Kodwa ngaphandle kokuba i-multifocal lens engenayo imigqa ebonakalayo, amalensi aqhubekayo enza abantu abane-presbyopia baphinde babone ngokucacile kuwo wonke amabanga.
Izinzuzo zamalensi aqhubekayo ngaphezu kwama-bifocals
Amalensi e-bifocal eyeglass anamandla amabili kuphela: elokubona lonke igumbi elinye elokubona eduze. Izinto eziphakathi nendawo, njengesikrini sekhompyutha noma izinto eshalofini lesitolo segrosa, ngokuvamile zihlala zifiphele ngama-bifocal.
Ukuze uzame ukubona izinto kulobu bubanzi "obumaphakathi" ngokucacile, abagqoki be-bifocal kufanele banqekulise amakhanda abo phezulu naphansi, ngokushintshana babheke phezulu naphansi kwe-bifocals yabo, ukuze banqume ukuthi iyiphi ingxenye yelensi esebenza kangcono.
Amalensi aqhubekayo alingisa ngokuseduze kakhulu umbono wemvelo owujabulele ngaphambi kokuqala kwe-presbyopia. Esikhundleni sokuhlinzeka ngamalensi amabili nje afana nama-bifocals (noma amathathu, njengama-trifocals), amalensi aqhubekayo angamalensi eqiniso "ama-multifocal" anikeza ukuqhubekela phambili okubushelelezi, okungenamthungo kwamandla amaningi amalensi okubona okucacile egumbini lonke, eduze futhi kuwo wonke amabanga ngaphakathi. phakathi.
Umbono wemvelo ongenayo "isithombe gxuma"
Imigqa ebonakalayo ku-bifocals kanye ne-trifocals amaphuzu lapho kukhona khona isigubhukane. Futhi, ngenxa yenani elilinganiselwe lamandla amalensi kuma-bifocals nama-trifocals, ukujula kwakho kokugxila ngalawa lens kukhawulelwe. Ukuze kubonakale ngokucacile, izinto kufanele zibe phakathi kwebanga elithile lamabanga. Izinto ezingaphandle kwamabanga ambozwe amandla e-bifocal noma ama-trifocal lens zizofiphaliswa futhi zishintshe amandla elensi.
Amalensi aqhubekayo, ngakolunye uhlangothi, anokuqhubeka okushelelayo, okungenamthungo kwamandla amalensi okubona kahle kuwo wonke amabanga. Amalensi aqhubekayo anikeza ukujula okungokwemvelo okwengeziwe ngaphandle kokuthi "gxuma isithombe."
Amandla amalensi aqhubekayo ashintsha kancane kancane ukusuka kwelinye iphuzu ukuya kwelinye endaweni engaphezulu, enikeza amandla afanele amalensi okubona izinto ngokucacile kunoma yiliphi ibanga.
Inikeza umbono ocacile kuwo wonke amabanga (kunokuba kube amabanga wokubuka amabili noma amathathu kuphela ahlukene).
Ukuze uthole umbono ongcono kakhulu, ukunethezeka nokubukeka, ungakhetha amaphasishi abanzi ukuze uzivumelanise nezimo kalula futhi ngokushesha kunamalensi esizukulwane sokugcina. Ungangena ekhasinihttps://www.universeoptical.com/wideview-product/ukuze uhlole imininingwane eyengeziwe mayelana nemiklamo yethu yakamuva eqhubekayo.