Astigmatism is a condition that affects the shape of the eye, causing blurred vision. It is usually present at birth, and can last for a lifetime. While it is not a serious condition, it can impact daily activities such as reading or driving. However, it can be corrected with glasses, contact lenses, or surgery.
What Causes Astigmatism?
Astigmatism can be caused by an irregularly shaped cornea, the clear outer layer of the eye. It can also occur if the lens, which is located inside the eye, isn’t the right shape. In some cases, astigmatism can be caused by the shape of the eyelid.
How is Astigmatism Diagnosed?
Astigmatism is usually diagnosed during a routine eye exam. During the exam, the doctor will measure the curvature of the eye and use a device called a keratometer to measure the curvature of the cornea. The doctor may also use a refractor to measure how light is bent when it enters the eye.
How is Astigmatism Treated?
Astigmatism can be corrected with eyeglasses, contact lenses, or surgery. For mild astigmatism, eyeglasses with cylindrical lenses can be used to correct the vision. For more severe astigmatism, toric lenses may be needed. Contact lenses can also be used to correct astigmatism. For more severe cases, surgery may be recommended to reshape the cornea.
Can Astigmatism be Cured?
Astigmatism cannot be cured, but it can be corrected with the right treatment. With glasses, contact lenses, or surgery, astigmatism can be managed and vision can be improved.