Iilensi ze-bifocal ezingabonakaliyo ziilensi ze-eyewear zobugcisa obuphezulu ezinokulungisa i-hyperopia kunye ne-myopia ngaxeshanye. Uyilo lolu hlobo lwelensi alujongi nje kuphela iingxaki ezinokulungiswa ziiglasi eziqhelekileyo, kodwa lukwajonga neengxaki zokubona ezikhoyo kumaqela akhethekileyo. Kweli nqaku, siza kubonelela ngentshayelelo eneenkcukacha ngemisebenzi kunye neenzuzo zeelensi ze-bifocal ezingabonakaliyo.
Iimpawu: Kukho iindawo ezimbini ezijolise kuzo kwisibini esinye seelensi, oko kukuthi, kwilensi enye eqhelekileyo
Gquma ilensi encinci enokukhanya okwahlukileyo kwilensi:
Isetyenziswa ngokutshintshiselana kwizigulana ezine-presbyopia ukuze zibone kude nakufutshane:
Ngaphezulu kukho umgama wokubukela (ngamanye amaxesha ukukhanya okusicaba), kwaye ngezantsi kukho umgama wokubukela
Ixesha lokufunda:
I-far degree ibizwa ngokuba yi-up light, kwaye i-near degree ibizwa ngokuba yi-down light.
Umahluko ophantsi wokukhanya yi-ADD (ukukhanya kwangaphandle);
Yahlulwe yaba lukukhanya okuphindwe kabini okuthe tyaba, ukukhanya okuphindwe kabini okuphezulu, kunye nokujikeleza ngokwemilo yesiqwenga esincinci
Isibane esiphindwe kabini esiphezulu, njl.
Iingenelo: Oku kususa isidingo sokuba izigulane ezine-presbyopia zitshintshe iiglasi zazo xa zijonge kufutshane nakude.
Iingxaki: Kukho into yokutsiba xa utshintsha phakathi kokujonga kude nokujonga kufutshane;
Kukho umahluko omkhulu kwinkangeleko kwiilensi eziqhelekileyo.
Ngokwemo yenxalenye yokukhanya esezantsi yelensi ye-bifocal, inokwahlulwa ibe:Iflethi ephezulu,Isiphelo esijikelezileyo kunyeAyibonakali.
Xa ithelekiswa neFlat-Top kunye neRound-Top, i-Invisible Lens inenzuzo yokungakwazi ukwahlula ngokucacileyo umda phakathi kwe-myopia kunye ne-presbyopia kwimbonakalo, kwaye ifana kakhulu neelensi zelensi enye eziqhelekileyo. Xa ujonga izinto, akukho mvakalelo icacileyo yokuthintelwa, okwenza ukunxiba kube lula ngakumbi.
Le yilensi yethu engabonakaliyo ene-photogrey egqityiweyo, enokuba nemiphumo yokutshintsha umbala nokukhanya okuluhlaza okwesibhakabhaka.
Akukho mda ucacileyo, akunjalo?
Emva kokuba ikhanyiswe kukukhanya okutshintsha umbala, ibonakala ingwevu.
Ukuba unomdla kule mveliso, nceda unxibelelane nathi. Khetha iilensi ezingabonakaliyo eziza kukuzisela amava entuthuzelo angalindelekanga.！
Ixesha lokuthumela: Novemba-17-2023