What You'll Get
THE PATIENT AND ANY OTHER PERSON RESPONSIBLE FOR PAYMENT HAS A RIGHT TO REFUSE TO PAY, CANCEL PAYMENT, OR BE REIMBURSED FOR PAYMENT FOR ANY OTHER SERVICE, EXAMINATION, OR TREATMENT THAT IS PERFORMED AS A RESULT OF AND WITHIN 72 HOURS OF RESPONDING TO THE ADVERTISEMENT FOR THE FREE, DISCOUNTED FEE, OR REDUCED FEE SERVICE, EXAMINATION, OR TREATMENT.
- A Comprehensive Exam, Contact Lens Evaluation, and Set Diagnostic Lens
Contact Lenses: Putting Things in Focus
Unlike eyeglasses, contact lenses sit directly on the eye, providing wearers with the benefit of thinner lenses that move in sync with their eye movements. Read on to learn more about how they work.
Contacts stay put by floating on the natural layer of liquid—known as the tear film—that coats the cornea. Hard lenses, sometimes called rigid lenses, are durable and can sometimes last for multiple years. In comparison, soft lenses require frequent replacement, but tend to be more comfortable. Today’s contact-lens technology allows people to make all types of changes to their eyes, from augmenting their hue with colored lenses to slowly correcting misshapen corneas with ortho keratology treatments.
Shedding Light on Poor Vision
For those with perfect vision, light enters the eye through the pupil and comes into focus directly on the retina in the back of the eye. Vision problems usually result from light coming into focus on the retina at the wrong distance—if the focal point is in front of the retina blurry images of faraway objects occurs (nearsightedness). When the focal point is behind the retina, patients tend to have more trouble focusing on close-up objects (farsightedness). Just like regular lenses, contacts bring the focal point forward or backward so the light focuses correctly on the retina. Even people with astigmatism—in which light focuses on two separate points in the eye—can benefit from contacts. Instead of a spherical shape, astigmatic lenses assume a toric shape, which is more pointed, like a football, than a normally rounded eye.
- More than 30 million Americans wear contacts—about 5% of the country’s total population of eyes, including cyclops.
- The power of contact lenses is expressed in diopters. A plus sign is used for farsightedness and a minus sign for nearsightedness.
- Contact lenses are a quick fix for those with heterochromia iridum, a discoloration of the irises that makes eyes appear two different colors.
The Fine Print
Promotional value expires 120 days after purchase. Amount paid never expires. Limit 1 per person, may buy 1 additional as a gift. Limit 1 per visit. All goods or services must be used by the same person. Not valid with insurance or with other promotions or discounts. Vaild only for Spherical Lenses. Contact Lens evaluation is based on Spherical Lenses only. Toric and Multifocal lenses are excluded from the offer. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.