Onchocerciasis, OcularOnchocerca volvulusRiversBlindnessOnchocerciasisOnchocercaIvermectinFilaricidesKeratitisSimuliidaeFilarioideaAnthelminticsWolbachiaNight BlindnessBrugia malayiAntiparasitic AgentsScabiesAntinematodal AgentsBlindness, CorticalCorneaSkin Diseases, ParasiticMicrofilariaRoss River virusLoiasisStrongyloideaVision, LowAlbendazoleLoaReceptors, Purinergic P2X4StrongyloidiasisCataractSarcoptes scabieiDiethylcarbamazineMite InfestationsPediculusStrongyle Infections, EquineVisually Impaired PersonsElephantiasis, FilarialWuchereria bancroftiFresh WaterStrongyloides stercoralisCameroonLice InfestationsNigeriaPermethrinInsecticidesEye DiseasesXerophthalmiaTrachomaEye Diseases, HereditaryHydroxyzineVisual AcuityScalp DermatosesHelminthiasis, AnimalWater MovementsWater Pollutants, ChemicalPrevalenceEndemic DiseasesAcaricidesParasite LoadVision DisordersGlaucomaAscaridoideaCataract ExtractionHaemonchusParasite Egg CountRefractive ErrorsSierra LeoneFenbendazoleInsect ControlCladoceraMyiasisFilariasisWater PollutionEye Infections, ParasiticSpirurida InfectionsOxyuroideaVitamin A DeficiencyEye InjuriesElectroretinographyOxyuriasisMacular DegenerationAscaridida InfectionsEctoparasitic InfestationsSeasons