Many who are not candidates for laser eye surgery opt for contact lenses for vision correction. Contact lenses can offer correction for most of the same vision problems that can be addressed through surgical procedures, while still maintaining the cosmetic appeal of not wearing glasses. Lenses can be made for correction of nearsightedness, myopia, and astigmatism. In the case of those considering monovision surgery for presbyopia, contacts will often be prescribed for a period of time prior to surgery, or may be a more viable therapeutic alternative to surgery.
Contacts lenses generally fall into three categories. Corrective,which are used primarily to improve vision; cosmetic, which are designed primarily to improve the appearance of the eye; and therapeutic, which are often prescribed for non refractive eye disorders.
The original contact lenses were made of glass. Modern contact lenses are made of either a soft or slightly rigid material with a great number of variations available on the market. Your eye care practitioner will be able to advise you of the best options and type of lens available for your eye condition.
Contact lenses, being a medical device, require an eye examination and a prescription from a qualified optometrist or opthamologist. Prior to 2004, contact lens wearers could only purchase contacts from their eyecare practitioner. Newer legislation gives consumer the right to a copy of their prescription, and they are now free to purchase contact lenses from optical chains or online venues. The ability to shop for your contact lens needs can result in considerable savings to the consumer.
Regardless of where purchased, it is still important to see your eye care practitioner for proper fitting and regular eye examinations.