A condition where someone has difficulty recognizing or understanding written or printed words despite having normal vision.
From Greek dys- (bad) + ana- (back/again) + gnosis (knowledge), literally meaning 'bad knowledge recognition,' a neurological term developed in the late 1800s.
This is different from dyslexia because the person's eyes work fine—it's their brain that struggles to recognize word patterns, which is why it's found more in people who've had brain injuries than in people with reading disorders.
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