Convergence insufficiency

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Convergence Insufficiency (kənˈvɜːrʒəns ɪnˈsʌfɪʃənsi) is a condition that affects the ability of the eyes to work together when focusing on nearby objects.

Etymology

The term "convergence" comes from the Latin convergere, meaning "to incline together", while "insufficiency" is derived from the Latin insufficientia, meaning "inadequacy".

Definition

Convergence insufficiency is a binocular vision disorder characterized by the eyes' inability to maintain proper alignment when focusing on objects at a close range. This condition often results in symptoms such as double vision, eye strain, and difficulties with reading and other close-up tasks.

Symptoms

Common symptoms of convergence insufficiency include:

Causes

The exact cause of convergence insufficiency is not known. However, it is thought to be related to a lack of coordination between the extraocular muscles, which control eye movements.

Treatment

Treatment for convergence insufficiency typically involves vision therapy, a type of physical therapy for the eyes and brain. This may include exercises to improve coordination and endurance of the eye muscles. In some cases, prism glasses may also be recommended.

Related Terms

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