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Internuclear ophthalmoplegia
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Horizontal gaze centers
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Diplopia midbrain Infarction Hemorrhage Neoplasm Demylination
Subarachnoid portion Infarction Hemorrhage Neoplasm Demylination Aneurysm Infectious meningitis Meningeal infiltration granulomatous inflammation Rise intracranial pressure (VI) Trauma (IV) Cerebello-pontine angle tumour 3
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Diplopia Cavernous sinus Orbit Vascular Infection Tumor Granuloma
Aneurysm Carotid artery- cavernous sinus fistula Cavernous sinus thrombosis Ischemia from microvascular disease in vasa nervosa Inflammatory Vascular Infection Tumor Granuloma Trauma 4
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Investigations
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Investigations
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Ptosis
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Ptosis Partial Complete
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Ptosis Muscle disease Myasthenia Gravis
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Horner's syndrome
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Pupil disorders Dilated III lesion Trauma Anticholinergi cs &
Sympathmime tics intoxication Ethanol & sedative withdrawal
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Pupil disorders Cosntrection Opioid intoxication
Argyll Robertson pupil Holmes Adie pupil Horner's syndrome
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Pathway for pupillary dilatation (sympathetic)
hypothalamus brain stem cervical spinal cord C8, T1 sympathetic chain superior cervical ganglion internal carotid artery ciliary ganglion dilator pupillae in the iris
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A lesion anywhere along its path results in
Horner’s syndrome A lesion anywhere along its path results in Miosis Ptosis enopthalmos anhydrosis.
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