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The symptoms and signs associated with convergence insufficiency are related to prolonged, visually demanding, near-centered tasks. They may include, but are not limited to, diplopia (double vision), asthenopia (eye strain), transient blurred vision, difficulty sustaining near-visual function, abnormal fatigue, headache, and abnormal postural adaptation, among others.
A large-scale randomized clinical trial known as the Convergence Insufficiency Treatment Trial (CITT) found that office-based vision therapy combined with at-home therapy was more effective than placebo therapy (in-office placebo treatments) for improving symptoms and clinical signs of convergence insufficiency in children and adults.
Binasal occlusion is used in treatment of patients with sensory deficits due to complications of traumatic brain injury or having had a stroke, as well as patients with diplopia, esotropia, convergence excess, divergence insufficiency, or visual overstimulation. [2]
Suppression of an eye is a subconscious adaptation by a person's brain to eliminate the symptoms of disorders of binocular vision such as strabismus, convergence insufficiency and aniseikonia. The brain can eliminate double vision by ignoring all or part of the image of one of the eyes.
A Cochrane Systematic Review compared several surgical treatments (myectomy, recession, anterior transposition, disinsertion) in people with fourth nerve palsy. [7] While there was not enough high-quality evidence to recommend the best surgical treatment, all four types of surgery did result in a reduction of hypertropia. [ 7 ]
HBOT treatment for a concussion is accomplished through a medical-grade chamber that is pressurized with 100 percent pure oxygen. During treatment, a person lies down for approximately 90 minutes ...
The Brock string is commonly employed during treatment of convergence insufficiency and other anomalies of binocular vision. It is used to develop skills of convergence as well as to disrupt suppression of one of the eyes. [1] During therapy, the one end of the Brock string is held on the tip of the nose while the other is tied to a fixed point.
Vision therapy is a broad concept that encompasses a wide range of treatment types. [3] These include those aimed at convergence insufficiency – where it is often termed "vergence therapy" or "orthoptic therapy" – and at a variety of neurological, educational and spatial difficulties. [3]