For example, the patient would be asked the following:
"How many fingers am I holding up?" "What does that sign (on a custodians closet, a restroom door, an exit sign) say?" "What kind of vending machine (with a vivid picture of a well-known brand name on it) is that? "Patients with cortical blindness will not be able to identify the item being questioned about at all or will not be able to provide any details other than color or perhaps general shape. This indicates that the lack of vision is neurological rather than ocular. It specifically indicates that the occipital cortex is unable to correctly process and interpret the intact input coming from the retinas. Fundoscopy should be normal in cases of cortical blindness. Cortical blindness can be associated with visual hallucinations, denial of visual loss (Anton–Babinski syndrome), and the ability to perceive moving but not static objects. (Riddoch syndrome). Outcome
The prognosis of a patient with acquired cortical blindness depends largely on the original cause of the blindness. For instance, patients with bilateral occipital lesions have a much lower chance of recovering vision than patients who suffered a transient ischemic attack or women who experienced complications associated with eclampsia. In patients with acquired cortical blindness, a permanent complete loss of vision is rare. The development of cortical blindness into the milder cortical visual impairment is a more likely outcome. Furthermore, some patients regain vision completely, as is the case with transient cortical blindness associated with eclampsia and the side effects of certain anti-epilepsy drugs.
Recent research by Krystel R. Huxlin and others on the relearning of complex visual motion following V1 damage has offered potentially promising treatments for individuals with acquired cortical blindness. These treatments focus on retraining and retuning certain intact pathways of the visual cortex which are more or less preserved in individuals who sustained damage to V1. Huxlin and others found that specific training focused on utilizing the "blind field" of individuals who had sustained V1 damage improved the patients ability to perceive simple and complex visual motion. This sort of relearning therapy may provide a good workaround for patients with acquired cortical blindness in order to better make sense of the visual environment. See also
Blindsight

References
Further reading
Books
Vighetto, A., & Krolak-Salmon, P. (2007). Cortical blindness. New York, NY: Cambridge University Press. Papers
Balliet, R., Blood, K. M., & Bach-y-Rita, P. (1985). Visual field rehabilitation in the cortically blind? : Journal of Neurology, Neurosurgery & Psychiatry Vol 48(11) Nov 1985, 1113-1124. Trevethan, C. T., & Sahraie, A. (2003). Spatial and temporal processing in a subject with cortical blindness following occipital surgery: Neuropsychologia Vol 41(10) 2003, 1296-1306. == External links ==