Contact lenses come in two different types: hard and soft. Hard contact lenses come in two forms; non-gas permeable and gas permeable. Gas permeable lenses allow oxygen to reach the corneal surface and are more flexible than non-gas permeable lenses. Gas permeable lenses are the most commonly used form of hard contacts.

Online price comparison for various types of contacts: daily wear, monthly wear, toric, bi-focal, RGB-rigid gas permeable, and others. Search for best deals from: Bausch & Lomb, Boston, Ciba Vision, Cooper Vision, Johnson & Johnson, OSI, American Hydron, Sunsoft, Wesley-Jessen, Specialty Ultravision, Acuvue 2, DuraSoft, Expressions, Focus, FreshLook, Illusions, and Natural Touch. Also included are specialty lenses such as Crazy Lenses and WildEyes.