Noun
infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America
Source: WordNetMore than 99% of people affected by the illness worldwide live in 31 countries therein. citation In response, the African Programme for Onchocerciasis Control (APOC) was launched in 1995 with the aim of controlling the disease. Source: Internet