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Amblyopia

 

Question: What is the eye condition called Amblyopia?

 

Answer: Amblyopia* or Lazy Eye is the lack of development of vision in one eye that is not directly caused by any eye health problem. This condition occurs when there is a large difference in the prescription between the two eyes. It can also occur if the eyes suffer from a crossed eyed condition or when there is something interfering with the clarity of the various components of the eye.

When blurred vision in one eye is present, the image sent to the brain from that eye is poor. This will cause the brain to ignore the images from the affected eye. Over time the connections between the brain and the affected eye will be dramatically reduced. It is the lack of connections between the brain and the eye that causes the eye to become amblyopic. This is why lenses alone cannot correct this condition.

Most of the time, there are no symptoms of amblyopia. Since only one eye is affected, the other eye tends to take over all the visual tasks. Unless the good eye is covered, the patient will rarely notice the poor vision in the amblyopic eye.

 

The condition of amblyopia usually is the result of poor early vision development. Most of the time this condition occurs before the age of six. It is estimated that 2% - 4% of children under the age of six suffer from amblyopia.

A comprehensive optometric eye health examination done by your Optometrist can determine the presence of amblyopia or lazy eye. The earlier this condition is diagnosed, the greater the chance for a complete recovery. Treatment may involve covering the good eye so the brain is forced to recognize the amblyopic eye. This method of treatment will develop more connections between the brain and the affected eye and improve the vision in the eye. It should be noted that corrective lenses might also be necessary.

 

The Canadian Association of Optometrists recommends the following comprehensive eye health examination guidelines:

• Birth to 5 years: Immediately, if parents sense a problem, otherwise by age 3 and again prior to entering school.
• School age children 6-19 years: Annually or every 2 years.
• Over 19 years of age: Every 2 years or sooner if recommended by your Optometrist.

 

* All content is provided for education and information, and is no substitute for the advice of your optometrist. This information is provided courtesy of the British Columbia Association of Optometrists (B.C.A.O.). The B.C.A.O. assumes no responsibility or liability arising from any errors or omissions or from the use of any information contained herein.