Iindondo zamehlo ziza kwiindidi ezahlukeneyo.Oku kuquka i-lens yombono omnye enamandla enye okanye amandla phezu kwe-lens yonke, okanye i-bifocal okanye i-trifocal lens enamandla amaninzi ngaphezu kwelensi yonke.
Kodwa ngelixa ezi zimbini zokugqibela zikhetho ukuba ufuna amandla ahlukeneyo kwiilensi zakho ukuze ubone izinto ezikude nezikufuphi, iilensi ezininzi ze-multifocal ziyilwe ngomgca obonakalayo owahlula iindawo ezimiselweyo ezahlukeneyo.
Ukuba ukhetha i-lens ye-multifocal engena-line yakho okanye yomntwana wakho, i-lens eyongezelelweyo eqhubekayo inokuba yinto onokukhetha kuyo.
Iilensi zangoku eziqhubekayo, kwelinye icala, zinethamo eligudileyo kwaye lingaguquguqukiyo phakathi kwamagunya elensi awohlukeneyo.Ngaloo ndlela, banokubizwa ngokuba "i-multifocal" okanye "i-varifocal" lens, kuba banikezela zonke iingenelo ze-bi- okanye iilensi ze-trifocal endala ngaphandle kokuphazamiseka kunye ne-cosmetic drawbacks.
Iinzuzo zeeLensi eziqhubelekayo
Ngeelensi eziqhubelekayo, akusayi kufuneka ube neeglasi ezingaphezulu kwesinye.Awudingi ukutshintshana phakathi kokufunda kwakho kunye neeglasi eziqhelekileyo.
Umbono onenkqubela-phambili unokubonakala ungokwemvelo.Ukuba utshintsha ekujongeni into ekufutshane nento ekude, awuyi kufumana "uxhuma" njengo
ubuya kwenza nge-bifocals okanye i-trifocals.Ngoko ukuba uqhuba, unokujonga kwideshibhodi yakho, endleleni, okanye uphawu olumgama oluhamba kakuhle.
Zibukeka njengeeglasi eziqhelekileyo.Kolunye uphononongo, abantu abanxiba i-bifocals eqhelekileyo banikwa iilensi eziqhubekayo ukuze bazame.Umbhali wesifundo uthe uninzi lwenze utshintsho olulungileyo.
Ukuba uwuxabisile umgangatho, ukusebenza kunye nokutsha ufike kwindawo elungileyo.
Isalathiso&Izinto Ezifumanekayo
 Izinto eziphathekayo | NK-55 | Polycarbonate | UMR-8 | UMR-7 | UMR-174 |
 Refractive Index | 1.56 | 1.59 | 1.60 | 1.67 | 1.74 |
 Ixabiso le-Abbe | 35 | 32 | 42 | 32 | 33 |
 Ubunzima obuthile | 1.28g/cm3 | 1.20g/cm3 | 1.30g/cm3 | 1.36g/cm3 | 1.46g/cm3 |
 Ibhlokhi ye-UV | 385nm | 380nm | 395nm | 395nm | 395nm |
 Yila | SPH | SPH | SPH/ASP | I-ASP | I-ASP |
 IiCoatings ezifumanekayo | HC/HMC/SHMC | HC/HMC | SHMC | SHMC | SHMC |
Ngubani osebenzisa iiLensi eziqhubela phambili?
Phantse nabani na onengxaki yombono unokunxiba ezi lens, kodwa zifuneka ngokuqhelekileyo ngabantu abaneminyaka engaphezu kwama-40 abane-presbyopia (ukubona kude) --umbono wabo uyamfiliba xa besenza umsebenzi osondeleleneyo njengokufunda okanye ukuthunga.Iilensi eziqhubekayo zingasetyenziselwa abantwana, kwakhona, ukuthintela ukwanda kwe-myopia (ukubona kufutshane).
Iingcebiso zokuLungiselela kwiiLensi eziqhubela phambili
Ukuba uthatha isigqibo sokuzama, sebenzisa la macebiso:
Khetha ivenkile ye-optical esemgangathweni enokukukhokela kwinkqubo, ikuncede ukhethe isakhelo esilungileyo, kwaye uqinisekise ukuba iilensi zigxile ngokugqibeleleyo phezu kwamehlo akho.Inkqubela phambili engafanelekanga sisizathu esiqhelekileyo sokuba kutheni abantu bangakwazi ukuziqhelanisa nabo.
Zinike iveki enye okanye ezimbini ukuba uziqhelanise nazo.Abanye abantu banokufuna ixesha elingangenyanga.
Qinisekisa ukuba uyayiqonda imiyalelo kagqirha wakho wamehlo malunga nendlela yokuyisebenzisa.
Nxiba iilensi zakho ezintsha rhoqo kwaye uyeke ukunxiba ezinye iiglasi zakho.Kuya kwenza uhlengahlengiso ngokukhawuleza.