Convergence Disorders

Exotropic Eyes Graphic


Problems with the vergence system fall into two major categories: problems at near (e.g., convergence insufficiency or convergence excess) and problems at distance (e.g., divergence excess or divergence insufficiency).


Convergence and divergence skills must be fast, accurate and consistent to maintain clear, single vision. Vergence dysfunction can result in double vision, blurred vision, headaches or visual discomfort. Additionally, vergence dysfunction disrupts the visual-vestibular system, which can cause dizziness and balance difficulties.

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