Ukuguga kwabemi kuye kwaba yinto eqhelekileyo kwihlabathi. Kule mihla, iingxaki zempilo zabalupheleyo zithathelwa ingqalelo ngumntu wonke. Phakathi kwazo, iingxaki zempilo zombono zabalupheleyo nazo zifuna ingqalelo nenkxalabo yomntu wonke. Abantu abaninzi bacinga ukuba i-presbyopia ayikwazi ukuwabona ngokucacileyo amagama akufuphi, ngoko ke vele uthenge iiglasi ze-presbyopic. Enyanisweni, ukhetho lweeglasi zokufunda alukho ngokwenene "ngokungaqhelekanga". Kubaluleke kakhulu ukukhetha ngononophelo iperi yeeglasi zokufunda ezikufanelayo.
Indlela yokukhetha iiglasi zokuFunda
1.UMBONO OMNYE
Yeyona ndlela ixhaphakileyo yokulungisa i-presbyopia. Ngokuqhelekileyo, ngesiseko sokubona ngokucacileyo kumgama, umlinganiselo othile wamandla esipili esilungileyo uyongezwa, ukuze ukubona ngokucacileyo kumgama kucace kufutshane.
Izinto eziluncedo:Ukukhanya kwelensi ekhululekileyo, engaguqukiyo ngaphakathi kwintsimi yombono, kulula ukuziqhelanisa; yezoqoqosho kwaye iyafikeleleka.
Izinto ezingeloncedo:Kwabanye abantu abafuna ukunxiba iindondo ukuze babone kude, utyando lunzima ngakumbi. Ngokomzekelo, abantu abadala abane-myopia ephakathi ukuya phezulu ngokuqhelekileyo kufuneka banxibe iiglasi ezine-myopia ephakamileyo xa behamba kwaye bebukele iTV; ukuba bafunda iincwadi okanye iiselfowuni, kufuneka bazitshintshe. Ukunxiba iiglasi ze-presbyopic, ukuzithatha nokuzikhupha, umsebenzi unzima kakhulu. Kwimeko enjalo, ngaba kukho iperi yeglasi enokusombulula ingxaki yokubona kude nakufuphi ngaxeshanye? Ewe, bifocals.
2. Ii-Bifocals
Ibhekiselele ekusetyenzweni kwamagunya amabini ahlukeneyo erefraction kwiiglasi ezifanayo ukuba ibe yilensi yokubona eneendawo ezimbini zokulungisa ngaxeshanye.
Izinto eziluncedo:Ngokufanelekileyo, isiqingatha esiphezulu selensi yindawo yombono ekude, kwaye isiqingatha esisezantsi yindawo yombono okufutshane. Iperisi enye yeglasi iyayicombulula ingxaki yokubona kude nakufuphi, kwaye iyanqanda ukunduluka nokunxiba iipere ezimbini zeglasi ukuya phambili naphambili.
Izinto ezingeloncedo:Kubantu abadala abanamaqondo aphezulu e-presbyopia, izinto ezikumgama ophakathi zisenokungacaci; Impembelelo yeprism esezantsi yenza ukuba into ibonakale "ixhuma" kwindawo ephezulu.
Xa ithelekiswa nelensi yombono omnye, i-bifocal lens iyakwazi ukubona zombini ezikude nakufuphi, kodwa ayinakuzinceda kwizinto ezikumgama ophakathi, ngoko ke ngaba zikhona iiglasi ezikwaziyo ukubona kude, phakathi nakufuphi, kwaye inokubona ngokucacileyo kumgama ngamnye? Ewe, iindondo zeProgressive.
3. Iiglasi eziqhubekayo
Kubhekiselele kutshintsho oluthe ngcembe lwezibuko ezongezelelweyo ezingenakubalwa ukusuka phezulu ukuya ezantsi kwisiqwenga seeglasi, ukubonelela lowo uzinxibileyo umbono oqhubekayo nocacileyo ukusuka kude ukuya kufutshane, kwaye akukho luhlobo lukhethekileyo lweglasi ngokwembonakalo yelensi.
Izinto eziluncedo:Elula, umphezulu welensi yindawo yombono ekude, kwaye ezantsi yindawo yombono ekufutshane. Kukho indawo yegradient ende kwaye emxinwa edibanisa ezi zimbini, ekuvumela ukuba ubone izinto ezikwimigama ephakathi. Amacala amabini ommandla wegradient ziindawo ezisecaleni. Iperi yeglasi ngaxeshanye isombulula iimfuno ezibonakalayo zemigama ekude, ephakathi kunye nekufuphi, ukufezekisa "ukutshintsha kwesantya esingenasinyathelo".
Izinto ezingeloncedo:Xa kuthelekiswa nezipili zombono omnye, kuthatha ixesha elide ukufunda nokuziqhelanisa.
Ngoko, ngaba "kube kanye kunye" ukukhetha iiglasi ezifanelekileyo zokufunda?
Kwaye akunjalo. Iqondo le-presbyopia liya kuqhubeka nokunyuka kunye nobudala, ngokubanzi likhula ngesantya sama-50 degrees rhoqo kwiminyaka emi-5. Uphononongo lufumene ukuba kubantu abangenayo nayiphi na i-diopter, iqondo le-presbyopia kwiminyaka engama-45 lihlala liyi-100 degrees, kwaye liyanda ukuya kuma-degrees angama-200 kwiminyaka eyi-55. Kwiminyaka engama-60, idigri iya kwanda ukuya kuma-degrees angama-250 ukuya kuma-300 degrees. Iqondo le-presbyopia ngokubanzi alinzi nzulu. Kodwa kwimeko ethile, kucetyiswa ukuba uye kwisibhedlele samehlo kwi-optometry yonyango ngaphambi kokuyalela iiglasi
Ukuba ufuna ukwazi ngakumbi malunga nefashoni yeglasi kunye nothethwano lweshishini, nceda undwendwele iwebhusayithi yethu kwaye uqhagamshelane nathi nangaliphi na ixesha.
Ixesha lokuposa: Jul-28-2023