skin, uneven skin color, spots, skin thickening and relaxation, excessive pigmentation in some parts or exaggerated hair vessels.

3, it can directly reach the dermis, destroy the collagen and elastic fiber tissue of the skin, and accelerate the skin aging.

In medicine, as long as mice are irradiated for 20 minutes, obvious adverse symptoms will appear. Ultraviolet radiation is harmful to internal tissues. If it is only peeling, it can be cured with some drugs, but the damage to internal tissues must be observed for a long time.

The above is a little knowledge about "how harmful ultraviolet lamp is to human body", hoping to help those in need. We should take precautions against ultraviolet rays.