Not caring for your underwear can lead to nasty smells, but not caring for your contact lenses can lead to nasty infections.
Replaces your contacts as often as your doctor tells you, and don't sleep in them. How often you replace your contacts depends on the type of contact they are. Ask Dr.Ephraim if you are unsure.
Avoid That Sketchy Pair
If a contact comes out and your can't disinfect it with fresh solution (NEVER use water or spit), throw it away. Also, don't buy contacts from costume shops or anywhere that doesn't require a prescription in.
Carry A Spare Pair (of Glasses)
If you need to take out your contacts for an unexpected late night or trip to the pool, or if a contact falls out, you should have a pair of back up glasses with you .