1. Ukuzalisekisa iimfuno zombono osondeleyo nokude
Ngoyilo lwazo olulodwa, ezi zibuko zelanga ze-bifocal zijongana ngokufanelekileyo neemfuno ze-myopia kunye ne-hyperopia malunga nokulungiswa kombono. Ngezi glasi, unokulibona ihlabathi ngokucacileyo kungakhathaliseki ukuba ukufutshane kangakanani na okanye ukubona kude.
2. Uyilo oluguquguqukayo kunye nolwakudala lwesakhelo.
Olu hlobo lwempahla yamehlo lunoyilo lwesakhelo se-retro yesiqhelo ekumgangatho ophantsi, ephantsi, kwaye ifanelekile kwiimilo zobuso ezininzi. Ungasifumana esakho isitayile kwezi glasi nokuba umncinci okanye uphakathi.
3. Bandakanya ukuhlanganiswa kweglasi yelanga
Esi sibini seeglasi zokufunda ilanga ze-bifocal zinokukhusela ngempumelelo amehlo akho kwimitha ye-UV ukongeza ekuhlangabezaneni neemfuno zakho zombono xa usetyenziswa kunye neendondo zelanga. Ungayigcina impilo yamehlo akho ngelixa usenombono omkhulu.
4. Ukulungelelanisa ukupakishwa kwangaphandle kunye nelogo
Ukwanelisa iimfuno zakho ezithile, sinikezela ngeenkonzo zokulungisa ukupakishwa kwangaphandle kunye ne-LOGO yeendondo. Le yindlela onokuthi wenze ngayo iiglasi zakho okanye inkampani yakho.
5. Iqinile, yenziwe ngeplastiki yeprimiyamu
Ezi glasi zelanga ze-bifocal zikhaphukhaphu, zihlala ixesha elide, kwaye zenziwe ngeplastiki yeprimiyamu, izenza zilungele yonke imihla kunye nokunxiba okwandisiweyo. Awunakukhathazeka malunga neeglasi zakho ezigugayo ngenxa yolwakhiwo oluqinileyo.
Izinto eziza nezi glasi zelanga ze-bifocal zidweliswe ngasentla. Sizinikezele ekukuboneleleni ngeendondo ezizalisekisa iimfuno zakho ngelixa sikwazalisekisa iimfuno zamehlo akho kwaye sinikezela ngeempawu zokukhusela amehlo.