Contact lenses are divided into two main categories: soft and rigid gas permeable. They can be classified as
Soft Contact Lenses
Soft contact lenses are made of a soft polymer plastic material combined with a percentage of water. Water allows oxygen to pass through the contact lens material and increases comfort. Many soft contact lenses also provide UV protection. Soft contact lenses are more comfortable than rigid gas permeable contact lenses when first inserted into the eye.
Daily Disposables. These soft contact lenses are only worn for one day and then thrown away. The benefits include not having to clean your contact lenses on a regular basis, convenient replacement schedule, and reduction of dry eye and irritation related to contact solutions. If you are an allergy sufferer, these are the contact lenses for you.
Silicone Extended Wear Disposables. These soft contact lenses are made with a new silicone hydrogel material that can be worn for up to 30 nights and days. The new material also prevents deposit build up and reduces dry eye irritation. However, it is safer to wear contact lenses during the day and remove and give eyes a rest at night.
High-Definition Disposable Contact Lenses. These soft contact lenses are replaced monthly. The high-definition lenses provide a clearer and sharper vision, especially at night, and are designed to reduce halos and glares.