Izibuko zamehlo ziza ngezinhlobo ezahlukene.Lokhu kufaka phakathi ilensi yombono owodwa enamandla eyodwa noma amandla phezu kwayo yonke ilensi, noma ilensi ye-bifocal noma i-trifocal enamandla amaningi phezu kwayo yonke ilensi.
Kodwa nakuba okubili kokugcina kuyizinketho uma udinga amandla ahlukile kumalensi akho ukuze ubone izinto ezikude naseduze, amalensi amaningi e-multifocal aklanywe ngomugqa obonakalayo ohlukanisa izindawo ezihlukene zemithi kadokotela.
Uma ukhetha i-non-line multifocal lens yakho noma yengane yakho, ilensi eyengeziwe eqhubekayo ingase ibe inketho.
Ngakolunye uhlangothi, amalensi aqhubekayo, ane-gradient ebushelelezi futhi engaguquki phakathi kwamandla amalensi ahlukahlukene.Ngalo mqondo, angaphinde abizwe ngokuthi "ama-multifocal" noma "ama-varifocal" lens, ngoba anikeza zonke izinzuzo zamalensi ama-bi- noma ama-trifocal amadala ngaphandle kokuphazamiseka kanye nezinkinga zezimonyo.
Izinzuzo zamalensi aqhubekayo
Ngamalensi aqhubekayo, ngeke udinge ukuba nezibuko ezingaphezu kweyodwa nawe.Awudingi ukushintsha phakathi kokufunda kwakho kanye nezibuko ezijwayelekile.
Umbono onokuthuthuka ungabonakala ungokwemvelo.Uma ushintsha ekubukeni okuthile eduze kokuthile okukude, ngeke uthole "ukweqa" okufana
ungathanda ngama-bifocals noma ama-trifocals.Ngakho uma ushayela, ungabheka kudeshibhodi yakho, emgwaqweni, noma uphawu olukude olunoshintsho olubushelelezi.
Zibukeka njengezibuko ezijwayelekile.Kolunye ucwaningo, abantu ababegqoke ama-bifocal endabuko banikezwa amalensi aqhubekayo ukuze bawazame.Umbhali wocwaningo uthe iningi lenze ushintsho kube kuhle.
Uma uyayazisa ikhwalithi, ukusebenza nokuqamba izinto ezintsha uze endaweni efanele.
I-Index&Material Iyatholakala
 Okubalulekile | NK-55 | I-Polycarbonate | MR-8 | UMR-7 | MR-174 |
 I-Refractive Index | 1.56 | 1.59 | 1.60 | 1.67 | 1.74 |
 Abbe Value | 35 | 32 | 42 | 32 | 33 |
 I-Gravity ethize | 1.28g/cm3 | 1.20g/cm3 | 1.30g/cm3 | 1.36g/cm3 | 1.46g/cm3 |
 I-UV Block | 385nm | 380nm | 395nm | 395nm | 395nm |
 Idizayini | I-SPH | I-SPH | I-SPH/ASP | I-ASP | I-ASP |
 Ama-Coatings Atholakalayo | I-HC/HMC/SHMC | I-HC/HMC | I-SHMC | I-SHMC | I-SHMC |
Ubani Osebenzisa Amalensi Aqhubekayo?
Cishe noma ubani onenkinga yokubona angagqoka lawa lens, kodwa ngokuvamile adingwa abantu abangaphezu kweminyaka engama-40 abane-presbyopia (ukubona kude) -- ukubona kwabo kufiphala lapho benza umsebenzi osondelene njengokufunda noma ukuthunga.Amalensi aqhubekayo angasetshenziselwa izingane, futhi, ukuvimbela ukwanda kwe-myopia (ukubona eduze).
Amathiphu Wokulungisela Amalensi Aqhubekayo
Uma unquma ukuwazama, sebenzisa lawa macebiso:
Khetha isitolo sekhwalithi ye-optical esingakuqondisa kunqubo, sikusize ukhethe uhlaka oluhle, futhi uqiniseke ukuthi amalensi agxile ngokuphelele phezu kwamehlo akho.Izithuthukisi ezingafakwanga kahle ziyisizathu esivamile esenza abantu bangakwazi ukuzivumelanisa nazo.
Zinike isonto elilodwa noma amabili ukuze uzijwayele.Abanye abantu bangase badinge isikhathi esingangenyanga.
Qiniseka ukuthi uyayiqonda imiyalelo kadokotela wakho wamehlo yokuthi usetshenziswa kanjani.
Gqoka amalensi akho amasha kaningi ngangokunokwenzeka futhi uyeke ukugqoka ezinye izibuko zakho.Izokwenza ukulungisa kusheshe.