Ezi glasi zokufunda ziyimfuneko kubasetyhini abaxabisa zombini ukusebenza kunye nesitayela. Ukuhambelana kombala wayo ocacileyo yenye yezona ndawo ziphambili zokuthengisa, ukufikelela kwinqanaba eliphezulu lokungafihli nto leyo enciphisa ngokufanelekileyo imbonakalo yelensi kwaye iphucule ukucaca okubonakalayo komntu oyinxibileyo. Uyilo olujikelezileyo olunefashoni kunye nolucokisekileyo longeza ubumnandi kolu ncedo olubonakalayo, luyenza ibe yinto enokunxitywa kuyo nayiphi na imeko. Iiglasi zenziwe ngononophelo ukuze zincedise ubuhle besifazane kwaye zibonise abafazi abancinci nabaqolileyo.
Iqinisekisa intuthuzelo kunye nokuqina kunye nezixhobo zayo eziphezulu ze-lens kunye noyilo lomlenze wesibuko oluguquguqukayo olungena ngokugqibeleleyo ebusweni. Ngokhetho lwemibala emininzi, abafazi banokukhetha umbala ohambelana kakhulu nesitayile sabo somntu. Lilonke, ezi glasi zokufunda yindibaniselwano egqibeleleyo yokudibana kombala ocacileyo, umoya omhle, intuthuzelo, kunye nokusebenza. Lukhetho oluhle kakhulu kubasetyhini abafuna ukuhlala besitayile kwaye bezithembile ngelixa begcina ukucaca okubonakalayo.