Dr. Lin Yuzhen reminded the public to pay attention to protection when using ultraviolet germicidal lamps to prevent epidemics. Avoid direct or indirect exposure to the eyes. They should be turned on when people and pets are not in the room.

(Photo by reporter Liu Wanjun)

[Reporter Liu Wanjun/Tainan Report] A 52-year-old man in Tainan City woke up from his sleep in the middle of the night due to severe pain in his eyes. His eyes were crying and he couldn’t open them. ", the naked vision of both eyes was 0.7, and the slit lamp examination showed that the conjunctiva of both eyes was red and swollen, and there were scattered punctate lesions on the cornea. It was only then that the man remembered that he had cleaned the room with the germicidal lamp on for about 1 hour during the day; the doctor appealed to use Pay attention to protection when using ultraviolet germicidal lamps, and only use them when people and pets are not in the room.

Illuminative keratoconjunctivitis, commonly known as welding eye, is named after it is commonly seen in people engaged in electric welding. It is a kind of corneal and conjunctival injury caused by ultraviolet light. In the era of rampant epidemics, the harm caused by germicidal lamps should not be underestimated.

Chief Physician Lin Yuzhen of Chi Mei Medical Center's Department of Ophthalmology said that the harm of ultraviolet rays on the cornea is mainly through photochemical reactions. On average, 6 to 12 hours after exposure to ultraviolet light, corneal epithelial cells fall off and symptoms begin to appear. Therefore, patients often develop symptoms in the middle of the night.

Typical symptoms are pain in both eyes, tearing, unable to open eyes, and even loss of vision. If the corneal lesion is infected, it will also cause corneal ulcers, and even blindness in severe cases, which must be treated properly.

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Lin Yuzhen pointed out that due to the epidemic, many people will use ultraviolet disinfection lamps to sterilize and sterilize. Although it seems convenient, it is potentially dangerous to the human body. When the ultraviolet light is exposed for too long or the energy is too high, it will damage the eyes (including cornea, lens, retina, etc.) and skin, may affect vision, and even cause irreversible damage.

Lin Yuzhen reminded that due to the outbreak of Wuhan pneumonia (new coronavirus disease, COVID-19), people's photokeratoconjunctivitis caused by disinfection lamps has an increasing trend, and reminded the public to take appropriate protection when operating related ultraviolet equipment Measures to avoid direct viewing or indirect exposure to the eyes to prevent eye damage caused by ultraviolet light.

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keywords

  • vision

  • cornea

  • Redness and swelling of the conjunctiva

  • Keratoconjunctiva

  • welding eye

  • Photokeratoconjunctivitis

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