Here you'll find everything you need to know about contact lenses including types of contacts, how to read your prescription and where to buy contact lenses.
Browse the Table of Contents below, or start by reading our Contact Lens Basics article.
Contact Lens Wearing Tips
Learn how to apply and remove contact lenses, as well as what to do to protect your eyes when you wear makeup.
Free Trial Contact Lenses - Special Offers
Rebates, discounts and free trials for contacts and care products.
Contact Lens FAQ
40+ commonly asked questions about contact lenses, with expert answers.
Understanding Your Contact Lens Rx
You need a prescription for contacts, even if they're just for looks. Here's what all those numbers and terms mean on the Rx form.
Teens & Contacts: What Parents Need To Know - Sponsored Section
Should your teen wear contact lenses? Read this Q&A to help you decide.
Contact Lenses for Dry Eyes
Do your contact lenses feel dry and uncomfortable? Read about the best contact lenses for dry eyes and remedies for contact lens-related dry eye.
Are Your Contacts Uncomfortable? Here's What to Do
Don't suffer! Here's solid advice for your specific symptoms or situation.
Contacts for Hard-to-Fit Eyes
Today almost everyone can wear contacts, but sometimes you need a little extra help.
Where To Buy Contact Lenses
How can you choose between eye doctors, retail stores and Internet sites? Our contact lens buying tips and price charts will help.
Buying Contact Lenses Online
Learn how to get the best price and value when shopping for contact lenses online.
Caring for Soft Contact Lenses
How to make sense of all the different products, and properly clean and disinfect your contact lenses. Also: Caring for RGPs, including how to avoid Acanthamoeba keratitis and fungal eye infections.
LASIK Fear Factor Quiz - Sponsored Section
This interactive guide will help you determine your "fear factor" about Lasik by addressing some of the most common concerns and separate fact from fiction so you can better understand the truth about Lasik and make an informed decision.
My LASIK Journey Guide - Sponsored Section
This useful guide provides the answers to all of your questions about LASIK, whether you're just starting your research or want information about the procedure and follow-up care.
Contact Lenses After LASIK
You might still need specially designed contact lenses after refractive surgery.
30-Day Contacts: A Smart Alternative to LASIK?
Both eliminate daily contact lens hassles. Compare the safety, effectiveness and cost of contact lenses and LASIK.
Contact Lens News & New Products / Eye Doctor Q&A
Google and Eye Care Company Alcon Planning New "Smart" Contact Lenses
July 2014 Contact lens maker Alcon (a divison of Novartis) is licensing Google's "smart lens" technology for all medical uses related to the eye.
Alcon says it will collaborate with Google to create contact lenses with embedded sensors and other miniaturized electronics to measure glucose levels in the tear fluid of the eyes. The measurements would be transmitted wirelessly to a mobile device, for viewing by diabetic patients and their doctors.
Another possible use of the technology would be to provide near-focusing capability for intraocular lenses that are implanted during cataract surgery. This would benefit people with presbyopia who would otherwise need reading glasses.
The collaboration will not be final until anti-trust approvals are obtained.
More contact lens news >
Today's contact lenses fall into two categories: soft lenses that are made from water-containing plastics, and GP or "oxygen permeable" rigid contact lenses.
Contact lenses may also be classified by wearing schedule. Daily wear contacts must be removed, cleaned and stored each night, while extended wear contact lenses are made from materials which are safe for overnight wear. Sometimes "continuous wear" is used for a type of extended wear lens that can be worn for up to 30 days.
Contacts can also be described by replacement interval that is, how often you discard the lenses and replace them with a fresh pair.
Daily disposable contact lenses are discarded nightly and therefore require no care, cleaning or lens case. Other common replacement intervals are weekly, bi-weekly, monthly or quarterly; any of those lenses can be called "disposable." Traditional, non-disposable lenses are usually replaced once a year, but these lenses are generally limited to unusual or difficult-to-manufacture prescriptions.
Various contact lens designs are available for different vision problems. Spherical contact lenses correct nearsightedness or farsightedness and are indicated by a minus or plus in your prescription, respectively. Bifocal contact lenses are similar to multifocal eyeglasses in that they use different optical zones to correct presbyopia (the age-related, decreased ability see at both near and far distances). Toric contact lenses correct astigmatism, which can accompany either nearsightedness or farsightedness.
Many lens designs come in colors that can enhance or change your natural eye color. Special-effect contact lenses are also available for novelty use and are used extensively in theatrical and filmed productions. Prosthetic lenses are colored contact lenses that can cosmetically mask eye disfigurement. Many contact lenses come with an embedded UV inhibitor as well.
Your eye care practitioner will help you choose contacts that:
Factors involved in prescribing the best contact lenses for your needs include: the size and shape of your eyes; your refractive error; whether you have presbyopia or dry eyes; your desired wearing time and lens replacement schedule; whether you want lenses that enhance or change your eye color; your willingness to clean and care for the lenses daily; and more.
Read an expanded introduction to contact lenses.
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[Page updated August 19, 2014]
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