Ariko uretse kuba lenzi ifite imiterere myinshi idafite imirongo igaragara, lenzi zigenda ziyongera zituma abantu bafite uburwayi bwa presbyopia bongera kubona neza intera iyo ari yo yose.
Ibyiza byo gukoresha lense zigenda zirushaho kwiyongera kurusha bifocals
Indorerwamo z'indorerwamo z'ibirahuri bifite imbaraga ebyiri gusa: imwe yo kureba hirya no hino mu cyumba n'indi yo kureba hafi. Ibintu biri hagati, nka ecran ya mudasobwa cyangwa ibintu biri ku iduka ry'ibiribwa, akenshi biguma bitagaragara neza bitewe n'indorerwamo z'ibirahuri.
Kugira ngo abambara amabara abiri (bifocal) bagerageze kubona neza ibintu biri kuri uru "rubyiniro rwo hagati", bagomba kunama imitwe yabo hejuru no hasi, bareba hejuru hanyuma hepfo y’amabara abiri (bifocals), kugira ngo bamenye igice cy’ikirahure gikora neza kurushaho.
Indorerwamo zigenda zigana cyane uko wabonaga mbere yuko presbyopia itangira. Aho gutanga imbaraga ebyiri gusa za lens nka bifocals (cyangwa eshatu, nka trifocals), lens zigenda ziyongera ni "multifocal" nyazo zitanga intambwe nziza kandi ihamye y'imbaraga nyinshi za lens kugira ngo umuntu abone neza mu cyumba cyose, hafi kandi mu ntera zose hagati.
Kureba karemano nta "gusimbuka kw'ishusho"
Imirongo igaragara muri bifocal na trifocal ni ahantu hagaragara mu buryo butunguranye. Nanone, kubera umubare muto w'imbaraga za lens muri bifocal na trifocal, ubwinshi bw'ibyibandwaho byawe kuri izi lens ni buke. Kugira ngo bigaragare neza, ibintu bigomba kuba biri mu ntera runaka. Ibintu biri hanze y'intera bitwikiriwe n'imbaraga za bifocal cyangwa trifocal bizahinduka kandi imbaraga za lens zihinduke.
Ku rundi ruhande, lense zigenda zirushaho kuba nziza kandi zitagira imipaka, zifite ubushobozi bwo kureba neza mu ntera zose. Lense zigenda zirushaho kuba nziza kandi zitanga ubushobozi bwo kureba neza mu buryo busanzwe, nta "gusimbuka kw'ishusho".
Imbaraga z'ama-lenses agenda ahinduka buhoro buhoro kuva ku gice kimwe kugeza ku kindi ku buso bwa lenses, bitanga imbaraga zikwiye zo kubona ibintu neza hafi ya kure iyo ari yo yose.
Itanga ubushobozi bwo kureba neza intera iyo ari yo yose (aho kureba intera ebyiri cyangwa eshatu zitandukanye).
Kugira ngo ubone neza, ugire ihumure kandi usa neza, ushobora guhitamo inzira nini zoroshye kandi zihuse zo guhindura ibintu kurusha lenzi y’igihe gishize. Ushobora kwinjira mu ipajihttps://www.universeoptical.com/wideview-product/kugira ngo urebe byinshi ku bijyanye n'imiterere yacu mishya igezweho.