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The first, published in Archives of Ophthalmology, demonstrated that computer exercises when combined with office/based vision therapy/orthoptics were more effective than "pencil pushups" or computer exercises alone for convergency insufficiency in nine- to eighteen-year-old children.
Orthoptic exercises have proven to be effective for reducing symptoms in patients with convergence insufficiency and decompensating exophoria by improving the near-point convergence of the eyes that is necessary for binocular fusion.
Some of the exercises use: [citation needed] Marsden balls; Rotation trainers; Syntonics; Balance board or beams; Saccadic fixators; Directional sequencers; Fusional amplitude and relative fusional amplitude training are designed to alleviate convergence insufficiency. The CITT study (Convergence Insufficiency Treatment Trial) was a randomized ...
For children, there is evidence that orthoptics is more effective at treating convergence insufficiency than home-based pencil or computer training; for adults the effectiveness is less evident. History. Orthoptics has a long history in supporting ophthalmic care.
Convergence insufficiency - usually associated with accommodative difficulties, the fusional convergence range of these patients is reduced. Divergence insufficiency- although rare and usually associated with a neurological condition, the PFR is able to detect a reduced divergence range.
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.
Convergence insufficiency. Accommodative insufficiency ( AI ) involves the inability of the eye to focus properly on an object. Accommodation is the adjustment of the curvature of the lens to focus on objects near and far.
Convergence insufficiency – near exodeviation greater than distance deviation. These can be due to nerve, muscle, or congenital problems, or due to mechanical anomalies. Unlike exotropia, fusion is possible in this condition, causing diplopia to be uncommon.
Convergence excess; Divergence insufficiency; Fusional vergence dysfunction (reduced positive and negative fusional vergence, with normal or near-normal phoria) Heterophoria; Vergence control, and over-convergence associated with the extra accommodation required to overcome a hyperopic refractive error, play a role in the onset of accommodative ...
Vectograph. A vectograph is a type of stereoscopic print or transparency viewed by using the polarized 3D glasses most commonly associated with projected 3D motion pictures. Credit for the concept of the vectograph is due to Joseph Mahler, cousin of composer and conductor Gustav Mahler. He immigrated to the US from Czechoslovakia in 1938 and ...