What Adie Syndrome, Frey Syndrome, Horner's Syndrome and Shy-Drager Syndrome have in common?

I know they are neurological diseases but what parts of the Nervous System do they affect?

they affect the eye (optic nerve)
i forgot to add that they also involve sweating around the eye are face so this includes the facial nerve and other cranial nerves

and they are progressive nervous disorders so they gradulally get worse

They all suck

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What is Horner Syndrome and what are the major signs.?

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