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At the end of a long day, remembering to wash your face and brush your teeth can feel like a tall order. And when it comes to taking out contacts, you can basically forget about it. But just like skipping your tooth brushing routine can pose a threat to your oral health, wearing contacts while you sleep can wreak havoc on the health of your eyes.
Doctors, scientists and optometrists alike are in agreement on this one: you shouldn’t be sleeping in contacts. And even though everyone ~knows~ you shouldn’t sleep with contact lenses in, sometimes it just happens (like “accidentally” eating two jars of nutella or “accidentally” watching 4 hours of Netflix before bed).
Well, after hearing news reports of people going blind as a result of catching contact-lens-adorned zzzz’s, we thought it would be a good idea to look into the science behind the possible risks. Keep reading for some helpful information about this dangerous habit.
When your eyes are open, they receive oxygen from the air, which (like most bodily functions) is needed to properly function. That means when you put in contacts, your eyes get a bit less oxygen. And when you close your eyes, the supply gets even lower. This makes your eyes ripe for irritation, inflammation and redness- which can lead to impaired vision.
This decreased oxygen supply can also increase your risk of getting bacterial or fungal infections, as well as corneal ulcers. More on that in a minute.
The short answer is: yes.
Sleeping with your contacts in is a terrible idea.
If you need a little motivation to get off the couch and take out your contacts, here are some scary issues that can arise if you fall asleep in your contacts:
The most common eye problem you might experience, if you’re sleeping in your contacts, is conjunctivitis (AKA pink eye). This common eye infection can be also caused by allergies or coming in contact with someone else who has it, but it’s mainly caused by wearing contacts overnight.
Why? Well, sleeping in your contacts can make your eyes more susceptible to microscopic tears on the cornea, and can increase your odds of bacteria (as well as fungi) entering and getting trapped in your eye for an extended period.
If you want to avoid a bad case of pink eye, take out your contacts before you hit the hay.
People who sleep in contact lenses are at an increased risk of corneal ulcers. According to this study, corneal ulcers are one of the largest causes of blindness in the world. Basically, a corneal ulcer is a tiny, open wound in your eye. Like we covered above, contact lenses already block oxygen to your eye. So when your eyelids are closed during the night, your cornea is literally starved of oxygen. This creates the perfect environment for bacteria to take over, causing a breakdown in the epithelium, forming an ulcer.
Delays in treatment can cause lifelong vision damage, so it’s safe to say this condition should be treated as soon as it happens.
If you sleep in your contacts, you might experience an eye condition called CLARE (or contact lens acute red eye). Also referred to as Tight Lens Syndrome or Contact Lens Over wear Syndrome, this is usually accompanied by light sensitivity, redness, tearing, and decreased vision.
Even though you probably hate wearing glasses (join the club), you might want to switch to your frames at night so you don’t forget to take out your contacts before falling asleep.
Wearing your contacts overnight, or for prolonged periods, can cause serious irritation- causing bumps to form underneath your eyelids. Giant papillary conjunctivitis (GPC) causes the inside of your eyelid to become red, swollen, and irritated. Patients who wear contact lenses while they’re sleeping have the greatest chance of experiencing this unpleasant condition.
The bumps that form as a result of GPC make them fit poorly, and can be difficult to resolve. If this happens to you, stop wearing your contacts for a week and see if your symptoms have subsided.
To reduce the risk of developing any negative symptoms or an eye infection, here are some good rules to follow if you’re part of the Contact Club:
Unfortunately, contacts can cause quite a headache- so make sure you follow the guidelines above if you’re a lens wearer.
If you’re experiencing redness, pain, light sensitivity, decreased vision, or swelling while wearing your contacts, carefully take them out and contact your eye doctor. They’ll help pinpoint the exact issue and help you determine what caused the issue in the first place.
If you didn’t know before, hopefully you know now: sleeping with your contacts in is a very bad idea. Don’t you want to wake up with crystal clear vision, instead of frantically searching for your glasses in the morning?
We would be sorely dropping the ball if we didn’t mention that you can experience 20/20 vision without contacts or glasses with a simple, 15-minute LASIK procedure. You can kiss your contacts goodbye for good at LasikPlus.
Want to simplify your nighttime routine? Here are a few articles to help get you started:
What Are the Risks of Laser Eye Surgery?
Six Surprising Facts About Laser Eye Surgery
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