DESC: ACUVUE Brand Contact Lenses, the world's first disposable contact lenses, offer the convenience of one-week extended wear. That means that you put them in and throw them away 7 days later (which means you can sleep in them!) That's because their thin design allow for high amounts of oxygen to be transmitted to the eye. And, since ACUVUE is made mostly of water, it works well with your natural eye fluids. They can also be worn as a two-week daily wear lens (which means you take the lenses out each night). Added features include UV-Blocking and an Inside-Out mark to make them easier to insert.