“…Ocular lesions in river blindness are not specific including corneal scars, uveitis, cataract and chorioretinitis. Differential diagnosis of ocular onchocerciasis chorioretinitis [56][57][58][59][60][61][62] include toxoplasmosis, sarcoidosis, tuberculosis, larva migrans, syphilis, diffuse unilateral subacute neuroretinitis (DUSN) from various nematodes (Toxocara canis, Ancylostoma caninum, Strongyloides stercoralis, Ascaris lumbricoides, and Baylisascaris procyonis), schistosomiasis [57], cestodes [58], and other microfilaria (including Marsonella perstans, Loa loa, Onchocerca gutturosa, or Dracunculus medinensis). Oculocutaneous tropical disease differential includes tuberculosis, leprosy, Chagas disease (also known as American trypanosomiasis), sporotrichosis (also known as "rose gardener's disease") [59], coccidioidomycosis (also known as San Joaquin Valley fever) [60], leishmaniasis [56], giardiasis [56] and infection by other microfilaria (Onchocerca gutturosa, Loa loa, Dracunculus medinensis, Marsonella perstans).…”