Contact Lenses for Astigmatism


When your eye doctor tells you that you have astigmatism, this means that your eyeball is not spherical. Studies show that everyone has astigmatism to a certain degree. Normally, an eyeball has the shape of a perfect ball. It provides you a clear picture because light bends uniformly. In astigmatism, your eye is in the shape of a football. When light passes through, it bends unevenly. More light goes to one direction than the other. You can only focus on one part of an object in your line of vision. When you look at something far from you, it may look wavy or blurry. If you have astigmatism and you want to correct it, here are some types of contact lenses to correct this eye condition.

 

Hybrid

 

This type of contact lens may be the most suitable ones for people diagnosed with astigmatism. Hybrid contact lenses have a skirt or fitting zone made of silicone hydrogel or soft hydrogel. This zone surrounds a central zone made of hard gas permeable material. Hybrid lenses combine the comfort of toric lenses, and the sharp vision provided by gas permeable (GP) lenses.
 

It’s less likely that hybrid lenses will drop or dislodge from your eyes because they are customized to fit your eyes.
 

Like GP lenses, hybrid lenses do not need frequent replacements. It is ultimately more economical to use hybrid contact lenses than soft contacts.

 

Gas Permeable

 

Also known as rigid gas permeable (RGP) contact lenses, gas permeable (GP) contact lenses are popular in correcting astigmatism. The rigidity of these lenses can keep their round shape on your eye. It doesn’t follow the irregularly shaped cornea that you have when you have astigmatism.
 

The stable and even front of GP lenses take the place of the malformed cornea, which is supposed to be the primary light bending part of your eye. GP lenses can rectify astigmatism without controlling the lens rotation through a toric lens design. A variation of a GP lens is a scleral lens, which corrects astigmatism in corneas with extremely irregular surfaces.
 

It may take some time for you to fit and adapt to GP lenses. It also costs more than soft lenses.

 

Toric

 

These lenses are also known as soft contact lenses that correct astigmatism. These can be made of either silicone hydrogel or hydrogel.
 

Toric lenses can correct farsightedness (hyperopia) and nearsightedness (myopia). They can rotate to their correct orientation on your cornea. This allows the alignment of the eye’s meridians with the power meridians of the toric lens, resulting in clear eyesight.
 

Although toric contact lenses are soft lenses, their special design is more complicated than regular soft contact lenses. Because of this, toric lenses cost more than regular soft contacts.


 

It’s always best to go to an eye specialist so that you can get the right contact lenses to correct your astigmatism. We, at Trinity Eye Care, are devoted to providing you with only the most fitting contact lenses to set your astigmatism right. To set your appointment, please call us at 972-895-9260. You can also visit our clinic in Plano, Texas if you want to have a walk-in consultation.