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Top Doctors
Top Doctors editorial
Top Doctors
Created by: Top Doctors editorial

What are toric lenses?

Toric lenses are a special type of contact lens for people with astigmatism. Astigmatism is an eye condition which causes problems with both long- and short-distance vision, due to an irregularly shaped cornea.

Toric lenses come in three types:


How do toric lenses work?

Toric lenses have a complex shape which corrects for the irregular shape of the cornea in people with astigmatism. This is the key difference with a regular contact lens, which is spherical.

The irregular shape of the toric lens means that correct fitting is essential. A regular contact lens is symmetrical on all sides so if it rotates while in the eye, the wearer’s vision is not affected. A toric lens, in contrast, has different sections with differing refractive power. These sections need to be aligned properly with the parts of the cornea being corrected. If the lens rotates while in the eye, the resulting misalignment can produce blurry vision.

What are the risks?

It’s important to make sure that you regularly change your contact lenses and do not wear them for longer than is recommended. The main risks of misuse are dry eyes and infection. Infection can lead to serious eye problems and further loss of vision. For more information on contact lens-related problems, click here.

What are the alternatives?

The main alternatives to toric lenses if you have astigmatism are: