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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. 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 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.
A spasm of accommodation (also known as a ciliary spasm, an accommodation, or accommodative spasm) is a condition in which the ciliary muscle of the eye remains in a constant state of contraction. Normal accommodation allows the eye to "accommodate" for near-vision. However, in a state of perpetual contraction, the ciliary muscle cannot relax ...
Progressive supranuclear palsy ( PSP) is a late-onset neurodegenerative disease involving the gradual deterioration and death of specific volumes of the brain. [2] [3] The condition leads to symptoms including loss of balance, slowing of movement, difficulty moving the eyes, and cognitive impairment. [2] PSP may be mistaken for other types of ...
Glasses, surgery [3] Frequency. ~2% (children) [3] Strabismus is a vision disorder in which the eyes do not properly align with each other when looking at an object. [2] The eye that is pointed at an object can alternate. [3] The condition may be present occasionally or constantly. [3]