Category Archives: Product Spotlight

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Interesting Historical Facts About Contact Lenses

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The original idea for contact lenses dates all the way back to sketches created by the brilliant Leonardo da Vinci. Half a millennium ago, the genius inventor mapped out plans for altering the refractive power of the eye. Later on, others experimented with modifying refractive powers by looking through both glass and water. And, finally, 120 years ago, German inventors became the first to make a genuine contact lens that fitted on the eye. Those primitive contact lenses, called scleral lenses, were constructed of glass, and they draped over the sclera, or white part, of the eye, as well as covering the cornea.

Though we’ve come a long way from these more primitive models, these early models laid the groundwork for modern day contact lenses.

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How Are Contact Lenses Made?

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Contact lenses are made in a number of ways. Soft lenses are most often cast-molded – with this process, the polymer material that the lens is made out of is inserted (in liquid state) into a two-piece mold. Next, the two pieces are pressed together to set and form the lens diameter, curvature, power, and edge. Finally, the contacts are then allowed to cure, which brings them to a solid state, while still remaining soft and pliable. They are then stored in sterile solution that mimics human tears, and then they are wrapped in a plastic pack, and shipped out.

Soft lenses can also be cut in a solid state, and then hydrated afterwards. And a third technique is called spin-casting. In this process the polymer is spun into the needed shape and prescription, and then allowed to firm into a pliable, soft lens. When the process is complete, all soft lenses are composed 30% to 50% water.

Gas-permeable lenses are made a bit differently. First, the liquid lens material is solidified into rods, which are then cut down into buttons. Then the buttons are cut into finished lenses using a computer-lathe. This computer-aided process creates a gas-permeable lens that is custom-fitted to the exact curvature of the patient’s eyes.

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The Ins-and-Outs of Contact Lenses

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If you have the mind of an engineer, and love breaking things down to their parts, here is a quick overview of the ins-and-outs of contact lenses. Contact lenses are essentially small, convex disks that offer optical benefits – such as improved near- or far-sightedness. They are specially created to cover the cornea (the front of the eye ball). On an interesting note, contacts don’t actually make "contact" with the surface of the cornea, they instead drape over it, and sit on a coating of tears that the eye produces naturally.

Contact lenses, which have been around for over a hundred years, are considered medical devices, and are thus overseen and regulated by the FDA. To acquire contact lenses, you first need to be examined by an eye doctor or eye care professional who is both qualified and certified to write a prescription for the proper contact lenses for you. After a visit with your eye doctor, you will learn how to properly wear and care for your lenses to preserve eye health.

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Acuvue 1 Day Moist for Astigmatism Contact Lenses: $50 Rebate!

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You can purchase Acuvue 1 Day Moist for Astigmatism Contact Lenses for an incredible rebate. These lenses offer a wet, soothing feeling for sensitive and dry eyes, and we'll give you $50 back for every 12 boxes you purchase.
 
Why drive from your eye doctor's office to a store? Replacemycontacts.com will give you the best price around, and we'll deliver directly to your home. Acuvue 1 Day Moist for Astigmatism Contact Lenses ensure moist, comfortable eyes every day. They're disposable and made to be worn for one day at a time. Replacemycontacts.com brings them to you for less. What are you waiting for?
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Customer Loyalty Program!

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ReplaceMyContacts.com is pleased to announce our brand new Customer Loyalty Program.

A special offer will be emailed to all previous customers with a unique invitation to place a re-order 1 month before their lens supply runs out. This offer must be redeemed within 30 days of receiving the special offer.

This program is not based on when a customer’s prescription will expire, rather a calculation between the total boxes ordered from the last purchase combined with the expected calendar date that supply will be used up.

We look forward to your participation as we expand this program!

As always, contact CustomerCare@replacemycontacts.com for any additional questions your may have.

Thanks again for your repeated business!

Sincerely,

ReplacemyContacts.com