Hi I am Dr. Trace and I will attempt to answer your question.
After a search of the literature, I have found very little to show a relationship between psittacosis and macular degeneration.
Certain bird born diseases like histoplasmosis, can present a retinal picture similar to macular degeneration, but psittacosis does not seem to create this same pathology.
In terms of the neuropathy, yes, psittacosis can cause an encephalitis which may have symptoms of neuropathy as sequelae. I hope this answers your question.
Let me know if I can be of any further help.