Lens ni ikintu cyingenzi mugukosora iyerekwa kandi biza muburyo butandukanye ukurikije ibyo uwambaye akeneye. Babiri mu bakunze gukoreshwa cyane ni intumbero imwe yo kureba hamwe na bifocal lens. Mugihe byombi bikora kugirango bikosore ubumuga bwo kutabona, byateguwe kubikorwa bitandukanye nabantu. Gusobanukirwa gutandukanya izo lens ni ngombwa muguhitamo neza, cyane cyane ko icyerekezo cyabantu gikeneye guhinduka hamwe nimyaka hamwe nubuzima bwabo. Muri iri sesengura rirambuye, tuzasesengura itandukaniro riri hagatiicyerekezo kimwenaIbice bibiri, harimo gusaba kwabo, inyungu, nuburyo bakemura ibibazo byihariye byo kureba.
1. Icyerekezo kimwe cyerekezo: Niki?
Icyerekezo kimwe cyerekanwe nuburyo bworoshye kandi bukoreshwa cyane muburyo bwamaso. Nkuko izina ribigaragaza, izo lens zagenewe gukosora icyerekezo ku burebure bumwe. Ibi bivuze ko bafite imbaraga zimwe zo gukosora hejuru yuburinganire bwa lens, bigatuma bikwiranye no gukemura ubwoko bumwe bwikosa ryangiritse - haba kurebera kure (myopia) cyangwa kureba kure (hyperopiya).
Ibintu by'ingenzi:
Imbaraga imwe:Lens ifite imbaraga zihoraho zo kwandikirwa, yibanda kumucyo kumwanya umwe kuri retina. Ibi bituma habaho icyerekezo gisobanutse intera imwe.
Imikorere yoroshye:Kuberako icyerekezo kimwe cyerekezo gikosora kubwoko bumwe gusa bwikibazo cyicyerekezo, birasa neza muburyo bwo gukora no gukora.
Kuri Myopia (Kureba kure):Abafite ubushishozi bafite ikibazo cyo kubona ibintu bya kure neza. Intumbero imwe yo kureba kure ikora mukwirakwiza urumuri mbere yuko ikubita retina, ifasha ibintu bya kure kugaragara.
Kuri Hyperopiya (Kureba kure):Abantu bafite ubushishozi barwana no kubona ibintu hafi. Icyerekezo kimwe cyerekezo cya hyperopia yibanda kumucyo cyane kuri retina, ikazamura hafi yicyerekezo.
Koresha Imanza:
Intumbero imwe yo kureba irashobora kandi gukoreshwa kubantu bafite astigmatism, imiterere aho cornea yijisho iba imeze kuburyo budasanzwe, biganisha kumyumvire igoretse kure. Indorerezi yihariye imwe yitwa toric lens yakozwe kugirango ikosore astigmatism.
Ibyiza by'Icyerekezo kimwe:
Igishushanyo cyoroshye n’umusaruro: Kuberako izo lens zagenewe gukosora iyerekwa intera imwe gusa, ziroroshye kandi zihenze kubyara kuruta linzira nyinshi.
Urwego runini rwa porogaramu:Intumbero imwe yo kureba irahuza kandi irakwiriye kubantu bingeri zose bafite ubwoko bumwe gusa bwikosa ryanga.
Igiciro cyo hasi: Mubisanzwe, intumbero imwe yo kureba irahendutse kuruta ibice bibiri cyangwa iterambere.
Guhuza n'imihindagurikire y'ikirere:Kuberako lens yose uko yakabaye ari imbaraga zayo zo gukosora, abambara intumbero imwe yo kureba bamenyera byoroshye bitabaye ngombwa ko bagoreka cyangwa ngo bagire ikibazo.
Urutonde ntarengwa:Intumbero imwe yo gukosora ikosora gusa ubwoko bumwe bwikibazo cyerekezo (hafi cyangwa kure), bishobora kuba bidahagije kubantu barwara presbyopiya cyangwa ibindi bihe bijyanye nimyaka bigira ingaruka kumyerekano yegeranye cyangwa kure.
Impinduka z'amaso kenshi:Kubantu bakeneye gukosorwa kubikorwa byombi no hafi-hafi (urugero, gusoma no gutwara), icyerekezo kimwe gishobora gukenera guhinduranya hagati y'ibirahuri bitandukanye, bishobora kutoroha.
