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UV lamps killing viruses are burning people’s eyes, doctors warn

 


Employees of the Chilean-Brazilian airline LATAM monitor the operation of an autonomous robot that uses Type-C ultraviolet light (UV-C) to clean the interior of an aircraft.

Employees of the Chilean-Brazilian airline LATAM monitor the operation of an autonomous robot that uses Type-C ultraviolet light (UV-C) to clean the interior of an aircraft.
Photo: Nelson Almeida / AFP (((Getty Images)

Ultraviolet lAmplifier for killing viruses and bacteria Seems to be causing miseryunate Eye damage For some people.In a new treatise this month, doctors report Several cases of people developing inflamed corneas due to UV exposure from “germicidal lamps” installed between covid-19 Pandemic.Some patients were unaware The lamp was It is installed.

UV lighting has received a lot of attention lately since UV light May reduce the stability of many unwanted things Bacteria. SSpecial lamps have been used in the past to control the outbreak of other potential aerial infections, Including tuberculosis.Many now business And hospital Uses UV light to disinfect the room apparatus.

The problem is that UV rays can also be harmful to humansAs anyone who has ever tanned knows. EExposure to UV light can damage both the skin and the cornea, The transparent and protective outer layer of our eyes.When this happens, it causes painful inflammation It is called photokeratitis.

In this new treatise Release In the journal Ocular Immunology and Inflammation, the author states: 7 cases Man I developed photokeratitis a few hours after being exposed to a UV lamp.All cases Seen by a doctor at the Bascom Palmer Eye Institute at the University of Miami Miller School of Medicine.

Slit lamp photographs of both eyes of a patient who developed an inflamed cornea after exposure to a UV lamp.

Slit lamp photographs of both eyes of a patient who developed an inflamed cornea after exposure to a UV lamp.
image: Sengillo, et al / Ocular Immunology and Inflammation

In addition to irritation and redness, some patients experienced mild symptoms such as the sensation of something clogged in the eyes. Others have experienced severe painful burns and hypersensitivity to light. In three cases, the lamp was installed at home and three patients were exposed at work. In all of these cases, the patient reported direct contact with lighting without eye protection. (sevenThe h incident involved someone exposed to UV light in a dental clinic).

Thankfully, people’s symptoms were short after treatment. Usually lubricated eye drops, antibiotics, And steroids-and most recovered completely within 2 or 2 three days.But these injuries It’s not the first of its kind to be seen during a pandemic. At the beginning of April, the author pointed out by a Hong Kong doctor report Three similar cases in one household.

It’s not clear Whether UV lighting really helped during this time Pandemic. Sufficient UV light should be able to kill the coronavirus remaining in the air or on the surface or objects. Like below Protective mask used by healthcare professionals. However, the exact type of ultraviolet light (UV-C), which is the most effective in killing viruses, is also very dangerous to people. Limits How useful is this disinfection The strategy can be in the real world.The World Health Organization is now explicitly warning people not to do so Disinfect yourself I use UV lamps for that very reason.

“Installing UV-C air disinfection in medical facilities requires well-trained technicians to avoid direct exposure of occupants,” the doctor wrote. “The author warns everyone to avoid direct exposure to UV-C germicidal lamps and strictly follow the manufacturer’s recommendations.”

This current study is not aimed at assessing the effectiveness of UV lamps for covid-19 prevention, but it reinforces why people should always be aware of their surroundings.

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