If you need or prefer contact lenses, you can choose from daily wear soft and rigid gas-permeable, extended-wear frequent replacement, eye color enhancement lenses and standard hard lenses. But not all lenses are appropriate for all vision conditions and, to a large degree, successful, wear depends on the professional skill and knowledge of your optometrist and how well you follow his or her instructions. When you are considering contact lenses, seek an optometrist who is a skilled contact lens prescriber, offers a variety of lenses and provides complete optometric care, including follow-up examinations.