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Definition:-

Papillitis is acute inflammation of the optic disc.

Etiology:-

1. The Commonest cause for papillitis is demyelinating diseases ( like multiple sclerosis).
2. Infection ( primary as in poliovirus infection and TB or secondary as in meningitis , cellulitis , retinitis and uvitis).
3. Metabollic diseases ( DM and vit. B deficiency).
4. Antigen antibody reaction ( septic focus).

Clinical picture:-

A) symptoms:-

rapid marked drop of vision , up to hand movement.

B) signs:-

1. Central scotoma for green and red.
2. Pupil have reactive unsustained reaction.
3. Disc is elevated 3D and retina is less congested than papilledena.

Investigations:-

By VEP.

Fate:-

1. Spontaneous recovery occur in most of cases.
2. Recurrence after recovery is common.
3. Post papillitic optic atrophy.

Treatment:-

Treatment if the cause + systemic cortisone + vit. B complex.