Cortical blindness
2894072
198784081
2008-03-17T03:49:21Z
Twaz
6647303
Reverted 1 edit by [[Special:Contributions/69.105.171.232|69.105.171.232]] to last version by DumZiBoT
{{Infobox_Disease |
Name = Cortical blindness |
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ICD10 = |
ICD9 = {{ICD9|377.75}} |
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MeshID = D019575 |
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'''Cortical blindness''' is the total or partial loss of vision in a normal-appearing [[eye]] caused by damage to the visual area in the [[brain]]'s [[occipital cortex]].<ref>[http://www.triadpublishing.com/eyedictionary.shtml Dictionary of Eye Terminology<!-- Bot generated title -->]</ref>
==Causes==
Bilateral lesions of the primary [[visual cortex]] may cause cortical blindness.
Side effect of anti-epilepsy drugs ([[Anticonvulsant|AED]]s) over time.
The [[posterior cerebral artery]] supplies the [[occipital lobe]], and can be associated with cortical blindness.
==Presentation==
Patients have no [[visual perception|vision]] but the response of the [[pupil]] to light is intact (as the [[reflex]] does not involve the [[Cerebral cortex|cortex]]).
[[Fundoscopy]] is normal. Cortical blindness can be associated with visual [[hallucinations]], denial of visual loss ([[Anton syndrome]]), and the ability to perceive moving but not static objects. ([[Riddoch phenomenon]]).
==References==
<references/>
[[Category:Blindness]]
{{eye-stub}}
[[it:Cecità corticale]]