Ibikoresho bitari ibyuma mubikoresho bya gaze ni ibintu bisanzwe byoroshye, kandi imiterere yabyo irazenguruka cyane.Biragoye guca intoki, kandi ibisohoka ni bike.Kunoza umusaruro nubuziranenge, ni ngombwa kumenyekanisha ibikoresho byikora byikora.