Indorerwamo za spectacle zikosora amakosa yo kugarura urumuri binyuze mu kuzunguruka (gusubiza urumuri) mu gihe runyura muri iyo ngero. Ingano y'ubushobozi bwo kuzunguruka urumuri (imbaraga za lens) ikenewe kugira ngo ubone neza igaragazwa n'umuganga w'amaso wawe.
Amakosa yo gusubira inyuma n'imbaraga z'indorerwamo zisabwa kugira ngo zikosorwe bipimwa mu bice byitwa dioptres (D). Niba utareba kure gato, imiti ya lens yawe ishobora kuvuga -2.00 D. Niba ufite ikibazo cyo mu mutwe cyane, ishobora kuvuga -8.00 D.
Niba ufite ubushobozi bwo kureba kure, ukeneye "plus" (+), indorerwamo ziba nini hagati kandi zoroshye ku nkengero.
Indorerwamo zisanzwe z'ibirahure cyangwa za pulasitiki zifasha umuntu kutareba kure cyangwa kureba kure zishobora kuba nini kandi ziremereye.
Ku bw'amahirwe, abakora indorerwamo bakoze ubwoko butandukanye bw'ibikoresho bishya bya pulasitiki "bifite icyitegererezo kinini" bihindura urumuri neza kurushaho.
Ibi bivuze ko ibikoresho bike bishobora gukoreshwa muri lens ifite index nyinshi kugira ngo hakosorwe amakosa angana yo kugarura urumuri, ibyo bigatuma lens zifite index nini ziba nto kandi zoroshye kurusha lens zisanzwe z’ibirahure cyangwa za pulasitiki.
Ibyiza byo gukoresha lenseri zifite index nini
Yoroshye cyane
Kubera ubushobozi bwazo bwo gupfunyika urumuri neza, lenseri zifite imiterere miremire yo kutareba kure zifite impande ntoya kurusha lenseri zifite imbaraga zimwe na zimwe zikozwe mu bikoresho bisanzwe bya pulasitiki.
Icyuma cyoroshye
Impande zoroshye zikenera ibikoresho bike byo kwerekana lens, ibyo bigatuma uburemere rusange bw'amalens bugabanuka. Amalens akozwe muri pulasitiki ifite index nini ni yoroshye kurusha amalens amwe akozwe muri pulasitiki isanzwe, bityo bikaba byoroshye kwambara.
Kandi indorerwamo nyinshi zifite imiterere idasanzwe (high-index lenses) nazo zifite imiterere idasanzwe, ituma ziba zoroshye kandi zinogeye ijisho, kandi zikagabanya isura nziza nk'iyo indorerwamo zisanzwe zitera mu gihe zihabwa imiti ivura kure.
Amahitamo y'indorerwamo zifite ubuziranenge buhanitse
Indorerwamo za pulasitiki zifite index nini ubu ziraboneka mu byiciro byinshi bitandukanye by’indorerwamo, ubusanzwe kuva kuri 1.60 kugeza kuri 1.74. Indorerwamo zifite index ya refractive ya 1.60 na 1.67 zishobora kuba zoroshye nibura 20% ugereranyije n’indorerwamo za pulasitiki zisanzwe, naho 1.71 cyangwa irenga ubusanzwe zishobora kuba zoroshye hafi 50%.
Nanone, muri rusange, uko index iba nini, niko lenses zihenda cyane.
Ikarita yawe y'indorerwamo igena ubwoko bw'ibikoresho bifite index nini ushobora gushaka kuri lens yawe. Ibikoresho bifite index nini cyane bikoreshwa cyane cyane mu gutanga imiti ikomeye.
Imiterere myinshi y'amalenzi akunzwe cyane muri iki gihe n'ibintu bigezweho — birimo Dual Aspheric, Progressive, Bluecut Pro, Prescription tinted, na Spin-coating photochromic lenses zigezweho — biraboneka mu bikoresho bifite index yo hejuru. Murakaza neza gukanda ku mapaji yacu kurihttps://www.universeoptical.com/armor-revolution-product/kugira ngo urebe byinshi birambuye.