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2. List of soft contact lens materials - Wikipedia

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

   In the US market, soft contact lenses are approved by the US Food and Drug Administration. [2] The American Optometric Association published a contact lens comparison chart called Advantages and Disadvantages of Various Types of Contact Lenses on the differences between them. [3] These include: soft contact lenses; rigid gas-permeable (RGP ...

3. Contact lens - Wikipedia

   en.wikipedia.org/wiki/Contact_lens

   Contact lenses are ocular prosthetic devices used by over 150 million people worldwide, [1] and they can be worn to correct vision or for cosmetic or therapeutic reasons. [2] In 2010, the worldwide market for contact lenses was estimated at $6.1 billion, while the US soft lens market was estimated at $2.1 billion. [3]

4. 10 can't-miss Walmart deals you need to shop this week - AOL

   www.aol.com/lifestyle/10-cant-miss-walmart-deals...

   Walmart may have a big sale on the horizon, but there are still some sizzling deals to hold us over, including a 50-inch TCL 4K smart TV for under $200. ... 3 Pack. $8 $15 Save $7. See at Walmart ...

5. Oxygen permeability - Wikipedia

   en.wikipedia.org/wiki/Oxygen_permeability

   Polymacon, the material used in the first hydrogel contact lenses in some countries in the 1960s and approved by the FDA in the U.S. in 1971, has a Dk of 9 . These days, typical values of oxygen permeability for hydrogel contact lenses range from 25 to 50. For example, Nelfilcon A has a Dk value of 26, and the Omafilcon A has a Dk of 25.

6. Acuvue - Wikipedia

   en.wikipedia.org/wiki/Acuvue

   With 30 employees, Frontier manufactured a line of hard contact lenses through the 1970s. During the 1970s, Frontier developed a new material (etafilcon A), and the company began making soft lenses. Frontier was among the first in the US to take this material, widely used in Europe, and combine it with a lathe cutting process to produce soft ...

7. Hypermart USA - Wikipedia

   en.wikipedia.org/wiki/Hypermart_USA

   Hypermart USA (or Walmart's USA after 1990) was a demonstrator project operated by Walmart in the 1980s and 1990s, which attempted to combine groceries and general merchandise under one roof at a substantial discount.