All About

Astigmatism Treatment

Symptoms

Signs and symptoms of astigmatism may include:

  • Blurred or distorted vision
  • Eyestrain or discomfort
  • Headaches
  • Difficulty with night vision Squinting

Causes

Your eye has two structures with curved surfaces that bend (refract) light onto the retina, which makes the images

  • The cornea, the clear front surface of your eye along with the tear film
  • The lens, a clear structure inside your eye that changes shape to help focus on near objects

In a perfectly shaped eye, each of these elements has a round curvature, like the surface of a smooth ball. A cornea and lens with such curvature bend (refract) all incoming light equally to make a sharply focused image directly on the retina, at the back of your eye.

More about Treatment

Astigmatism (uh-STIG-muh-tiz-um) is a common and generally treatable imperfection in the curvature of your eye that causes blurred distance and near vision.

Astigmatism occurs when either the front surface of your eye (cornea) or the lens, inside your eye, has mismatched curves. Instead of having one curve like a round ball, the surface is egg shaped. This causes blurred vision at all distances.

Astigmatism is often present at birth and may occur in combination with nearsightedness or farsightedness. Often it's not pronounced enough to require corrective action. When it is, your treatment options are corrective lenses or surgery.

 

 

FAQ on this Treatment

What causes astigmatism?

The defect in the curve of the cornea (outermost transparent layer of the eye) can be present by birth or can be acquired later in life by injury or surgery.

Who is prone to developing astigmatism?

Though there are no such risk factors for astigmatism, but chances are higher if there is a family history of astigmatism, or if any other eye condition is present like thinned cornea etc.

How is astigmatism diagnosed?

Various eye tests like vision tests, refraction tests, keratometry (measuring the bend in the cornea) are done to diagnose astigmatism. A recent advanced technology is corneal topography that uses computer to determine the corneal shape with accuracy.

What is the treatment for astigmatism?

Astigmatism can be treated by a LASIK surgery - a laser eye surgery that can fix the error in the refraction of the eye.

How does LASIK surgery help astigmatism?

LASIK uses a laser beam to correct the bends and faults in the shape of lens or cornea permanently by creating a flap on the outer layer, and then sculpting the lower layers to bring uniformity in the curvature of cornea or lens.

What are the non-surgical alternatives for astigmatism?

Corrective lenses (spectacles or contact lenses) can be used to counteract refractive error in astigmatism; however, LASIK is preferred as it relieves the patient of necessity of eternal eyewear.

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Anavara thanks the  following websites for information on treatments and diseases .

www.who.int                                     www.mayoclinic.org                      www.webmd.com

www.medicalnewstoday.com           www.cincinnatichildrens.org         www.england.nhs.uk

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