Which material is fluorinated to produce fluorine addition?

Which material is fluorinated to produce fluorine addition?

• A. Hydrogel
• B. PMMA
• C. Fluoro-silicone/acrylate
• D. Silicone/acrylate

Answer: (C)

Fluorination of a lens polymer is done to introduce fluorine into the polymer, which helps tune properties like chemical resistance and oxygen permeability. The material that is fluorinated to produce fluorine addition is fluorosilicone/acrylate because its formulation includes fluorinated siloxane segments (and often fluorinated acrylate monomers). Those fluorinated components explicitly add fluorine into the polymer, giving a fluorine-rich structure that can improve oxygen permeability while maintaining desirable mechanical properties. The other options rely on non-fluorinated or less fluorinated chains, so they don’t involve the intentional fluorine incorporation that defines fluorosilicone/acrylate.

Fluorination of a lens polymer is done to introduce fluorine into the polymer, which helps tune properties like chemical resistance and oxygen permeability. The material that is fluorinated to produce fluorine addition is fluorosilicone/acrylate because its formulation includes fluorinated siloxane segments (and often fluorinated acrylate monomers). Those fluorinated components explicitly add fluorine into the polymer, giving a fluorine-rich structure that can improve oxygen permeability while maintaining desirable mechanical properties. The other options rely on non-fluorinated or less fluorinated chains, so they don’t involve the intentional fluorine incorporation that defines fluorosilicone/acrylate.