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Using the Brock String Test to Strengthen Your Eyes
Cognitive FX Team

By: Cognitive FX Team Last Updated: January 24, 2019

Medically Reviewed by Dr. Alina Fong

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Using the Brock String Test to Strengthen Your Eyes

Life After EPIC Treatment  |  Education & Resources  |  Brain Safety & Care

 What is the Brock String Test? 

The Brock String Test is designed to test and treat visual perception problems. This is important because these problems can contribute to headaches, blurry vision, balance problems, and more. Symptoms that can be caused by a concussion. The Brock String Test really looks at two different things: convergence and suppression.

Convergence is when both eyes are looking forward and an object is moving closer and you have to almost cross your eyes. If you are not converging then one eye remains looking forward instead of meeting with the other eye. If this is one of your problems then you may be seeing double.

Suppression is when your brain has decided to ignore the signals from one of your eyes that are bring transmitted up to the brain. In this case, you will just see one field of vision, and it may be influencing your balance and your peripheral vision.

How Can I use the Brock String Test to Help my Eyes? 

The Brock String Test is an exercise you can do a few minutes a day to help re-train your eyes and help them to work properly with both convergence and suppression. So this test not only helps you understand if your eyes are working properly but it is the exercise that can strengthen them and help them to both converge and work together again for better focus, and less suppression. 

 We use this with many of our patients during EPIC Treatment, and many times it is a take home exercise that we encourage our patients to continue after treatment

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