How “sight” is NOT “vision”

 

 

Sight is not the same as vision.

 

“Eyesight” is a physical process of focusing light within our eyes, whereas “vision” involves our ability to understand what is seen.

 

It is estimated that as much as 80 percent of all learning during a child’s first 12 years comes through vision.

 

Because a child has 20/20 visual acuity according to the Snellen Test (eye chart) does NOT mean he or she has good vision. The eye chart used by most schools for visual

screening assesses if a child is able to identify letters at a distance that a normal child would be expected to see—20 feet.

 

The Snellen Test does not identify the following problems:

 

 Near focusing (Most learning is done within an arm’s length;

   such as reading from a book or working at a desk.)

 

 Eye coordination (binocularity) and focusing

 

 Convergence (a visual skill required for reading)

 

 Eye movement and tracking

 

 Depth perception and peripheral vision

 

 Visualization

 

 Strabismus (crossed or wandering eye)

 

 

While statistics show vision disorders are the number one handicapping condition for children, according to the American Foundation for Vision Awareness, use of the Snellen chart alone only identifies five percent of the vision problems in children.

 

Calgary Vision Therapy

Dr. Brent W. Neufeld, Optometrist

info@calgaryvisiontherapy.com

403-242-1800

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Suite 130, 2880 Glenmore Trail SE | Calgary, AB T2C 2E7 | Phone: 403-242-1800

 

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