How were the maya organized politically?

Well I assume that they had king in their uppermost class, than high priests and then craftsmen, after that farmers. Finally slaves and POWs

Wet seasonal wind patterns that cause wet and dry seasons.

True blindness may be caused by trauma to the eye, severe conjunctivitis due to  ibr (infectious bovine rhinoceros) or pink eye or other infections, leptospirosis, lead poisoning, selenium toxicity, fungal infections, vitamin a  deficiencies, rabies, vitamin b12 deficiency, neoplastic of the orbit or  conjunctiva, cataracts, congenital malformations, etc.