MIOSIS

Horner's syndrome [various causes, commonest = Pancoast tumour]

iritis [+ signs of iritis]

keratitis

Argyll-Robertson pupil [small irregular pupil that reacts to accommodation but not to light; typical of neurosyphilis; usually bilateral]

pontine haemorrhage [unconscious patient with periodic respiration, � hyperpyrexia, bilateral pyramidal tract and cranial nerve signs]

congenital

drugs:

opiates

cholinesterase inhibitors

parasympathomimetics, eg. pilocarpine (topical)

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