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1.56 I-Blue cut Progressive Photochromic Grey HMC iilensi ze-Optical
Iiglasi eziqhubela phambili ze-multifocal zayilwa kwiminyaka engama-61 eyadlulayo. Iiglasi ezininzi zayisombulula ingxaki yokuba abantu abaphakathi kunye nabantu abadala badinga ukukhanya okwahlukileyo ukuze babone izinto ezikumgama ohlukeneyo kwaye kufuneka batshintshe iiglasi rhoqo. Iperi yeglasi ibona kude, intle, kananjalo inokubona kufutshane. Ukutshatisa iiglasi ezininzi yiprojekthi ecwangcisiweyo, efuna itekhnoloji eninzi kakhulu kunokudibanisa iiglasi ze-monocal. Oogqirha bamehlo abafuni nje ukuqonda i-optometry, kodwa kufuneka baqonde iimveliso, ukusetyenzwa, uhlengahlengiso lwesakhelo sesipili, umlinganiselo wokugoba kobuso, i-engile yangaphambili, umgama wamehlo, umgama womfundi, ubude bomfundi, ukubalwa kokutshintsha kweziko, inkonzo yasemva kokuthengisa, ubunzulu. ukuqonda imigaqo-nkqubo egxile kwizinto ezininzi, izinto eziluncedo nezingeloncedo, njalo njalo. Yingcali ebanzi kuphela enokuqwalasela ngokubanzi abathengi, ukuze batshatise iiglasi ezichanekileyo ezininzi.
