01 Ukongezelela, umatshini wokuguqula i-manual ufumana isicelo ekulungiseni nasekuhlaziyweni kwee-eyewear ezikhoyo. Ngokuhamba kwexesha, imiphetho yeelensi inokuqhekeka okanye ikrweleke, nto leyo echaphazela ukunethezeka kwalowo uzinxibileyo kunye nomgangatho wokubona. Ukusebenzisa umatshini wokuhlela owenziwe ngesandla, iingcali ziyakwazi ukubuyisela iilensi kwimeko yazo yangaphambili, zandise ixesha lokuphila kwamehlo.
Ngaphezu koko, lo matshini uxabiseke kakhulu kwi-customization of eyewear. Abathengi abaneemfuno zokubonwayo ezithile okanye iimilo zobuso ezizodwa bahlala befuna iilensi ezilungiselelwe wena. Umatshini wokuhlela owenziwe ngesandla uvumela amagcisa ukuba agaye ngokuchanekileyo imiphetho yelensi, eqinisekisa ukufaneleka ngokugqibeleleyo kunye nokuthuthuzela okufanelekileyo kulowo uyinxibileyo.
Ngaphandle kokusetyenziswa kwayo okusebenzayo, umatshini wokuguqula i-manual usebenza njengesixhobo sokufunda kwimfundo ye-optical kunye noqeqesho. Abafundi kunye nabafundi banokufumana amava okusebenza kwi-lens yokusila, baphucule izakhono zabo kunye nokuqonda inkqubo yokwenziwa kwamehlo.