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December 20, 2018

Even a quick power nap with your contacts in can raise risk of serious eye infection, new study finds

You don't want a nasty eye infection, now do you?

Prevention Infection
eyes pexels Jan Krnc/Pexels

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There is tons of advice given by medical professionals that people don't want to listen to from "you should really floss every day" to "don't sleep with your contacts in." As it turns out, the latter statement has some serious merit. 

A new study published in the journal Annals of Emergency Medicine found that sleeping in your contact lenses can lead to serious infection. This is a very important message since contact lenses are worn by an estimated 45 million Americans. 

Regardless, the Centers for Disease Control and Prevention report that one in three users sleep with their lenses on, despite the fact that it can increase the risk of infection six to eight times. 

The report states that improper care or wear, like going to sleep without removing your lenses, can lead to infections of the cornea like microbial keratitis, which can lead to serious health problems. "Falling asleep, or even napping, without removing your contact lenses can significantly increase the likelihood of serious health problems," said Dr. Jon Femling, an assistant professor at the Department of Emergency Medicine at the University of New Mexico School of Medicine and lead author.


RELATED READ: Yes, it is possible to get an infection from sniffing smelly socks — but it's unlikely


To determine the impacts of sleeping with contacts in, researchers examined six cases of corneal infections associated with sleeping in contact lenses provided by CDC's Morbidity and Mortality Weekly Report.

The study noted that at least one million doctor visits related to eye infections turned out to be bacterial or fungal microbial keratitis as a result of sleeping with contact lenses. Although some contact lenses are developed for continuous wear, even while sleeping, if your eyes are sensitive it might be best to switch to contact lenses you remove and clean daily, Bustle reports.

Just to give you an idea of the cases that are likely to deter you from sleeping (or napping, for that matter) in contact lenses, here are three prime examples, per the report:

"In one case, a man evaluated for eye redness and blurry vision reported sleeping in contact lenses 3-4 nights per week and swimming with them. He was treated for bacterial and fungal microbial keratitis.

Another instance outlines an adolescent girl who slept in lenses purchased without a prescription at a chain drug store. She developed a corneal ulcer that resulted in scarring.

A man who wore the same lenses for two weeks was diagnosed with a perforated cornea, bacterial infection and ultimately required a transplant to save his right eye."

"Sleeping in lenses is one of the riskiest and most commonly reported behaviors for adolescent and adult contact lens wearers," Dr. Femling said in the press release. "If you want to avoid infection, and avoid a trip to the emergency department, proper eye care is a must."

So, just to reiterate, the "don't sleep with your contacts in" medical advice is highly warranted and should be followed to a T. Still not sold? Just give "keratitis" a Google and force yourself to look at the pictures of highly-infected eyeballs. 

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