Catalog

Tonic pupil

No MMS code

Link to WHO Definition

Tonic pupil – http://id.who.int/icd/entity/1199896541

This is a neurological disorder characterised by a tonically dilated pupil. It is caused by damage to the postganglionic fibres of the parasympathetic innervation of the eye, usually by a viral or bacterial infection which causes inflammation, and affects the pupil of the eye and the autonomic nervous system.