<unk> s (AR<unk> s) are bilateral small<unk> s 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,<unk> s may also be a sign of diabetic neuropathy. In general,<unk> s 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). AR<unk> s are extremely uncommon in the developed world. There is continued interest in the underlying pathophysiology, but the scarcity of cases makes ongoing research difficult.
Argyll Robertson pupil
Hutchinson's pupil
Blue field entoptic phenomenon
Persistent pupillary membrane
Periorbital dark circles
Emmasofia
Bruns nystagmus
Lipoatrophia semicircularis