OnchocerciasisOnchocerciasis, OcularOnchocerca volvulusOnchocercaIvermectinBlindnessRiversSimuliidaeFilaricidesAntiparasitic AgentsKeratitisFilarioideaWolbachiaMicrofilariaNight BlindnessAnthelminticsBrugia malayiBlindness, CorticalSkin Diseases, ParasiticCorneaMansonelliasisAfrica, WesternAntinematodal AgentsDiethylcarbamazineLoiasisLoaEye DiseasesAntigens, HelminthCameroonLiberiaGuineaAntibodies, HelminthRoss River virusChorioretinitisOptic AtrophyEndemic DiseasesNigeriaVision, LowInsect ControlTogoSierra LeoneCentral African RepublicNeglected DiseasesEcuadorTrachomaElephantiasis, FilarialCataractInsect VectorsVision DisordersPrevalenceAfricaParasite LoadVisually Impaired PersonsMebendazoleDisease EradicationVisual AcuityMaliTropical MedicineGhanaGlaucomaCorneal OpacityFresh WaterGift GivingFilariasisDipetalonemaSudanXerophthalmiaMansonellaSchistosomiasisDNA, HelminthEye Diseases, HereditaryDiptera