This is a condition when patient is blind and does not detect a stationary image, but is able to detect the outline of a moving object. It is also called statokinetic dissociation, meaning dissociation of stationary and moving image perception. Sometimes it is also called blindsight, meaning ability to see something in motion but otherwise blind.

Where is the problem in Riddoch Syndrome?

It happens from injury or malfunction of a particular area in the back of brain, the medial occipital lobe. Functional MRI studies have suggested a particular area in the back of brain named V5, which is involved in motion detection. In patients with Riddoch Syndrome, patient has brain damage to cause blindness but some pathways remain intact to carry messages to V5 resulting in preservation of motion.

What may be the cause of Riddoch Syndrome?

Cause of injury to the brain can be shrapnel or other type of trauma, stroke, or tumor.

What is the treatment for Riddoch Syndrome?

No specific treatment for this type of blindness is known, other than treatment of the cause.

Where can I get more information about Riddoch Syndrome?

American Academy of Neurology