Contact lenses exist for comfort, vanity, enhanced correction and even therapeutic benefit. Lens types include soft contacts, colored contacts, hard contacts, bifocal contacts, toric contacts and corneal reshaping treatment.

Soft Contacts

Soft contacts are the most commonly prescribed lenses. They come in daily wear, extended wear and disposables, and are made from polymer-plastic material mixed with water.

Colored Contacts

Colored contacts are a version of soft lenses that enhance or change a person's eye color. Light-filtering tints are available to enhance a person's ability to see certain things (such as a ball in bright sunlight).

Hard Contacts

Hard contacts are gas permeable to provide more comfort and extend wearing time while providing the benefits of rigid lenses for certain correction needs. They are also made with silicone polymers.

Bifocal Contacts

Bifocal contacts are made for people with age-related eye disorders or presbyopia. They contain distance and close-up vision correction in one pair of contacts, and come in both rigid and soft types.

Toric Contacts

Toric contacts are for people with an astigmatism. They also have stabilizing properties to keep them relatively still even when a person blinks or move the eyes. They come in both rigid and soft varieties.

Corneal Reshaping Contacts

These contact lenses are designed to reshape the cornea to improve eyesight over time. This technique is especially effective for those with mild nearsightedness.

Source:

WebMD: Contact Lens Types