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Some cases of convergence insufficiency are successfully managed by prescription of eyeglasses, sometimes with therapeutic prisms. Pencil push-ups therapy is performed at home. The patient brings a pencil slowly to within 2–3 cm (0.79–1.18 in) of the eye just above the nose about fifteen minutes per day five times per week.
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.
Divergence excess - exodeviation is more than 15 dioptres greater for distance than near deviation. Convergence insufficiency – near exodeviation greater than distance deviation. These can be due to nerve, muscle, or congenital problems, or due to mechanical anomalies.
Although glasses and/or patching therapy, exercises, or prisms may reduce or help control the outward-turning eye in some children, surgery is often required. A common form of exotropia is known as " convergence insufficiency " that responds well to orthoptic vision therapy including exercises.
He found that there are a few areas where the available evidence suggest that the approach might have some value, namely in the treatment of convergence insufficiency, the use of yoked prisms in neurological patients, and in vision rehabilitation after brain disease or injury—but he found that in the other areas where the techniques have been ...
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.
Accommodative convergence. Accommodative convergence is that portion of the range of inward rotation of both eyes (i.e., convergence) that occurs in response to an increase in optical power for focusing by the crystalline lens (i.e., accommodation ). [1] When the human eye engages the accommodation system to focus on a near object, signal is ...
Accommodative insufficiency. 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.
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.
Orthoptists are trained professionals who specialize in orthoptic treatment, such as eye patches, eye exercises, prisms or glasses. They commonly work with paediatric patients and also adult patients with neurological conditions such as stroke, brain tumours or multiple sclerosis.
