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2. Contact lens - Wikipedia

   en.wikipedia.org/wiki/Contact_lens

   History Origins and first functional prototypes Artist's impression of Leonardo's method for neutralizing the refractive power of the cornea. Leonardo da Vinci is frequently credited with introducing the idea of contact lenses in his 1508 Codex of the eye, Manual D, wherein he described a method of directly altering corneal power by either submerging the head in a bowl of water or wearing a ...

3. List of soft contact lens materials - Wikipedia

   en.wikipedia.org/wiki/List_of_soft_contact_lens...

   The US Food and Drug Administration (FDA) defines soft contact lenses as: made of soft, flexible plastics that allow oxygen to pass through to the cornea. Soft contact lenses may be easier to adjust to and are more comfortable than rigid gas permeable lenses. Newer soft lens materials include silicone-hydrogels to provide more oxygen to your ...

4. Essilor - Wikipedia

   en.wikipedia.org/wiki/Essilor

   Essilor International is an international ophthalmic optics company that designs, manufactures and markets lenses to correct or protect eyesight. [1] Its headquarters is in Charenton-le-Pont (near Paris), France . It is the world's largest manufacturer of ophthalmic lenses. [2]

5. 24 Big Summer Health Problems To Avoid at All Costs - AOL

   www.aol.com/24-big-summer-health-problems...

   If contact lenses are worn when swimming, pathogens can be exposed to the eye leading to major infections," Wang explained. "The most serious of these is acanthamoeba, which is a small parasite ...

6. Clearly - Wikipedia

   en.wikipedia.org/wiki/Clearly

   clearly.ca. Clearly is an online retailer of contact lenses, eyeglasses and sunglasses. The company was acquired by EssilorLuxottica Canada, and is headquartered in Vancouver, British Columbia. [1] They are one of the largest online contact lens retailers in North America, and the largest seller of prescription eyeglasses online in the world.

7. The Easiest Way to Save Money at Costco - AOL

   www.aol.com/lifestyle/easiest-way-save-money...

   Avoid paying for shipping on your Costco online order by purchasing at least $75 of non-perishable groceries. And since non-perishable groceries are among the best bulk items to purchase, this is ...