what river blindness? Like time blindness? Or a blind leading another blind both wind up in river?
Intense itching
Skin rashes leading to open sores
Skin discoloration
Nodules under the skin as the adult worms grow.
Lymph node swelling
Hanging groin
Eye Redness and pain
Cloudy cornea
Inflammation when the parasites cause inflammation inside the eye
Secondary cataracts
Vision loss and and ultimately, permanent blindness.