Pupils are the dark-colored openings at the center of your eyes that let light in. Doctors can look at your pupils for clues about your health. The size of your pupils and how they react to light ...

Patients had eye ... all had pupil abnormalities and a severe neuropathy with autonomic features. There were cases of HSAN-I, HSAN-II, and FAP with moderate autonomic neuropathy but no pupil ...