Neurology — Flashcards

Flashcard 301: A lesion of the **right optic tract** results in what visual field defect? Answer: _____

Answer: Left contralateral homonymous hemianopia

Flashcard 302: Visual images perceived in the temporal hemifield will stimulate cells on the _____ half of the ipsilateral retina (and vice versa)

Answer: nasal

Flashcard 303: The visual fields are subdivided into _____ & temporal hemifields

Answer: nasal

Flashcard 304: What visual field defect results from a lesion of the optic chiasm (e.g. pituitary adenoma, craniopharyngioma)? _____

Answer: Bitemporal hemianopia

Flashcard 305: Visual images perceived in the nasal hemifield will stimulate cells on the _____ half of the ipsilateral retina (and vice versa)

Answer: temporal

Flashcard 306: What visual field defect results from a lesion of the parietal lobe (e.g. MCA infarct)? _____

Answer: Contralateral homonymous inferior quadrantanopia

Flashcard 307: Monocular anopia is a visual field defect associated with a complete lesion to the _____

Answer: optic nerve

Flashcard 308: Bitemporal hemianopia is a visual field defect associated with a lesion to the _____

Answer: optic chiasm

Flashcard 309: A right parietal lobe lesion results in _____

Answer: left homonymous inferior quadrantanopia

Extra: Mnemonic: P-I-G (Parietal - Inferior - Gyrus/Loop) or 'Pie on the floor'. Temporal lobe lesions involve Meyer's loop and cause superior quadrantanopia ('Pie in the sky').

Flashcard 310: Contralateral homonymous inferior quadrantanopia is a visual field defect associated with a lesion to the _____ lobe

Answer: parietal