Several different types of contact lenses are available to treat vision problems. Consult an eye doctor who is willing to work with you to select the best type of lens for your needs and lifestyle.
Hard contact lenses
Most hard (rigid) lenses are made of gas-permeable materials that allow oxygen to reach the cornea. This reduces problems that may occur when the cornea does not get enough oxygen. They correct refractive errors, including astigmatism, with no distortion.
Soft contact lenses
Soft (silicone hydrogel) lenses are made of soft, very flexible plastics that absorb water (up to 90% of the lens weight). Many people find them more comfortable to wear than hard lenses, but hard lenses usually provide sharper vision. Soft lenses are more fragile than hard lenses and require more intensive cleaning. Soft lenses that can correct astigmatism are called toric lenses.
There are two types of disposable lenses:
|Primary Medical Reviewer||Kathleen Romito, MD - Family Medicine|
|Specialist Medical Reviewer||Christopher J. Rudnisky, MD, MPH, FRCSC - Ophthalmology|
|Last Revised||June 24, 2011|
Last Revised: June 24, 2011
Author: Healthwise Staff
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