Pali enanthano wambaza magalasi owerengera.
Imodzi mwa nthano zodziwika bwino: Kuvala magalasi owerengera kumapangitsa kuti maso anu afooke.Izo si zoona.
Nthano inanso: Kuchitidwa opaleshoni ya ng'ala kudzakonza maso anu, kutanthauza kuti mutha kusiya magalasi owerengera.Izinso sizowona.mutha kukhala ndi vuto la masomphenya lomwe silingakonzedwe ndi magalasi owerengera.
Ndiyeno pali lingaliro lakuti magalasi owerengera amapangitsa kuti wovalayo aziwoneka wokalamba.Akatswiri osamalira maso amatsutsa zimenezo ngati njira yakale yoyang'ana magalasi owerengera, makamaka poganizira kuti anthu a ku America oposa 150 miliyoni amavala magalasi owongolera maso.
Kodi magalasi owerengera ndi chiyani?
Magalasi owerengera, omwe amapezeka m'masitolo ogulitsa kapena olembedwa ndi dokotala, amakulitsa luso lowerengera zinthu chapafupi, monga buku kapena kompyuta.
Magalasi owerengera - omwe amatha kugulidwa m'masitolo ogulitsa mankhwala, masitolo akuluakulu ndi ogulitsa ena popanda mankhwala - amapangidwa kuti azivala kwakanthawi kochepa, ndipo ndi oyenera kwambiri kwa anthu omwe ali ndi mphamvu yofanana ya lens, kapena mphamvu, mu diso lililonse ndipo alibeastigmatism, chikhalidwe chofala chomwe chimayambitsakusawona bwino.
Mphamvu ya magalasi a magalasi owerengera pa kauntala nthawi zambiri imachokera ku +1 mpaka +4. Magalasi owerengera pa kauntala ndi njira yovomerezeka kwa anthu omwe ali ndi maso patali (kuyang'ana patali).
Komabe, ngati mukuvutikakompyuta eyestrainkapenamasomphenya awiri, ndiye kuti ndi bwino kufufuza magalasi owerengera olembedwa ndi dokotala.
Magalasi owerengera omwe adalembedwa ndi dokotala amapangidwa kuti azivala kwa nthawi yayitali, ndipo ndi abwino kwa anthu omwe ali ndi vuto la astigmatism, myopia, vuto lalikulu lamaso kapena mphamvu zosagwirizana ndi malangizo padiso lililonse.
Ndi liti pamene mukufuna magalasi owerengera?
Pafupifupi aliyense wazaka 40 ndi kupitirira apo, panthawi ina, adzafunika magalasi owerengera (kapena mtundu wina wa kuwongolera masomphenya).
Magalasi owerengera amathandiza kubwezera kuchepa kwa maso okhudzana ndipresbyopia, kutayika kwachibadwa kwa msinkhu wokhoza kuyang'ana pa zinthu zapafupi, monga mawu a m'buku kapena meseji pa foni yamakono.
Nthawi zambiri mumazindikira kufunika kowerenga magalasi ngati mukukumana ndi vuto lowerenga zilembo zazing'ono mukamatopa komanso kuyatsa m'chipindamo kuli kocheperako, kapena ngati mukuwona kuti ndikosavuta kuwerenga chinthu mukachikokera kutali pang'ono ndi nkhope yanu. .
Kutengera magulu osiyanasiyana ndi zofuna, Universe Optical imapanga magalasi ambiri owoneka bwino m'ma index onse ndi zida zosiyanasiyana, mutha kukhulupirira nthawi zonse ndikusankha galasi yoyenera kwambiri.