List of soft contact lens materials
Wikimedia list article
Soft contact lenses are one of several types of contact lenses for corrective vision eyewear as prescribed by optometrists and ophthalmologists.
Background
In the US market, soft contact lenses are approved by the US Food and Drug Administration. 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. These include:
soft contact lenses
rigid gas-permeable (RGP)
daily wear
extended wear
disposable
planned replacement contact lenses.
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 eye while you wear your lenses.
History
The first contact lenses were made of glass, in 1888. Initially the glass was blown but soon lenses were made by being ground to shape. For the first fifty years, glass was the only material used.
Begin with the source’s own compact description: “List of soft contact lens materials” is wikimedia list article. The dossier treats that line as a proposition to test through List, soft and contact, not as a finished interpretation.
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This entry incorporates text from “List of soft contact lens materials” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.