Itara ry'ubururu ni iki kandi ni ukubera iki wagura ubururu bwumucyo ubururu？

Itara ry'ubururu ni urumuri rugaragara rugaragara hamwe nuburebure buke bwumurongo ningufu zisumba izindi, kandi bisa nimirasire ya ultraviolet, urumuri rwubururu rufite inyungu ningaruka.

Muri rusange, abahanga bavuga ko urumuri rugaragara rugizwe nimirasire ya electromagnetique ifite uburebure bwa metero 380 (nm) kumpera yubururu bwikigereranyo kugeza kuri 700 nm kumpera yumutuku.(By the way, nanometero ni miliyari imwe ya metero - iyo ni 0.000000001!)

Itara ry'ubururu muri rusange risobanurwa nk'urumuri rugaragara ruri hagati ya 380 na 500 nm.Itara ry'ubururu rimwe na rimwe ryongeye gucikamo urumuri rw'ubururu (hafi 380 kugeza 450 nm) n'umucyo w'ubururu-turquoise (hafi 450 kugeza 500 nm).

Rero, hafi kimwe cya gatatu cyumucyo ugaragara ufatwa nkingufu nyinshi zigaragara (HEV) cyangwa "ubururu".

Hano haribimenyetso urumuri rwubururu rushobora kuganisha kumahinduka ahoraho.Amatara yubururu hafi ya yose anyura inyuma yinyuma ya retina.Ubushakashatsi bumwe bwerekanye ko urumuri rwubururu rushobora kongera ibyago byo kwangirika kwa macula, indwara ya retina.

Ubushakashatsi bwerekana urumuri rwubururu rushobora kuganisha kumyaka ihindagurika, cyangwa AMD.Ubushakashatsi bumwe bwerekanye ko urumuri rwubururu rwatumye irekurwa rya molekile zifite ubumara muri selile zifotora.Ibi bitera ibyangiritse bishobora kuganisha kuri AMD.

Imyaka itari mike ishize, twateje imbere igisekuru cya mbere cyaurumuri rwubururu rufunga lens.Hamwe no guhanga udushya mugihe cyashize, iwacuubururu bwo guhagarikazitezimbere nkibisanzwe kugirango bitagaragara.

Iwacublue kumurikalensmuyungurura ibuza cyangwa ikurura urumuri rwubururu.Ibyo bivuze niba ukoreshaibilensesiyo urebye kuri ecran, cyane cyane nyuma yumwijima, zirashobora gufasha kugabanya guhura nubururu bwurumuri rwubururu bushobora gutuma udakomeza kuba maso kandi bikanafasha kugabanya uburibwe bwamaso.Nyamara, abantu bamwe bavuga ko urumuri rwubururu ruva mubikoresho bya digitale ntabwo bitera amaso.Ibibazo abantu binubira biterwa gusa no gukoresha ibikoresho bya digitale.