Anton–Babinski syndrome, also known as
visual anosognosia, is a rare symptom of
brain damage occurring in the
occipital lobe. Those who suffer from it are "
cortically blind", but affirm, often quite adamantly and in the face of clear evidence of their
blindness, that they are capable of seeing. Failing to accept being blind, the sufferer dismisses evidence of their condition and employs
confabulation to fill in the missing sensory input. It is named after
Gabriel Anton and
Joseph Babinski.