Iindaba
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Indlela yokwahlula i-lens yeglasi kwi-resin lens?
1. Iimathiriyeli ezahlukeneyo zekrwada Eyona nto iphambili yelensi yeglasi yiglasi yokukhanya; I-resin lens yimathiriyeli ephilayo ene-polymer chain structure ngaphakathi, edibeneyo ...Funda ngokugqithisileyo -
Isipili seBifocal
Xa uhlengahlengiso lwamehlo omntu lubuthathaka ngenxa yobudala, kufuneka alungise umbono wakhe ngokwahlukileyo kumbono okude nokufuphi. Ngeli xesha, uhlala efuna ...Funda ngokugqithisileyo