Some people don't have to take out their lenses for 30 days at a time with Focus Night and Day contacts. Through a unique new design, these contact lenses allow you to wear them for longer and more comfortably than other contacts. Wearing Focus Night and Day contacts can be the next best thing to natural perfect vision.

Before Focus Night and Day contacts were created, there were two problems that kept contact lenses from being worn continuously for more than a week. The first problem was that previous lenses didn't let enough oxygen get to the cornea. Unlike other cells in your body, the cornea has no blood vessels and so must get its oxygen externally. And wearing contact lenses was reducing the cornea's ability to breathe.

But Focus Night and Day contacts allow up to six times as much oxygen to get to your cornea compared to other lenses. And this is especially important for overnight use when the supply of oxygen is most restricted.

The other problem that Focus Night and Day contacts had to overcome was keeping the lenses from accumulating harmful deposits. One of the functions of your tears is to keep your eyes clean. Unfortunately, the same thing that makes soft lenses so comfortable, is the same thing that gets them dirty. Soft contacts absorb water but they also absorb whatever your tears try to wash away. And this can lead to eye irritation or even infection.

To keep Focus Night and Day contacts from accumulating these deposits, they are given a biocompatible surface coating. The coating imitates the characteristics of the cells in your eye and tears more easily keep it clean. In fact, studies have shown no increase in bacteria or other deposits after 30 days of continuous wear.