1.59 PC Blue Block Progressive Lens
Ithetha ntoni iPolycarbonate Lens?
I-polycarbonate lens yilensi eyenziwe ngepolymer ye-thermoplastic yeqela le-carbonate. Imalunga namaxesha ali-10 axhathisayo kuneeplastiki eziqhelekileyo okanye iilensi zeglasi. Iilensi zePolycarbonate zikhethwa ngaphezu kweelensi zeglasi ngabasebenzisi beempahla zamehlo, abadlali bezemidlalo kunye nabanye abasebenzisi bamehlo ngenxa yobunzima bayo, i-ultra violet (UV) kunye neempawu zokumelana nempembelelo.
I-Polycarbonate yafunyanwa ngo-1953 kwaye yaqala ukwaziswa kwimarike ngo-1958. Ngeminyaka yoo-1980 amashishini aqala ukusebenzisa i-polycarbonate njengenye indlela yeplastiki eqhelekileyo okanye eyewear eyeglasi. Iilensi zePolycarbonate lukhetho olunobulumko kwabo basebenzayo kwezemidlalo, iindawo ezinobungozi zemisebenzi, kwiimpahla zamehlo zefashoni ngakumbi kubantwana.
Iilensi zeplastiki eziqhelekileyo zisebenzisa inkqubo yokubumba, ngelixa iipellets ze-polycarbonate zifudunyezwa kwindawo yokunyibilika kwaye zitofwe kwi-lens molds. Yenza iilensi zepolycarbonate zomelele kwaye zikwazi ukumelana nefuthe. Nangona kunjalo, ezi lens azikwazi ukumelana nemikrwelo kwaye, ke ngoko, zifuna i-coating ekhethekileyo.
Yintoni iiLensi eziqhubela phambili?
Iilensi eziqhubela phambili ziyinyani "i-multifocal" iilensi ezibonelela ngenani elingenasiphelo lamandla e-lens kwiperi enye yeglasi. Umbono ongcono kakhulu uqhuba ubude belensi ukuvumela ukuba umgama ngamnye ucace:
Phezulu kwelensi: ilungele ukubona umgama, ukuqhuba, ukuhamba.
Umbindi welensi: ilungele umbono wekhompyuter, imigama ephakathi.
Ezantsi kwelensi: ilungele ukufunda okanye ukugqiba eminye imisebenzi esondeleyo.
Ngubani ofuna iiLensi eziqhubelekayo?
Njengoko sikhula, kuba nzima ngakumbi ukujonga izinto ezikufutshane namehlo ethu. Le yimeko eqhelekileyo ebizwa ngokuba yi-presbyopia. Uninzi lwabantu luqala ukuqaphela xa benengxaki yokufunda ukuprinta kakuhle, okanye xa beqaqanjelwa yintloko emva kokufunda, ngenxa ye-eyestrain.
I-Progressives yenzelwe abantu abafuna ukulungiswa kwi-presbyopia, kodwa abafuni umgca onzima phakathi kweelensi zabo.
Izibonelelo zeeLensi eziqhubela phambili
Ngeelensi eziqhubelekayo, awuzukufuneka ube neeglasi ezingaphezulu kwesinye. Awudingi ukutshintshana phakathi kokufunda kwakho kunye neeglasi eziqhelekileyo.
Umbono onenkqubela phambili ungabonakala ungokwemvelo. Ukuba uyatshintsha ekujongeni into ekufutshane nento ekude, awuyi kufumana "tsiba" njengoko ubuya kwenza nge-bifocals okanye i-trifocals.
Ukungaphumeleli kweeLensi eziqhubela phambili
Kuthatha iiveki ezi-1-2 ukuqhelanisa neprogressives. Kufuneka uziqeqeshe ukujonga kwindawo esezantsi yelensi xa ufunda, ujonge ngqo phambili umgama, kwaye ujonge kwindawo ethile phakathi kweendawo ezimbini zomgama ophakathi okanye umsebenzi wekhompyuter.
Ngexesha lokufunda, unokuziva unesiyezi kunye nesicaphucaphu ngokujonga kwicandelo elingelilo lelensi. Kusenokubakho ukugqwetheka kombono wakho weperipheral.
Udinga iperi yeeLensi eziPhuhlayo eziAnti-blue
Njengoko izibane eziluhlaza okwesibhakabhaka kule mihla zikuyo yonke indawo, iiLensi zeProgressive ezichasene neblue zifanelekile kwimisebenzi yangaphakathi, njengokubukela iTV, ukudlala kwikhompyuter, ukufunda iincwadi kunye nokufunda amaphephandaba, kwaye zilungele ukuhamba ngaphandle, ukuqhuba, ukuhamba kunye nokunxiba kwemihla ngemihla unyaka wonke.
