Infection with nematodes of the genus ONCHOCERCA. Characteristics include the presence of firm subcutaneous nodules filled with adult worms, PRURITUS, and ocular lesions.
Onchocerciases
D005128
Eye Diseases
Diseases affecting the eye.
Eye Disorders,Eye Disease,Eye Disorder
D006801
Humans
Members of the species Homo sapiens.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015827
Onchocerciasis, Ocular
Filarial infection of the eyes transmitted from person to person by bites of Onchocerca volvulus-infected black flies. The microfilariae of Onchocerca are thus deposited beneath the skin. They migrate through various tissues including the eye. Those persons infected have impaired vision and up to 20% are blind. The incidence of eye lesions has been reported to be as high as 30% in Central America and parts of Africa.
River Blindness,Blindness, River,Ocular Onchocerciases,Ocular Onchocerciasis,Onchocerciases, Ocular
D044383
Black People
Persons having origins in any of the black racial groups of AFRICA. Note that OMB category BLACK OR AFRICAN AMERICAN is available for the United States population groups. Race and ethnicity terms, as used in the federal government, are self-identified social construct and may include terms outdated and offensive in MeSH to assist users who are interested in retrieving comprehensive search results for studies such as in longitudinal studies.