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Iilensi ze-HMC Optical ezi-1.56 ezisikiweyo eziluhlaza okwesibhakabhaka eziphucukileyo ze-Photochromic Gray
Iiglasi eziqhubekekayo ezineefocal ezininzi zaqanjwa kwiminyaka engama-61 eyadlulayo. Iiglasi ezibanzi zasombulula ingxaki yokuba abantu abaphakathi nabadala bafuna ukukhanya okwahlukileyo ukuze babone izinto kumgama owahlukileyo kwaye kufuneka batshintshe iiglasi rhoqo. Iiglasi ezimbini zinokubona kude, zintle, zikwanokubona kufutshane. Ukuthelekiswa kweeglasi ezibanzi yiprojekthi ecwangcisiweyo, efuna ubuchwepheshe obungaphezulu kunokuthelekiswa kweeglasi ezibanzi. Iingcali zamehlo azidingi nje ukuqonda i-optometry, kodwa kufuneka ziqonde iimveliso, ukucubungula, ukulungiswa kwesakhelo sesibuko, ukulinganiswa kokugoba kobuso, i-Angle phambili, umgama wamehlo, umgama womfundi, ukuphakama komfundi, ukubalwa kotshintsho oluphakathi, inkonzo emva kokuthengisa, ukuqonda okunzulu kwemigaqo yokugxila okuninzi, izibonelelo kunye nokungalungi, njl. Yingcali ebanzi kuphela enokuyiqwalasela ngokupheleleyo kubathengi, ukuze ifane neeglasi ezifanelekileyo ezineefocal ezininzi.
