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Magalasi agalasi
M'masiku oyambirira, chinthu chachikulu cha magalasi chinali galasi la kuwala.Izi zidachitika makamaka chifukwa magalasi agalasi owoneka bwino amakhala ndi kuwala kwambiri, kumveka bwino, komanso njira zopangira zokhwima komanso zosavuta kupanga.Komabe, vuto lalikulu la magalasi agalasi ndi chitetezo chawo.Amakhala ndi vuto losasunthika ndipo ndi osavuta kusweka.Kuonjezera apo, ndi olemetsa komanso osamasuka kuvala, kotero kuti msika wawo wamakono ndi wochepa.
Ma lens a resin
Ma lens a resin ndi magalasi owoneka bwino opangidwa kuchokera ku utomoni monga zopangira, zosinthidwa ndikupangidwa kudzera m'njira zenizeni zamankhwala ndi kupukuta.Pakadali pano, zinthu zomwe zimagwiritsidwa ntchito kwambiri pamagalasi ndi utomoni.Magalasi a utomoni ndi opepuka kulemera kwake poyerekeza ndi magalasi agalasi owoneka bwino ndipo ali ndi mphamvu yolimba kuposa magalasi agalasi, kuwapangitsa kuti asathyoke komanso kukhala otetezeka kugwiritsa ntchito.Pankhani ya mtengo, ma lens a resin nawonso ndi otsika mtengo.Komabe, ma lens a utomoni samatha kukanda bwino, amadzaza ndi okosijeni mwachangu, ndipo amatha kukwapula pamwamba.
Magalasi a PC
Ma lens a PC ndi magalasi opangidwa kuchokera ku polycarbonate (thermoplastic material) omwe amapangidwa ndi kutentha.Izi zidachokera ku kafukufuku wamapulogalamu apamlengalenga ndipo zimadziwikanso kuti ma lens akumlengalenga kapena magalasi akumlengalenga.Chifukwa utomoni wa PC ndi wopangidwa ndi thermoplastic wapamwamba kwambiri, ndiwoyenera kupanga magalasi agalasi.Ma lens a PC ali ndi mphamvu yokana kwambiri, pafupifupi osasweka, ndipo ndi otetezeka kugwiritsa ntchito.Pankhani ya kulemera, iwo ndi opepuka kuposa magalasi a utomoni.Komabe, ma lens a PC amatha kukhala ovuta kuwakonza, kuwapangitsa kukhala okwera mtengo.
Zida Zoyenera kwa Okalamba
Kwa okalamba omwe ali ndi vuto la presbyopia, tikulimbikitsidwa kusankha magalasi agalasi kapena ma lens a resin.Presbyopia imafuna magalasi owerengera opanda mphamvu, kotero kulemera kwa magalasi sikodetsa nkhawa kwambiri.Kuphatikiza apo, okalamba nthawi zambiri sagwira ntchito, kumapangitsa magalasi agalasi kapena ma lens olimba kwambiri kuti asakandane, komanso kuwonetsetsa kuti kuwala kwanthawi yayitali.
Zida Zoyenera Kwa Akuluakulu
Ma lens a resin ndi oyenera azaka zapakati komanso achinyamata.Ma lens a utomoni amapereka zosankha zingapo, kuphatikiza kusiyanitsa kutengera refractive index, magwiridwe antchito, ndi malo okhazikika, motero amakwaniritsa zosowa zosiyanasiyana zamagulu osiyanasiyana.
Nkhani Yoyenera kwa Ana ndi Achinyamata
Posankha magalasi a ana, makolo akulangizidwa kuti asankhe magalasi opangidwa ndi PC kapena Trivex zipangizo.Poyerekeza ndi mitundu ina ya magalasi, zidazi sizopepuka zokha komanso zimapereka kukana kwamphamvu komanso chitetezo chapamwamba.Kuphatikiza apo, ma lens a PC ndi Trivex amatha kuteteza maso ku kuwala koyipa kwa UV.
Magalasi awa ndi olimba kwambiri komanso osasweka mosavuta, motero amatchedwa magalasi oteteza.Kulemera magilamu 2 okha pa kiyubiki centimita, ndi zinthu zopepuka zomwe zimagwiritsidwa ntchito ngati magalasi.Sikoyenera kugwiritsa ntchito magalasi agalasi pamagalasi a ana, chifukwa ana amakhala achangu komanso magalasi amatha kusweka, zomwe zitha kuvulaza maso.
Pomaliza
Makhalidwe azinthu zamagalasi opangidwa kuchokera kuzinthu zosiyanasiyana ndizosiyana kwambiri.Magalasi agalasi ndi olemetsa ndipo ali ndi chitetezo chochepa, koma ndi osagwirizana ndi zokanda ndipo amakhala ndi nthawi yayitali yogwiritsidwa ntchito, kuwapangitsa kukhala oyenera kwa okalamba omwe ali ndi masewera olimbitsa thupi ochepa komanso presbyopia yofatsa.Ma lens a resin amabwera mosiyanasiyana ndipo amapereka magwiridwe antchito athunthu, kuwapangitsa kukhala oyenera kuphunzira komanso ntchito zosiyanasiyana za azaka zapakati ndi achinyamata.Pankhani ya magalasi a maso a ana, chitetezo chapamwamba ndi kupepuka kumafunika, kupanga magalasi a PC kukhala abwinoko.
Palibe zinthu zabwino kwambiri, koma chidziwitso chosasinthika cha thanzi la maso.Posankha magalasi opangidwa ndi zinthu zosiyanasiyana, tiyenera kuganizira mmene wogula amaonera, pokumbukira mfundo zitatu za mmene magalasi amayendera: chitonthozo, kulimba, ndi kukhazikika.
Nthawi yotumiza: Jan-08-2024