Lens
Amaso yose akeneye kurindwa imirasire yizuba.Imirase iteje akaga cyane yitwa ultra violet (UV) kandi yacitsemo ibice bitatu.Uburebure buke cyane, UVC bwinjizwa mu kirere kandi ntibigere bigera ku isi.Urwego rwo hagati (290-315nm), ingufu nyinshi imirasire ya UVB itwika uruhu rwawe kandi igakirwa na cornea yawe, idirishya risobanutse imbere yijisho ryawe.Intara ndende (315-380nm) yitwa imirasire ya UVA, unyuze imbere yijisho ryawe.Uku guhura kwagiye guhuzwa no gukora cataracte kuko urumuri rwinjizwa na lens ya kristaline.Iyo cataracte imaze gukurwaho retina yunvikana cyane ihura niyi mirase yangiza.None rero ukeneye izuba ryizuba kugirango turinde amaso yacu.
Ubushakashatsi bwerekana ko igihe kirekire, kidakingiwe imishwarara ya UVA na UVB gishobora kugira uruhare mu iterambere ry’amaso akomeye
imiterere nka cataracte na macula degeneration.Icyuma cyizuba gifasha kurinda izuba izuba hafi yijisho rishobora gutera kanseri y'uruhu, cataracte hamwe nimpu.Izuba ryizuba naryo ryerekanwe kurinda umutekano muke wo gutwara no gutanga ibyiza muri rusange
ubuzima bwiza na UV kurinda amaso yawe hanze.
Igihe cyo kohereza: Gicurasi-06-2023