Contact lens materials

Contact lenses are made from various materials that determine their comfort, durability, and oxygen permeability. Common types include hydrogel lenses, which are soft and absorb moisture, and silicone hydrogel lenses, which allow more oxygen to reach the eye, promoting healthier wear. Rigid gas permeable (RGP) lenses are made from harder plastics that also allow oxygen flow while offering sharper vision. Each material has specific benefits, such as extended wear time or less risk of eye irritation, allowing users to choose based on their lifestyle and vision needs. Proper selection and care are essential for eye health.