Don't Ever Put Contact Lenses Into Your Mouth. It sounds like a funny concept, doesn't it? You wouldn't believe the number of people who do this. If you drop a contact lens, avoid rooting around the floor trying to find it, and if you do, definitely don’t put it in your mouth to lubricate it. Your mouth contains bacteria that can infect your eyes once you reinsert your contacts. Play it safely by carrying around an emergency pair of glasses or an extra pair of daily disposable contacts in your bag, your car, or at work.
Don't Overwear Your Daily Lenses. Wearing your lenses for long periods of time will hurt your eyes, even if they're daily contacts. The maximum recommended daily use for any contact lens is 14-16 hours, although Jonathon Jimmerson, OD will determine the exact number of hours you should wear your lenses. Your eyes, like any other part of your body, need to rest. Your corneas receive oxygen from the air, not from blood vessels, and while it’s healthy to wear contacts during the day, wearing them for extended periods can significantly reduce the amount of oxygen your eyes receive, which can lead to complications. If you don't give your eyes the rest they need, your corneas might get swollen, which can lead to corneal abrasion and even bacterial infection.
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