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  • 1.59 PC Bifocal Photochromic Gray HMC muraayadaha indhaha

    1.59 PC Bifocal Photochromic Gray HMC muraayadaha indhaha

    Waqtigan xaadirka ah, waxaa jira laba nooc oo ah qalabka muraayadaha ee suuqa, mid waa walxo dhalada ah, kan kalena waa maaddada resin. Qalabka xabagta ayaa loo qaybiyaa CR-39 iyo polycarbonate (wax PC).

    Muraayadaha bifocal ama lenses bifocal waa muraayado ka kooban laba goobood oo sixid isku mar ah waxaana inta badan loo isticmaalaa in lagu saxo presbyopia. Meesha fog ee lenska laba-geesoodka ah lagu saxo waxa lagu magacaabaa aagga fog, aagga u dhowna waxa loo yaqaannaa aagga u dhow iyo goobta akhriska. Sida caadiga ah, gobolka fogfog waa weyn yahay, sidaas darteed waxaa sidoo kale loo yaqaan filimka ugu weyn, iyo gobolka u dhow waa yar yahay, sidaas darteed waxaa loo yaqaan 'sub-film'.