_{Fektheri ea VR}

Likhalase tsa ho bala letsatsi tsa Bifocal: motsoako o phethahetseng oa feshene le ts'ebetso

Likhalase tsa bifocal sun reading ke likhalase tse kopanyang litlhoko tsa ho bonela hole le myopia le tšebetso ea likhalase tsa letsatsi. Ponahalo ea eona ha ho pelaelo hore e fana ka khetho e nepahetseng bakeng sa batho ba phehellang feshene le mokhoa o sebetsang. Ntho e ikhethang ea para ena ea likhalase ke hore e sebelisa moralo oa lense ea bifocal, e u lumellang ho fihlela litlhoko tsa hau tsa pono libakeng tse telele le tse haufi, ho felisa bothata ba ho fetola likhalase khafetsa.

Likaroloana
Lilense tsa Bifocal: Ntlha e kholo ka ho fetisisa ea likhalase tsena tsa ho bala letsatsi ke moralo oa eona oa lense ea bifocal, e ka khotsofatsang litlhoko tsa hau tsa pono e hōle le myopia ka nako e le 'ngoe, e u lumellang ho bona libaka tse hōle kapa ho bala mongolo o haufi. , e ka boloka phihlelo ea pono e hlakileng le e phutholohileng.

Ts'ebetso ea likhalase tsa letsatsi: Moqapi oa lilense, re boetse re kopantse mesebetsi ea likhalase tsa letsatsi, tse ka thibelang mahlaseli a ultraviolet ka katleho le ho sireletsa mahlo a hao khanyeng e matla, ho u lumella ho phutholoha ha u etsa mesebetsi ea ka ntle, ebang ke letsatsi kapa le koahetsoe ke maru. E ka boloka boiphihlelo bo botle ba pono.

Moralo oa foreimi e kholo: Mabapi le moralo oa setaele, re nka moralo o moholo oa foreimi, o ke keng oa amohela lilense tsa bifocal hantle feela mme oa etsa hore u ikutloe u phutholohile ha u li apara empa hape o eketsa maikutlo a hau a feshene, a etsa hore u phutholohe haholoanyane ha u li apara. Khahleho ea botho.

Ts'ebeletso ea ho itloaetsa: Re boetse re fana ka lits'ebeletso tse ikhethileng bakeng sa likhalase tsa LOGO le liphutheloana tsa kantle, e le hore u ka bonts'a botho ba hau le tatso ea hau ha u reka lihlahisoa tsa rona.

Akaretsa
Likhalase tsa letsatsi tsa Bifocal ke sehlahisoa se kopanyang ts'ebetso le feshene. Ha li finyelle feela litlhoko tsa hau tsa pono e hōle le myopia, empa hape li sireletsa mahlo a hao khanyeng e matla, e u lumellang ho etsa mesebetsi ea ka ntle. E ka boela ea boloka phihlelo e ntle ea pono. Re boetse re fana ka lits'ebeletso tse ikhethileng e le hore ha u roala likhalase tsa rona, u se ke ua bonts'a botho ba hau feela le tatso ea hau, empa hape u bonts'a ho hahamalla ha hao boleng ba bophelo.