“…Host inflammatory reactions to dead O. volvulus larvae (microfilariae, MF) in the skin and eyes causes skin disease, Sowda or leopard skin, and visual impairment. In Africa, 500,000 cases of visual impairment, of which 270,000 cases resulted in blindness, are the direct result of O. volvulus, making onchocerciasis the second most frequent cause of preventable blindness in sub-Saharan Africa [3,4]. It should be noted that the cases of blindness reported here do not reflect the success of the vector control programme for onchocerciasis which concluded in 2002.…”