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Optic nerve. Dr.NupurDr.Shruti. LAQs. OPTIC NEURITIS. OPTIC NEURITIS. DEFINITION AND CLASSIFICATION DEFINITION AND CLASSIFICATION ETIOLOGY ETIOLOGY SIGNS.

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Presentation on theme: "Optic nerve. Dr.NupurDr.Shruti. LAQs. OPTIC NEURITIS. OPTIC NEURITIS. DEFINITION AND CLASSIFICATION DEFINITION AND CLASSIFICATION ETIOLOGY ETIOLOGY SIGNS."— Presentation transcript:

1 Optic nerve. Dr.NupurDr.Shruti

2 LAQs. OPTIC NEURITIS. OPTIC NEURITIS. DEFINITION AND CLASSIFICATION DEFINITION AND CLASSIFICATION ETIOLOGY ETIOLOGY SIGNS AND SYMPTOMS. SIGNS AND SYMPTOMS. TREATMENT. TREATMENT. OPTIC ATROPHY. OPTIC ATROPHY. DEFINITION DEFINITION CLASSIFICATION CLASSIFICATION INVESTIGATIONS AND TREATMENT. INVESTIGATIONS AND TREATMENT.

3 SAQs Papilloedema Papilloedema Toxic amblyopia. Toxic amblyopia. Acute retrobulbar neuritis. Acute retrobulbar neuritis. Amblyopia. Amblyopia. Anterior ischaemic optic neuropathy. Anterior ischaemic optic neuropathy.

4 MCQs Distance between optic nerve head n macula is; Distance between optic nerve head n macula is; Disc diameter(dd) Disc diameter(dd) 2DD 2DD 3DD 3DD 4DD 4DD Optic nerve carries axons of neurons of Optic nerve carries axons of neurons of Fourth order Fourth order First order First order Third order Third order Second order Second order

5 Foster keneddy syndrome is due to tumours of; Foster keneddy syndrome is due to tumours of; Pontine Pontine Midbrain Midbrain Cerebellar Cerebellar Orbital surface of frontal lobe. Orbital surface of frontal lobe. Macular fan is seen in Macular fan is seen in Oedema of optic nerve Oedema of optic nerve Atrophy of the nerve Atrophy of the nerve Macular degeneration Macular degeneration None None

6 Swelling of disc in pappilitis rarely exceeds; Swelling of disc in pappilitis rarely exceeds; 1-2 dd 1-2 dd 4-6dd 4-6dd 2-3dd 2-3dd 3-5dd 3-5dd Vitreous opacities are seen in Vitreous opacities are seen in Papilloedema Papilloedema Acute retrobulbar neuritis Acute retrobulbar neuritis Papilitis Papilitis none none


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