Imipaka yerekana icyerekezo kimwe:
①.Limited Focus Range: Icyerekezo kimwe cyerekezo gikosora gusa ubwoko bumwe bwikibazo cyerekezo (hafi cyangwa kure), gishobora kuba kidahagije kubantu barwara presbyopiya cyangwa nibindi bihe bijyanye nimyaka bigira ingaruka kumyerekano yegeranye cyangwa kure.
②.Imihindagurikire y'amaso kenshi: Kubantu bakeneye gukosorwa kubikorwa byombi no hafi (urugero, gusoma no gutwara), icyerekezo kimwe gishobora gukenera guhinduranya hagati y'ibirahuri bitandukanye, bishobora kutoroha.
2. Lens ya Bifocal: Niki?
Indwara ya Bifocal yateguwe kubantu bakeneye gukosorwa haba kure yintera no hafi yo kureba. Izi lens zigabanyijemo ibice bibiri bitandukanye: igice kimwe nukubona ibintu bya kure neza, mugihe ikindi nukubona ibintu byegeranye, nkigihe usoma. Bifocals yari isanzwe ikorwa kugirango ikemure presbyopiya, imiterere aho ijisho ritakaza ubushobozi bwo kwibanda kubintu byegeranye uko abantu basaza.
Ibintu by'ingenzi:
Ibintu bibiri byandikirwa mumurongo umwe:Lens ya Bifocal ifite imbaraga ebyiri zitandukanye zo gukosora mumurongo umwe, mubisanzwe utandukanijwe numurongo ugaragara. Igice cyo hejuru cya lens gikoreshwa mukurebera kure, mugihe igice cyo hepfo gikoreshwa mugusoma cyangwa indi mirimo yegeranye.
Umurongo utandukanya:Gakondo ya bifocals ifite umurongo cyangwa umurongo utandukanya uturere tubiri twerekanwe, bigatuma byoroshye guhinduranya intera no gusoma ibyanditswe muguhindura amaso hejuru cyangwa hepfo.
Kuri Presbyopiya:Impamvu zikunze kugaragara abantu bambara lens ya bifocal ni ugukosora presbyopia. Iyi miterere ijyanye n'imyaka mubisanzwe itangira kwibasira abantu bari hagati yimyaka 40 na 50, bikabagora kwibanda kubintu biri hafi, nko gusoma cyangwa gukoresha terefone.
Kubyerekezo icyarimwe Gukosora:Bifocals nibyiza kubantu bakeneye guhinduranya kenshi hagati yo kureba ibintu bya kure (nko gutwara cyangwa kureba TV) no gukora imirimo yegeranye (nko gusoma cyangwa gukoresha mudasobwa). Igishushanyo-kimwe-kimwe kibemerera gukora ibi badahinduye ibirahure.
Koresha Imanza:
Ibyiza bya Bifocal Lens:
Byoroshye Babiri-umwe-umwe:Bifocals ikuraho gukenera gutwara ibirahuri byinshi. Muguhuza intera hamwe no gukosora iyerekwa muburyo bumwe, batanga igisubizo gifatika kubafite presbyopiya cyangwa ibindi bakeneye kwibanda cyane.
Kunoza imikorere yibikorwa:Kubantu bakeneye icyerekezo gisobanutse haba kure kandi hafi, bifocals itanga iterambere ryihuse mumikorere ya buri munsi nta kibazo cyo guhora uhinduranya ibirahure.
Ikiguzi-Cyiza Ugereranije niterambere: Mugihe lens ya bifocal ihenze kuruta iyerekwa rimwe, muri rusange irahendutse kuruta lens igenda itera imbere, itanga inzibacyuho yoroshye hagati yibice bitandukanye.
Igice kigaragara: Kimwe mubintu bigaragara cyane biranga lens ya bifocal ni umurongo ugaragara utandukanya uturere tubiri. Abakoresha bamwe basanga ibi muburyo budashimishije, kandi birashobora no gukora "gusimbuka" mugihe uhinduranya mubice byombi.
Icyerekezo giciriritse:Bitandukanye ninzira zigenda zitera imbere, bifocals ifite uturere tubiri twandikirwa - intera na hafi. Ibi bisiga icyuho cyo kureba hagati, nko kureba ecran ya mudasobwa, ishobora kuba ikibazo kubikorwa bimwe.
