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Convergence-Insufficiency

What is Convergence Insufficiency?

What We Do

When we look at objects closer than 20 feet, our eyes point inward to triangulate (converge) on the object we’re focusing on (phone, book). Many people for many reasons have a deficiency in this function leading to blurry vision, double visions, eye strain, or even downgraded cognitive function, such as reading, and much more.

Please complete the Convergence-Insufficiency survey below:

Name
MM slash DD slash YYYY
Do your eyes feel tired when reading or doing close work?(Required)
Do your eyes feel uncomfortable when reading or doing close work?(Required)
Do you have headaches when reading or doing close work?(Required)
Do you feel sleepy when reading or doing close work?(Required)
Do you lose concentration when reading or doing close work?(Required)
Do you have trouble remembering what you have read?(Required)
Do you have double vision when reading or doing close work?(Required)
Do you see the words move, jump, swim or appear to float on the page when reading or doing close work?(Required)
Do you feel like you read slowly?(Required)
Do your eyes ever hurt when reading or doing close work?(Required)
Do you feel a “pulling” feeling around your eyes when reading or doing close work?(Required)
Do you notice the words blurring or coming in and out of focus when reading or doing close work?(Required)
Do you lose your place when reading or doing close work?(Required)
Do you have to reread the same line of words when reading?(Required)

For Children(< age 21) total score= 16 or higher is suggestive of convergence insufficiency.
For Adults total score= 21 or higher is suggestive of convergence insufficiency.

Reference: Borsting EJ, Rouse MW, Mitchell GL, et al and the CITT group. Validity and reliability of the revised convergence insufficiency symptom survey in children. Optometry and Vision Science 2003; 80( 12):832-838.

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