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2. Oxygen permeability - Wikipedia

   en.wikipedia.org/wiki/Oxygen_permeability

   Oxygen permeability (OP) is a parameter of a contact lens that expresses the ability of the lens to let oxygen reach the eye by diffusion. In soft contact lenses, it is dependent on the thickness of the lens and the material of the lens, especially concerning the water content. Because of this dependence on thickness, transmissibility level (abbreviated Dk / t), the Dk per thickness of the ...

3. 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) daily wear extended wear disposable planned ...

4. Alcon - Wikipedia

   en.wikipedia.org/wiki/Alcon

   Alcon Inc. (German: Alcon AG) is a Swiss-American pharmaceutical and medical device company specializing in eye care products. It has a paper headquarters in Geneva, Switzerland but its operational headquarters are in Fort Worth, Texas, United States, where it employs about 4,500 people. [2] Alcon was a subsidiary of Novartis until April 2019, when it was spun out into a separate publicly ...

5. Recent recalls, FDA warnings about eye care products are ...

   www.aol.com/lifestyle/recent-recalls-fda...

   The latest recalls and warnings underscore the need to properly vet your eye drops and other eye care products, say experts.

6. Over 27 Eye Drops Have Been Recalled: What You Need to Know - AOL

   www.aol.com/eye-drop-recall-know-113000380.html

   Eye drops are being recalled due to a rare bacterium found in artificial tears. Find a list of recalled drops in 2023. Plus, eye infection symptoms.

7. Contact lens - Wikipedia

   en.wikipedia.org/wiki/Contact_lens

   Contact lens. A pair of contact lenses, positioned with the concave side facing upward. Putting contacts in and taking them out. One-day disposable contact lenses with blue handling tint in blister-pack packaging. Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic ...