What causes ocular motility disorders?

In adults, it may be caused by any of the following: Damage to brain tissue from stroke, trauma or infection. Certain drugs, such as the drug used to control seizures, phentoin. Excess alcohol intake.

What is the abnormal retinal correspondence?

Background: Anomalous retinal correspondence (ARC) is a neural adaptation to eye misalignment in which non-corresponding retinal points are linked in the visual cortex to provide binocular fusion.

What does ocular motility assess?

EOM; Extraocular movement; Ocular motility examination. Extraocular muscle function testing examines the function of the eye muscles. A health care provider observes the movement of the eyes in eight specific directions. The eye is the organ of sight, a nearly spherical hollow globe filled with fluids (humors).

How is abnormal retinal correspondence treated?

Treatment for Anomalous Retinal Correspondence It corrects certain eye alignment and other binocular vision problems. Vision therapy includes specific eye exercises paired with special lenses, prisms or eye patches to help improve poor visual skills and binocular vision problems.

How do you treat anomalous correspondence?

In ARC, because the extra-foveal corresponding point is in the peripheral retina, there is suppression between the periphery and the fovea. One treatment modality is to change this sensory pattern through occlusion of the preferred eye to usage of the deviating eye.

What is SMP in binocular vision?

Binocular Single Vision may be defined as the state of simultaneous vision, which is achieved by the coordinated use of both eyes, so that separate and slightly dissimilar images arising in each eye are appreciated as a single image by the process of fusion.

Why do we test ocular motility?

We check ocular motility to determine if there is an underlying medical condition which needs treatment.

What is a normal result for convergence testing?

Results. The normal near point of convergence (NPC) is about 6-10 centimeters and the convergence recovery point (CRP) is 15 centimeters. If the NPC is more than 10 centimeters, this is a sign of poor convergence.