Can Contacts Be Stored in Water?
And water does not disinfect your contact lenses. If you store your contacts in water, in a matter of minutes or hours, bacteria, fungi and other harmful pathogens can grow on your lenses and then get transferred to your eyes.
In fact, this is why eye care professionals recommend that you take your contact lenses out of your eyes when you go swimming, whether in a pool, a lake or the ocean. The many microorganisms that live in the water can easily stay on your lenses and cause you problems later.
At the very least, you should wear swim goggles to protect your lenses and eyes; or, if you wear daily disposable contacts, you could discard the pair you just swam in and replace them with a new pair. (Read more about the best strategies for swimming with contact lenses.)
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Storing Contacts in Water Is Dangerous and Uncomfortable
This is serious business. Contact lens-related eye infections caused by failure to properly clean and disinfect your lenses with an approved contact lens solution can cause permanent eye damage and vision loss, even blindness.
Also, water including bottled water and distilled water is not salty like your tears, and it is not buffered to match the acidity of your tears.
Because of these differences, water can cause your contact lenses to change shape and stick to your eyes when you apply them, often causing significant discomfort and blurred vision.
For more details, read "Can You Use Water as Contact Solution?"
[Page updated May 2015]