* properly adjust your cornea
* give you clear vision
* provide any benefits "extras" his wish (or require) such as color, desirable to remove daily or several powers.
Contact lenses come in tens of thousands of combinations of size, shape and power is why contact lenses are a prescription item and must fit by an experienced professional. This ensures comfort and great vision.
Your eye care practitioner will evaluate your eyes to determine which lens is ideal for you and take into account special, like must dry eyes, a willingness to change color or the need to wear during the night.
