| abstract |
An improved material for a soft contact lens, existing in the form of a hydrogel, is formed using a polymer containing a fluorinated monomer, a hydroxyalkyl ester of acrylic or methacrylic acid, and an N-vinyl lactam. . The polymer can also contain other hydrophilic and / or strongly hydrophobic monomers, crosslinking agents and agents absorbing ultraviolet rays. Contact lenses formed from these combinations have high levels of water of hydration, are highly wettable and extremely permeable to oxygen, and they resist protein deposits and other similar forms of debris. |