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What is contact lens for astigmatism?

contact lens for astigmatism

Astigmatism is a common vision condition that happens when a person’s cornea is not symmetrical. These type of people need contact lens for astigmatism to correct their vision. Light entering the eye is not focused on a single point on the retina, so objects both near and far become blurred or distorted. An astigmatism can also occur in the lens of your eye, which sits just behind your cornea. If you’re diagnosed with a lenticular astigmatism, it means you have a misshapen lens.

The cornea of the eye is usually spherical. However, some people have astigmatism, which is when the cornea has an unnatural curve to it. This means that your eye is not entirely able to adjust to the light that enters it. As a result blurred or distorted vision occurs.

Astigmatism is a common refractive error and is easily corrected with toric lenses. Most people who are short-sighted (myopic) have some level of astigmatism. However, it may not be pronounced enough to wear contact lenses for astigmatism.

Laser cataract surgeon Dr Lewis Levitz of Vision Eye Institute explains toric lenses. http://www.visioneyeinstitute.com.au

A toric lens is a lens with different optical power and focal length. They exist in two orientations perpendicular to each other. The lenses act like a combination of a spherical lens and a cylindrical lens. Toric lenses are used in contact lenses and glasses to correct astigmatism.

What do toric contact lenses for astigmatism do?

If you have astigmatism, toric contact lens can help to correct astigmatism and offer a balanced and clear vision to the wearer. They form a torus shape, which makes them able to bend and adjust better to the eye. This will help the wearer to have more accurate visual correction.

Toric lenses also need ‘axis’ and ‘cylinder’ values. The axis figure represents the location of the astigmatism on the eye and ranges from 5 to 180 degrees. A cylinder value is the power used to correct the vision. For this reason, they are sometimes referred to as cylinder contact lenses.

Toric lenses are highly recommended choice for correcting astigmatism. They offer different correctional powers across different meridians of the lens. They also rotate into position so that these powers line up with the meridians of the eye requiring the visual correction.

To find out more about astigmatism and toric contact lenses product, head over to our official online store shop.malayaoptical.com or you can ask our optometrist for astigmatism contact lenses that are right for you. Book your appointment today.