Kodwa ngaphaya nje kwelensi ye-multifocal nje engenamigca ebonakalayo, iilensi ezihambelanayo zenza abantu abanePresgoopia ukuba babone ngokucacileyo kuwo wonke umgama wonke.
Izibonelelo zeelensi ezihambelanayo ngaphezulu kwee-bifocals
I-Bifocal Lensess lenses inamandla amabini kuphela: enye yokubona kwigumbi elinye kunye nelinye lokubona kufutshane. Izinto eziphakathi, njengekrini zekhompyuter okanye izinto kwisherikhi yevenkile, zihlala zibuthathaka kunye neebhasi.
Ukuzama ukubona izinto kule "hluhwithi" ngokucacileyo, abakhupheli be-Bifoca kufuneka baqokelele iintloko zabo phezulu kwaye bajonge ngaphezulu, ukufumanisa ukuba yeyiphi na indawo yelensi isebenza ngcono.
I-lenses eqhubela phambili imbise ngokusondeleyo umbono wendalo owonwabileyo ngaphambi kokuqala kwePressopia. Endaweni yokubonelela ngamandla amabini nje anjengeebhulocal (okanye ezintathu, ezifana nezilwanyana), iilensi ezihambelanayo ziyinyani, ezihamba-nkqo-nkqo.
Umbono wendalo ngaphandle kwe "umfanekiso jat"
Imigca ebonakalayo kwii-bifocals kunye neetrifocals ziingcaciso apho kukho i-gorgut. Kwakhona, ngenxa yenani eliqingqiweyo le-lens kwii-bifacals kunye neestifocals, ubunzulu bakho bokugxila kwezi zenzo zinomda. Ukubonwa ngokucacileyo, izinto kufuneka zibe ngaphakathi kuluhlu oluthile lomgama. Izinto ezingaphandle kommisi ogutyungelwe zii-bifocal okanye ze-lens ze-zestifocal lensi ziya kutshitshiswa kwaye zitshintshe amandla eLensi.
I-lenses eqhubela phambili, kwelinye icala, iqhubekile inkqubela egudileyo, engenamthungo yelensi yombono ocacileyo kuwo wonke umgama. Iilensi ezihambelanayo zibonelela ngobunzulu bendalo ekugxilwe kuyo ngaphandle kokungabikho komfanekiso. "
Amandla eenguqu eziqhubayo ngokuthe ngcembe ukuya ngqo kwinqaku ukuba aqonde i-lens, abonelela ngamandla afanelekileyo e-lens abone izinto ngokucacileyo.
Inika umbono ocacileyo kuwo wonke umgama (kunokukude umgama omnye okanye ezintathu.
Ngowona mbono ulungileyo, intuthuzelo kunye nenkangeleko, unokukhetha iipasile ezibanzi ukuze kube lula kwaye kukhawuleze uziqhelanise neelensi eziqhubela phambili. Ungahamba uye kwiphephahttps: //www.ww.Ukujonga ezinye iinkcukacha malunga noyilo lwethu lwakutsha nje.