Ni irihe tandukaniro riri hagati ya varifocals na bifocals

Imiterere hamwe na bifocals nibyiza byombi byijisho ryamaso yagenewe gukemura ibibazo byerekezo bijyanye na Presbyopia, imiterere ijyanye n'imyaka ireba hafi y'Icyerekezo. Mugihe ubwoko bwombi bwa lens bufasha abantu kubona intera nyinshi, ziratandukanye mugushushanya no gukora. Muri ubu buryo bwuzuye, tuzasesengura itandukaniro ryingenzi hagati ya variali na bifocals, harimo nubwubatsi, inyungu, ibisubizo, nibitekerezo byo guhitamo imwe kurenza iyindi.

Bifocals: Ibihimba byavumbuwe na Benjamin Franklin mu mpera z'ikinyejana cya 18 kandi bigizwe n'ibice bibiri bitandukanye. Igice cyo hejuru cya lens gikoreshwa mu iyerekwa rya kure, mugihe igice cyo hepfo cyagenwe cyo hafi yegereye iyerekwa.

Kubaka:Lens Lens irangwa nu murongo utambitse utandukanya ibice bibiri bya lens. Uyu murongo witwa "Umurongo wa Bifical," kandi utanga ibimenyetso byerekana neza inzibacyuho hagati yintera no hafi yicyerekezo cya lens.

Inyungu Nziza:Inyungu nyamukuru ya lens lens ni ugutandukana kwabo hagati yintera no hafi yegereje. Inzego zitunguranye kumurongo wa bifocal zemerera abakuru guhindura byoroshye hagati yintera ebyiri zireba mu gice gikwiye cya lens.

Ibisubizo:Imwe mu myambaro nyamukuru ya bifocals numurongo ugaragara, ushobora gushidikanya ntibishimishije kubantu bamwe. Byongeye kandi, inzibacyuho itunguranye ibice byombi bya lens birashobora gutera kutamererwa neza cyangwa kugoreka, cyane cyane mugihe cyahindutse hejuru yihuta hamwe nibintu hafi.

Ibitekerezo:Mugihe usuzumye biFocals, abantu bagomba kumenya icyerekezo cyihariye nibyo bakunda. Bifocals ni amahitamo akwiye kubantu bafite ibyangombwa bitandukanye kandi byateganijwe kure cyane kandi hafi ya Vision Ikosora.

Varifocali:Varifocals, izwi kandi kubyerekeje lens zitera imbere, tanga inzibacyuho zidashira hagati yintera ndende yibanze idafite umurongo ugaragara uboneka muri bifocals. Iyi lens itanga ubugororangingo, hagati, kandi hafi ya Vision muburyo bwa lens imwe.

Kubaka:Lens Lens ikubiyemo iterambere gahoro gahoro kuva hejuru kugeza hasi, ryemerera abakuru guhindura ibintu bidahwitse hagati yintera itandukanye idafite umurongo ugaragara. Bitandukanye na biFocals, lens Lens ntabwo ifite igice cyo gutandukana kigaragara, atanga isura ishimishije kandi yinzerere.

Inyungu Nziza:Inyungu nyamukuru yinshuro zitandukanye nubushobozi bwabo bwo gutanga icyerekezo gihoraho, karemano cyo gukosora muburyo butandukanye. Iki gishushanyo cyemerera abakuru kugirango bahindure neza hagati ya kure, hagati, kandi hafi ya Vision utabonye impinduka zitunguranye zijyanye na lens za farical.

Ibisubizo:Mugihe amajwi asobanura uburambe busanzwe bwerekana, abakuru bamwe barashobora gukenera umwanya wo kumenyera imiterere yinzira. Iki gihe cyo guhindura, akenshi kivugwa ko ari "kurwanya imihindagurikire y'ikirere," gishobora kuba kirimo kumenyera ahantu hatandukanye ku mwenda no kwiga gukoresha imyenda neza mu bikorwa bitandukanye.

Ibitekerezo:Mugihe usuzumye amajwi, abantu bagomba kuzirikana imibereho yabo ningeso zigaragara. Lenyuras ya varifocal nibyiza kubasaba icyerekezo kidafite ishingiro hejuru yintera nyinshi kandi nifuza igishushanyo mbonera cya lens kandi cyiza.

Guhitamo hagati ya varifocals na bifocals: mugihe ufashe icyemezo hagati ya varifocals na bifocali, ibintu byinshi bigomba gufatwa nkibikenewe cyane kubikorwa byihariye hamwe nibyo bikenewe.

Imibereho n'ibikorwa:Reba ibikorwa byihariye nibikorwa bisaba icyerekezo gisobanutse muburyo butandukanye. Kurugero, abantu barimo bahinduranya kenshi hagati ya hafi kandi kure cyane barashobora kungukirwa ninzibacyuho zidashira zitangwa na varifocali. Kurundi ruhande, abafite iyerekwa ryerekanwe kurushaho barashobora kubona bifocals kuba amahitamo afatika.

Ibyifuzo byiza:Abantu bamwe bashobora kuba bafite ibyo bakunda kubyerekeye isura yababyiboneye. Varifocals, nibabura kumurongo ugaragara, akenshi utange uburyo bushimishije bwo kubaha abakuru bashyira imbere uburebure, bugezweho. Bikorokoli, hamwe numurongo wabo utandukanye, urashobora kuba udashimishije muburyo bwiza bwo gusaza.

Ihumure no kurwanya imihindagurikire y'ikirere:Ibitekerezo bigomba gutangwa mugihe cyo guhindura bisabwa kuri varifocals na bifocali. Mugihe amajwi atandukanye atanga inzibacyuho isanzwe hagati yintangiriro, abarasane barashobora gukenera igihe cyo kumenyera kuri lens igenda itera imbere. Abashinyaguzi ba Bifocal barashobora guhura n'imihindagurikire y'ikibazo kubera ubundi buryo busobanutse hagati ya intera no mu bice byegereye icyerekezo.

INGINGO N'Icyerekezo gikeneye:Abantu bafite ibyangombwa bigoye cyangwa ibibazo byihariye biboneka bishobora gusanga ubwoko bumwe bwa lens bubereye ibyo bakeneye. Ni ngombwa kugisha inama umwuga w'amaso kugirango umenye uburyo bukwiye bwa lens ikwiye ukurikije ibisabwa.

Mu gusoza, varifocals na bifocals biratandukanye mubwubatsi, inyungu za optique, ibibi, nibitekerezo kubansare. Mugihe bifocals itanga uburyo busobanutse hagati yintera no hafi yegereje hamwe numurongo ugaragara, variakocals itanga inzitizi zidashira hagati yintera ndende nta gice kigaragara. Iyo uhisemo hagati ya varial na bifocal, imibereho, ibyifuzo byiza, ihumure, guhuza n'imihindagurikire, hamwe niyerekwa kugiti cyabo bose bugomba gusuzumwa. Mugusobanukirwa ibintu bitandukanye nibitekerezo bifitanye isano na buri bwoko bwa Lens, abantu barashobora gufata icyemezo neza kugirango bakemure ibisabwa byemewe.