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Argyll Robertson pupil
Medical condition / From Wikipedia, the free encyclopedia
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Argyll Robertson pupils (AR pupils) are bilateral small pupils that reduce in size on a near object (i.e., they accommodate), but do not constrict when exposed to bright light (i.e., they do not react). They are a highly specific sign of neurosyphilis; however, Argyll Robertson pupils may also be a sign of diabetic neuropathy. In general, pupils that accommodate but do not react are said to show light-near dissociation (i.e., it is the absence of a miotic reaction to light, both direct and consensual, with the preservation of a miotic reaction to near stimulus (accommodation/convergence).[1]
This article needs additional citations for verification. (October 2016) |
Argyll Robertson pupil | |
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Specialty | Neurology ![]() |
Risk factors | A highly specific sign of neurosyphilis |
Diagnostic method | Pupillary light reflex and accommodation reflex tests |
AR pupils are extremely uncommon in the developed world. There is continued interest in the underlying pathophysiology, but the scarcity of cases makes ongoing research difficult.