Igihe cyo Guhindura:Abakoresha bamwe barashobora gufata umwanya kugirango bahindure impinduka zitunguranye hagati yibice byombi byibandaho, cyane cyane iyo bahinduye intera hamwe nicyerekezo hafi.
Imipaka ya Bifocal Lens:
①.Ibice bigaragara: Kimwe mubintu bigaragara cyane biranga lens ya bifocal ni umurongo ugaragara utandukanya uturere tubiri. Abakoresha bamwe basanga ibi bidashimishije, kandi birashobora no gukora "gusimbuka" mugihe uhinduranya mubice byombi.
②.Icyerekezo giciriritse cyerekanwe: Bitandukanye ninzira zigenda zitera imbere, bifocals ifite uduce tubiri twandikirwa - intera na hafi. Ibi bisiga icyuho cyerekezo cyo hagati, nko kureba ecran ya mudasobwa, ishobora kuba ikibazo kubikorwa bimwe.
③.Igihe cyo Guhindura: Bamwe mubakoresha barashobora gufata igihe cyo kumenyera impinduka zitunguranye hagati ya zone ebyiri yibanze, cyane cyane iyo bahinduye intera no hafi yicyerekezo kenshi.
3. Kugereranya birambuye hagati yicyerekezo kimwe na Bifocal Lens
Kugirango usobanukirwe neza itandukaniro ryingenzi riri hagati yicyerekezo kimwe ninzira ebyiri, reka tugabanye itandukaniro ryabo mubijyanye nigishushanyo, imikorere, nuburambe bwabakoresha.
4. Ni ryari Ukwiye Guhitamo Icyerekezo kimwe cyangwa Bifocal Lens?
Guhitamo hagati yicyerekezo kimwe ninzira zifatika ahanini biterwa nicyerekezo cyawe gikenewe. Hano hari ibintu bimwe na bimwe aho buri bwoko bushobora kuba amahitamo meza:
Guhitamo Icyerekezo kimwe:
①.Kutareba kure cyangwa Kurebera kure: Niba ufite ubwoko bumwe gusa bwikosa ryangiritse, nka myopiya cyangwa hyperopiya, kandi ntusabe gukosorwa haba hafi no kure, icyerekezo kimwe nicyerekezo cyiza.
②.Urubyiruko Umuntu ku giti cye: Muri rusange abakiri bato bakeneye gukosorwa kubwoko bumwe bwikibazo. Kubera ko badakunze guhura na presbyopia, lens imwe imwe itanga igisubizo cyoroshye kandi cyigiciro.
Guhitamo Bifocal Lens:
①.Ibihe bifitanye isano na Presbyopiya: Niba ufite ikibazo cyo kwibanda kubintu byegeranye bitewe na presbyopiya ariko ukaba ukeneye gukosorwa intera, lens bifocal ni amahitamo afatika.
. Guhindura kenshi hagati yicyerekezo cya kure na kure: Kubantu bakeneye guhinduranya buri gihe hagati yo kureba ibintu bya kure no gusoma cyangwa gukora imirimo yegeranye, lens bifocal itanga ubworoherane nibikorwa mumurongo umwe.
5. Umwanzuro
Muri make, icyerekezo kimwe cyerekanwe hamwe na bifocal lens byashizweho kugirango bihuze ibyifuzo bitandukanye byo gukosora. Intumbero imwe yo kureba iroroshye kandi nziza kubantu bato cyangwa bakeneye gukosora ubwoko bumwe bwikibazo cyerekezo, nko kutareba kure cyangwa kureba kure. Ku rundi ruhande, lensifike ya Bifocal igenewe abantu bakuze bafite presbyopiya bakeneye gukosorwa haba hafi ndetse no kure, bitanga igisubizo cyoroshye-kimwe-kimwe.
Guhitamo linzira iboneye nintambwe yingenzi muburyo bwo kureba neza ubuzima bwiza no guhumurizwa burimunsi. Kugisha inama hamwe na optometriste cyangwa inzobere mu kwita ku jisho birasabwa cyane kumenya ubwoko bwa lens bujyanye nibyo ukeneye kugiti cyawe.
Igihe cyo kohereza: Ukwakira-16-2024