Astigmatism is a type of refractive error. It is a common vision problem caused by an error in the shape of the cornea. The lens of the eye or the cornea, which is the front surface of the eye, has an irregular curve. This can change the way light passes, or refracts, to the retina, causing blurry, fuzzy, or distorted vision.
A corneal astigmatism happens when there’s a defect or distortion in the cornea. A lenticular astigmatism happens when there’s a distortion in the lens.
It’s not known what causes astigmatism, but genetics is a big factor. It’s often present at birth, but it may develop later in life.
It may also occur as a result of an injury to the eye or after eye surgery. Astigmatism often occurs with nearsightedness or farsightedness.
A rare condition called keratoconus can also cause astigmatism
Symptoms of astigmatism
The symptoms of astigmatism may differ in each person. Some people don’t have any symptoms at all. The primary symptoms of astigmatism include:
▪︎ Blurry, distorted, or fuzzy vision at all distances (up close and far away)
▪︎Difficulty seeing at night
See a doctor if you have symptoms of astigmatism. Some symptoms may also be due to other health or vision problems.
Visit sveyeclinic.com for more information.