Bifocals usizo emehlweni

uphuhliso oluqhubekayo zobugcisa lwezonyango lwenza izigidi zabantu ehlabathini lonke, ukuba abe umbono yabo elahlekileyo baze baphile ubomi ngokupheleleyo. Enye yeendlela olungqiniweyo ukuba kude presbyopia, olwenzeka kunye ubudala abantu kakhulu ukusetyenziswa ngambini ezimbini okanye ngaphezulu iindondo. Kakade ke, oku akusoloko lula, yaye kuza kubanceda bifocals, leyo ukudibanisa iimpawu izibini ezimbini.

Ngokuqhelekileyo, nakwisiqingatha eliphezulu kwiglasi kwezi iiglasi ukwenzela ukuba ubone izinto ezikude, umzantsi - ukwahlula izinto zibe kufutshane. Ezi zibuko zibuko ingaba, ngoko bifocals babe trifocals okanye ezininzi.

Ingcamango yendalo waphefumlelwa ngemvelo, ezinye iintlobo ngeentlobo zeentlanzi babe kwiilensi emehlweni, leyo elungileyo ikuvumela ukuba ubone izinto ezantsi dami kwaye ngaxeshanye ngokusondeleyo ulandele indlela iintaka ezidla phezulu. Ekukholelwa ukuba bifocals yokuqala kwemoto Bendzhamin Franklin, ngubani ehlangene ngambini kuzo iindondo kwenye.

An Uphuhliso umdla yale mbono wacebisa Scientist kwaSirayeli Zeev Zalewski, ngubani zidibene kwiglasi ukuze izibuko kwiilensi Kulula kakhulu ukuyisebenzisa. iindondo zakhe akukhethi elibukhali phakathi Izahlulo. Ukukhanya eboniswe kwi ekude kwanekufuphi lujolise kwenye kumsinga ngokuqhubekayo, nolwenzelwa yonke kwiretina. Oku kukuvumela zolunga ukubona zonke izinto. Kwezi zibuko amehlo ngaphantsi udiniwe, yaye kufuneka ixesha kancinci ukuziqhelanisa nolu kubo.

phawu umdla kubonisiwe izilingo zabo. Kwenzeka ukuba uyakwazi ukunyenyisa zombini abangaboni kakuhle. Oko kukuthi, ezi iindondo abakwazi ukumelana kuphela kweli phakade sifo, baluncedo kakhulu njengenyathelo lothintelo.

Uphuhliso lobuchwepheshe eliphezulu kwakhona ibonelela ngamathuba ezongezelelweyo kuphuhliso yokumpompoza zolondolozo. Abasungula izibuko kwiilensi in version yayo elektroniki. Kulo mzekelo, phakathi Izahlulo ezimbini lifakwa ibe olunombala wamanzi akhazimlayo screen, isinika umfanekiso.

Kwimeko ye-electronic version ye bifocals kubaphuhlisi bajongene nemingeni ukwandisa umgangatho umfanekiso. izinto ezinomdla ezintsha kunye iinketho zokwandisa okanye zokunciphisa umfanekiso, kananjalo ukuxhomekeka. I AMAGQABAZA ▸ zokuqala kubonelelwa ngazo PixelOptics, apho waqhubeka uphando lwakhe kule ndawo.

Emva kokudibana nogqirha wakho, unako ukuthenga bifocals. ixabiso labo kuyahlukana nedlela kwiimveliso inkampani kunye nomgangatho iimpahla. Kodwa eyona nto ibalulekileyo kule nkalo, oko esikhethwe kakuhle parameters ngongoma. Kwi oku kuxhomekeke kukhubazeko yokugqibela yexesha ingathatha ukuya kwiintsuku ezilishumi emva ekuqaleni ukusetyenziswa.

Ukuba unayo ixesha elininzi esebenza kunye izinto ezikufuphi, iglasi ezantsi kufuneka indawo enkulu ngaphezu eliphezulu. Kwaye, oko, xa esebenza ngezinto ezikude, uthenge nkulu kummandla omkhulu ngeefestile eliphezulu. Oku kuya kukunceda ngokukhawuleza ukuqhelana imveliso entsha kwaye baphile ubomi ngokupheleleyo.