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It's our Vision to Help Yours
 
Astigmatism
   
Astigmatism is a very common disorder and is easily corrected.

Most of us have some degree of astigmatism. Astigmatism results in blurred vision at all distances. It is known as a refractive disorder of the eye.

Refraction is the bending of light. When a light wave enters the eye, it is bent by the cornea as it makes its way through to land on the retina.

The cornea, lens and retina contribute to clear vision at all distances. In astigmatism, vision is blurred due to either an irregularly shaped cornea or lens.
Astigmatism

Causes

Lenticular astigmatism is rarer and caused by an irregularly shaped lens. It is associated with diabetes as blood sugar levels can result in a change in the lens’ shape. Corneal astigmatism is much more common and caused by an irregularly shaped cornea. The cornea is normally symmetrical and round, but in astigmatism the cornea can become elongated like a football. This causes the light rays to split in the eye, never achieving a singular point of focus.

Why some people are born with an elongated cornea is unknown. Some studies show that it could be hereditary. Astigmatism is prevalent in premature babies and babies born at a low body weight.

Astigmatism can be caused by injury to the eye and subsequent scarring of the cornea. Some surgeries that can scar the cornea may also cause astigmatism. Keratoconus, a disease of the eye that causes a thinning of the cornea to occur, can cause astigmatism by changing the shape of the cornea.


Onset and Treatment
Astigmatism reveals itself early. While slight cases of astigmatism may not need to be corrected, large amounts of astigmatism can cause blurred vision, headaches and eye strain.

People who have myopia, nearsightedness, or hyperopia, farsightedness, are likely to have some degree of astigmatism. Myopia, hyperopia and astigmatism are all known as refractive disorders as they affect the way that the eye is able to bend, or refract, light rays onto the retina.

A complete eye exam will test for astigmatism. Retinoscopy or an automatic refraction test may be performed to detect astigmatism.
astigmatism eyeglasses
Treatment options for astigmatism include eyeglasses or contact lenses. Orthokeratology is another treatment that involves wearing special contact lenses that gradually reshape the cornea into its proper dimensions.


Advanced Treatment
Advanced treatments for astigmatism include:
• Laser eye surgery: A surgical procedure where vision is corrected by removing a small part of the eye with a laser. Using a highly focused laser beam, a specialist cuts away a bit of eye tissue, flattening the cornea and correcting the focus.

• Astigmatic keratotomy: A surgical procedure where the cornea is reshaped by a surgeon. Tiny cuts are made in the cornea along the steepest curves, refocusing the light that enters the eye to its proper place. This surgery is replacing laser eye surgery as the preferred treatment for high levels of astigmatism.


Diagnosis
A diagnosis of astigmatism can be made during the course of a comprehensive eye exam. A phoropter allows the doctor to show a series of lenses to a patient, switching back and forth between them to determine the best fit for corrective lenses.

A keratometer, a device to measure the curvature of the cornea, may be used as well. Corneal topography is a technologically advanced treatment where computer imaging is used to make a map of the cornea. This map provides the most complete view of the cornea and is used when diagnosing astigmatism, as well as being used to fit contacts to the eye and prepare patients for eye surgery.


Prevention
There is no known way to prevent astigmatism. Maintaining overall health as a means to eye health is always recommended. Fruits and vegetables high in vitamins A, C and E are key foods for eye health.

Taking frequent breaks while doing close work allows the ocular muscles to unwind and can help ward off eye strain. Try looking off into the distance every ten minutes or so to keep your eyes relaxed. Wearing sunglasses to prevent UV damage to the eyes helps keep vision sharp later in life.


When to see an eye care professional
If you are experiencing headaches, fatigue, eye strain or blurred vision, you may have astigmatism and should be examined by an optometrist or ophthalmologist.

Always see an eye care professional immediately if you have any sudden changes in vision. This includes darkening around the edges of your vision, dark spots in front of your eyes, halos around bright lights, a loss of vision in one part of your field of sight or any other noticeable change.
 
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Dana Kinberg Optometrist    

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DR. DANA KINDBERG OPTOMETRY
Dr. Kindberg’s focus is treating your family’s eye care needs, while keeping in mind that the eyes are the windows to a person’s overall health. This allows Dr. Kindberg to look for and monitor signs of diabetes, high blood pressure and other systemic diseases. Dana's expertise, along with her caring and compassionate demeanor, puts her patients at ease while her expertise and knowledge ensure excellent patient care. Dr. Kindberg remains committed to adhering to the clinic’s core value of excellent medical eye care and each patient’s best vision.

We will make every effort to take a complete approach to your eye care. This means that we will take the time to not only understand your eye health and visual needs, but your general health, lifestyle, and dietary habits as well. This is somewhat rare in health care today, but we think you will find it to be a refreshing change.

Schedule your Eye health and Vision appointment today with our experienced eye care providers inside LensCrafters at our Overlake Plaza or Redmond Town Center in our Redmond Washington locations and give your vision the level of care and attention your vision and health deserves.



Overlake Plaza 2040 148th Ave NE Redmond, WA 98052 Phone: (425) 641-9202 Fax: (425) 641-9204
Redmond Town Center 7330 164th Ave NE Suite E150 Redmond, WA 98052 Phone: (425) 869-2337 Fax: (425) 376-2627

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