Amblyopia

somber boy with amblyopia

Amblyopia, commonly called lazy eye, refers to the improper development or significant loss of vision in an eye. It occurs when the brain does not acknowledge the images seen by the amblyopic eye.

Amblyopia Causes

Amblyopia occurs when an individual cannot use binocular vision (both eyes working together) due to one of three reasons:

  1. Strabismus - The most common cause of amblyopia is strabismus, a misalignment of the eyes. To prevent the double vision caused by strabismus, the brain ignores information from one eye.
  2. Unequal Refractive Errors - Refractive amblyopia occurs when the brain favors one eye due to extreme nearsightedness, farsightedness, or astigmatism in the other eye.
  3. Vision Obstruction - Called deprivation amblyopia, this type of lazy eye is caused when an infant's vision is obstructed and hindered from normal development. Congenital cataracts typically cause this type of amblyopia, and require surgery for treatment.

Who is at Risk?

A condition associated with eye development, amblyopia usually begins in infancy or early childhood. For this reason, amblyopia can be difficult to detect. Eye care professionals recommend children have an eye exam at six months, three years, and before starting school to diagnose amblyopia early.

Signs and Symptoms of Amblyopia

The primary symptom of amblyopia is the loss of vision in one eye. Since amblyopia does not have many outward symptoms and is often present in infants and young children, it can be difficult to spot.

In some cases, a misalignment of the eyes will be apparent. To test infants at home, a parent can try covering one of the child's eyes at a time while observing behavior. If the infant consistently fusses or cries when one eye is covered, this might indicate a vision problem. Since amblyopia most commonly affects only one eye, children will also consistently bump into objects on the affected side.

Diagnosis and Treatment

An eye care provider will diagnose amblyopia with visual acuity and binocular vision tests. Treatment will focus on strengthening the amblyopic eye and retraining the brain to use the weaker eye with eye patches, glasses, vision therapy, and sometimes strabismus surgery.

Treatment is most effective at a young age, but developments in eye care have successfully treated older patients. If left untreated, amblyopia leads to problems with depth perception, blindness in one eye, and if the stronger eye becomes injured, serious problems with visual acuity.

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Testimonials

  • I have worn contact lenses for years but due to my strong near-sighted prescription with high astigmatism could get neither the comfort nor vision very good in standard gas permeable lenses or in soft lenses. I had reverted back to wearing glasses most of the time until Dr. Krywko recommended the SynergEyes lenses. They work great for me and I can finally wear contacts again! Thank you, Dr. Krywko!

    ...
    Show More - Anna Garity
  • Dr. Candria Kryko is a wonderful OD. I was seen by Dr. Kryko in Scottsdale recently for an eye exam/contact lens fitting. She is extremely pleasant, attentive, and she took her time to give me a thorough exam and answer all of my questions. Dr. Kryko gave me recommendations on contacts and eye drops, as well, she gave me tips on how I can save on some of my contact expenses. She was professional, attentive, took the time to explain what was needed, and was simply nice to be around. I recommend Dr. Kryko. 

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  • My entire family have been seeing Dr. Krywko for years. The professionalism, care and focus are over the top. I was told by an optician I would not be a likely candidate for contact lenses. However with Dr. Krywko's patience and wisdom she was able to fit me for contact lenses that work perfectly! I am thrilled..........Plus, I also have the most gorgeous frames (when I do not want to wear my contacts. ) I receive comments every time I wear them, " where did you get your glasses!" Dr. Kryko just received the newest styles......I'm in trouble..........

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