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Convergence insufficiency. Convergence Insufficiency. Other names. Convergence disorder. Specialty. Ophthalmology, optometry. Convergence insufficiency is a sensory and neuromuscular anomaly of the binocular vision system, characterized by a reduced ability of the eyes to turn towards each other, or sustain convergence .
Fusional amplitude and relative fusional amplitude training are designed to alleviate convergence insufficiency. The CITT study (Convergence Insufficiency Treatment Trial) was a randomized, double-blind multi-center trial (high level of reliability) indicating that orthoptic vision therapy is an effective method of treatment of convergence ...
A common form of exotropia is known as "convergence insufficiency" that responds well to orthoptic vision therapy including exercises. This disorder is characterized by an inability of the eyes to work together when used for near viewing, such as reading.
A brock string in use. A Brock string (named after Frederick W. Brock) is an instrument used in vision therapy. It consists of a white string of approximately 10 feet in length with three small wooden beads of different colors. The Brock string is commonly employed during treatment of convergence insufficiency and other anomalies of binocular ...
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.
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.
Accommodative infacility also known as accommodative inertia [1] is the inability to change the accommodation of the eye with enough speed and accuracy to achieve normal function. This can result in visual fatigue, headaches, and difficulty reading. [2] The delay in accurate accommodation also makes vision blurry for a moment when switching ...
Stereopsis recovery, also recovery from stereoblindness, is the phenomenon of a stereoblind person gaining partial or full ability of stereo vision ( stereopsis ). Recovering stereo vision as far as possible has long been established as an approach to the therapeutic treatment of stereoblind patients. Treatment aims to recover stereo vision in ...