CN III, IV & VI Palsy Explained Eye Movements Decoded 👁️ Can you localize the lesion just by eye movements? This reel shows a real patient with 3rd, 4th & 6th cranial nerve palsy alongside simplified neuro-anatomy diagrams to make eye movement localization easy & clinical. 🔑 Quick Pearls: • CN III palsy → Ptosis, down & out eye ± dilated pupil • CN IV palsy → Vertical diplopia, worse on stairs • CN VI palsy → Failure of abduction • Saccades = Frontal lobe • Pursuit = Occipital lobe • Vestibulo
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CN III, IV & VI Palsy Explained Eye Movements Decoded 👁️ Can you localize the lesion just by eye movements? This reel shows a real patient with 3rd, 4th & 6th cranial nerve palsy alongside simplified neuro-anatomy diagrams to make eye movement localization easy & clinical. 🔑 Quick Pearls: • CN III palsy → Ptosis, down & out eye ± dilated pupil • CN IV palsy → Vertical diplopia, worse on stairs • CN VI palsy → Failure of abduction • Saccades = Frontal lobe • Pursuit = Occipital lobe • Vestibulo
43.5K views3 months ago
FacebookAdeel Ur Rehman
Lateral Rectus Palsy (Abducens Nerve Palsy – CN VI) Lateral rectus palsy occurs due to dysfunction of the abducens nerve (6th cranial nerve), which innervates the lateral rectus muscle responsible for abduction of the eye (moving the eye outward). 🔍 Anatomy & Function Muscle affected: Lateral rectus Nerve: Abducens nerve (CN VI) Normal action: Abducts the eyeball (moves it laterally) ⚠️ Causes Raised intracranial pressure (most common) Diabetes mellitus / hypertension (microvascular ischemia) H
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Lateral Rectus Palsy (Abducens Nerve Palsy – CN VI) Lateral rectus palsy occurs due to dysfunction of the abducens nerve (6th cranial nerve), which innervates the lateral rectus muscle responsible for abduction of the eye (moving the eye outward). 🔍 Anatomy & Function Muscle affected: Lateral rectus Nerve: Abducens nerve (CN VI) Normal action: Abducts the eyeball (moves it laterally) ⚠️ Causes Raised intracranial pressure (most common) Diabetes mellitus / hypertension (microvascular ischemia) H
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FacebookKuldeep Jangra
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