Indwara ya presbyopiya izagenda igaragara buhoro buhoro nyuma yimyaka 40, ariko mumyaka yashize, kubera ingeso mbi zamaso yabantu ba kijyambere, abantu benshi kandi benshi barwaye presbyopia babitangaje mbere.Kubwibyo, ibisabwaibice bibirinagutera imberenayo yariyongereye.Ninde murizo lens ebyiri zikunzwe cyane kubantu barwaye myopiya na presbyopiya?
1. Bifocals
Bifocals ifite impamyabumenyi ebyiri.Mubisanzwe, igice cyo hejuru gikoreshwa mukubona ahantu kure, nko gutwara no kugenda;igice cyo hepfo gikoreshwa mukubona hafi, nko gusoma igitabo, gukina na terefone igendanwa, nibindi. Iyo lensike ya bifocal yasohotse bwa mbere, mubyukuri babonwaga nkubutumwa bwiza kubantu bafite ubushishozi buke na presbyopiya, bikuraho ikibazo cyo kuvanaho kenshi no kwambara, ariko nkuko abantu babikoresheje, basanze lensike ya bifocal nayo ifite ibibi byinshi.
Mbere ya byose, imbogamizi nini yubwoko nkubu ni uko hari dogere ebyiri gusa, kandi ntihabeho impinduka nziza hagati yo kureba kure no hafi, kuburyo byoroshye kubyara prism phenomenon, bakunze kwita "gusimbuka ishusho".Kandi biroroshye kugwa mugihe wambaye, bikaba bidafite umutekano muke kubambara, cyane cyane abambaye ubusaza.
Icya kabiri, ikindi kigaragara kibangamiye lens ya bifocal ni uko iyo urebye neza witonze, ushobora kubona umurongo ugabanya itandukaniro hagati ya dogere ebyiri kuri lens.Kubijyanye rero nuburanga, ntibishobora kuba byiza cyane.Kubijyanye n’ibanga, bitewe nibiranga bigaragara biranga lensike, birashobora kuba bibi kubambara bato.
Lens ya Bifocal ikuraho ikibazo cyo gukuraho kenshi no kwambara myopiya na presbyopiya.Bashobora kubona neza kure no hafi, kandi igiciro kirahendutse;ariko intera yo hagati irashobora kuba idahwitse, kandi umutekano nuburanga ntabwo ari byiza.
2. Iterambere
Iterambere ryiterambere rifite ingingo nyinshi zokwibandaho, nka lens ya bifocal, irakwiriye kubantu bafite ubushishozi buke na presbyopiya.Igice cyo hejuru cyinzira zikoreshwa mukubona intera, naho hepfo ikoreshwa kugirango ibone hafi.Ariko bitandukanye na lisansi ya bifocal, hariho zone yinzibacyuho ("zone igenda itera imbere") hagati yinzira zigenda zitera imbere, ziduha umwanya wo guhuza n'imihindagurikire y'ikirere kugirango turebe intera iri kure cyane.Usibye hejuru, hagati, no hepfo, hari kandi impumyi kumpande zombi.Aka gace ntigashobora kubona ibintu, ariko ni gato, ntabwo rero bigira ingaruka kumikoreshereze.
Kubireba isura, lens igenda itera imbere ntigishobora gutandukanywa nikirahure kimwe cyerekanwe, kandi umurongo ugabanya ntuzaboneka byoroshye, kuko uwambaye lens igenda itera imbere gusa ashobora kumva itandukaniro ryimbaraga mubice bitandukanye.Birakwiriye cyane kubashaka kurinda ubuzima bwabo bwite.Kubireba imikorere, irashobora guhura nibikenewe byo kubona kure, hagati na hafi.Nibyiza cyane kureba intera yo hagati, hari zone yinzibacyuho, kandi iyerekwa rizasobanuka neza, kubijyanye rero ningaruka zo gukoresha, iterambere naryo ryiza kuruta bifocals.
Igihe cyo kohereza: Jun-30-2023