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2. List of soft contact lens materials - Wikipedia

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

   Acuvue Oasys, Acuvue Oasys for Astigmatism, Acuvue Oasys for Presbyopia, Acuvue Oasys 1-Day, Acuvue Oasys 1-Day for Astigmatism, Acuvue Oasys with Transitions, Acuvue Oasys Max 1-Day, Acuvue Oasys Max 1-Day Multifocal Senofilcon C: 41: 129–147: 0.77: 0.07: Acuvue Vita, Acuvue Vita for Astigmatism Sifilcon A: 1: 32: 82: 0.08: O 2 Optix Custom ...

3. Acuvue - Wikipedia

   en.wikipedia.org/wiki/Acuvue

   1-Day Acuvue Moist – (etafilcon A) hydrogel material (also available for astigmatism and presbyopia). Introduced in 2006. 1-Day Acuvue Define – (etafilcon A) hydrogel material, cosmetic contacts (UK release solely in Boots and D&A opticians in 2010) Acuvue Oasys 1-Day – (senofilcon A) silicone hydrogel material (available for astigmatism)

4. Contact lens - Wikipedia

   en.wikipedia.org/wiki/Contact_lens

   When comparing traditional hydrogel soft lens contacts with silicone hydrogel versions, there is no clear evidence to recommend a superior lens. [ 64 ] Disadvantages of silicone hydrogels are that they are slightly stiffer and the lens surface can be hydrophobic, thus less "wettable" – factors that can influence comfort of lens use.

5. Oxygen permeability - Wikipedia

   en.wikipedia.org/wiki/Oxygen_permeability

   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. While those numbers are typical of hydrogel contact lenses, many contact lenses are made of silicone hydrogel , which has a much higher oxygen permeability.

6. Effects of long-term contact lens wear on the cornea - Wikipedia

   en.wikipedia.org/wiki/Effects_of_long-term...

   Layers of the Cornea (1) Epithelium (2) Anterior elastic lamina (3) Substantia propria (4) Posterior elastic lamina (5) Endothelium of the anterior chamber Disposable, soft contact lenses. Keratitis, or an inflammation of the cornea. The effects of extended contact lens wear on the cornea have been studied extensively and are well-documented.

7. Silicone - Wikipedia

   en.wikipedia.org/wiki/Silicone

   Silicone caulk can be used as a basic sealant against water and air penetration. In organosilicon and polymer chemistry, a silicone or polysiloxane is a polymer composed of repeating units of siloxane (−O−R 2 Si−O−SiR 2 −, where R = organic group). They are typically colorless oils or rubber-like substances. Silicones are used in ...