_{Fektheri ea VR}

Likhalase tsa letsatsi tsa Bifocal ke likhalase tse khotsofatsang litlhoko tsohle tsa hau tsa pono. Se ikhethang ka likhalase tsena ke hore li fana ka pono ea hole le pono e haufi, e leng se etsang hore lefatše la hau le hlake haholoanyane. Ebang u bala koranta kapa u shebeletse libaka tse hole, likhalase tsena li ka u fa pono e ntle ka ho fetisisa.

Moralo oa foreimi ea setaele
Moralo oa foreimi ea likhalase tsa letsatsi tse bifocal o fesheneng ebile o ikhethile, o loketse batho ba lilemo tsohle le ba bong bo fapaneng. Ho sa tsotellehe hore na u monyenyane kapa u lilemong tse bohareng, u ka fumana mokhoa oa hau ka likhalase tsena. Moqapi ona o etsa hore likhalase li se ke tsa e-ba feela thuso ea pono, empa e le lisebelisoa tsa feshene tse u lumellang hore u bontše botho ba hau ha u ntse u li apara.

E kopantsoe le likhalase tsa letsatsi
Lilense tsa likhalase tsa bifocal ha li khotsofatse litlhoko tsa hau tsa pono feela empa li boetse li sireletsa mahlo a hau mahlaseling a UV. Ka ntle ho khanya ea letsatsi e matla, likhalase tsena li ka u fa tšireletso e ntle ka ho fetisisa ea pono, e u lumellang ho sireletsa mahlo a hao ha u ntse u thabela mesebetsi ea ka ntle.

E ts'ehetsa ho tloaeleha ha likhalase tsa LOGO le mokhoa oa ho etsa liphutheloana tsa kantle
Rea tseba hore motho e mong le e mong o ikhethile, ka hona, re fana ka likhalase tsa Logoo ka ho khetheha le lits'ebeletso tsa ho etsa liphutheloana tsa kantle. U ka iketsetsa likhalase tsa hau tsa ho bala tsa letsatsi ho latela seo u se ratang le litlhoko tsa hau. Ts'ebeletso ena e etsa hore likhalase li be tsa motho ka mong le hore li tšoanele litlhoko tsa hau hamolemo.

Likhalase tsa ho bala letsatsi tsa Bifocal ke likhalase tse kopanyang feshene le ts'ebetso. Hase feela hore e finyella litlhoko tsa hau tsa pono, e boetse e fana ka tšireletso e ntle ka ho fetisisa ea pono. Ts'ebeletso ea eona ea ho iketsetsa motho ka mong e boetse e u lumella ho ba le likhalase tsa hau tse ikhethang. Haeba u batla likhalase tse sebetsang le tse setaele, likhalase tsa letsatsi tsa bifocal ke khetho ea hau e ntle ka ho fetisisa.