What should I do if I sleep in or leave my lenses in overnight by mistake?
If you fall asleep with your lenses in, you might find that they've become stuck to the surface of your eye - especially if you're dehydrated, i.e. after drinking alcohol.
Never attempt to remove your lenses if they do not come off easily. Instead, you should blink and apply lens comfort drops until your eye surface becomes moist. The lenses will then become mobile again and easier to remove.
It's a good idea to leave your lenses out the following day to give your eyes a chance to recover.
If you have any persistent discomfort or redness see your optician as soon as possible.
If your lifestyle or work requires you to wear your lenses for long hours or even to sleep in them, then there's a lens type that is designed to be worn in this way - the continuous wear lens. Your optician will be able to tell you if they're suitable for your eyes or not.