Nalane ea likhalase tsa letsatsi e ka saloa morao ho fihla ho 14th-century China, moo baahloli ba neng ba sebelisa likhalase tse entsoeng ka quartz e tsubang ho pata maikutlo a bona. Lilemo tse 600 hamorao, rakhoebo Sam Foster o ile a qala ka ho hlahisa likhalase tsa letsatsi tsa sejoale-joale joalo ka ha re li tseba kajeno Atlantic City. Ho tloha ka nako eo, Letsatsi la Likhalase tsa Letsatsi le etsahala selemo se seng le se seng ka June 27. Liketsahalo tsa selemo le selemo li ikemiselitse ho phatlalatsa tlhokomeliso ka bohlokoa ba ho roala likhalase tsa letsatsi bakeng sa tšireletso ea mahlaseli a kotsi.
Ke hobane’ng ha tšireletso ea letsatsi e hlokahala ’me e le ea bohlokoa bophelong ba letsatsi le letsatsi?
Mahlaseli a UV a ka ntša mahlo a hao kotsi. Ho pepeseha ha bona ho ka etsa hore o tshwarwe ke lera la mahlo dilemong tse 8-10 pele ho nako e tlwaelehileng. Nako e le 'ngoe feela ea nako e telele letsatsing e ka baka ho teneha ho bohloko haholo ho li-cornea tsa hau. Ho na le melemo e mengata ea lilense tse nang le ts'ireletso ea UV ea 100% ho feta kamoo u nahanang. Nakong e tlang ha u apara li-shades tseo u li ratang, u ka sebelisa monyetla oa tse latelang:
1.Tshireletso khahlanong le mahlaseli a UVA le UVB
2. Phokotso ea khanya
3.Relief ho tsoa khatellong ea mahlo
4.Aid ho thibela ho senyeha ha macular, cataracts le mafu a mang a mahlo
5.Tshireletso khahlanong le kankere ea letlalo sebakeng se potolohileng mahlo
6.Shade ho tloha letsatsing le khanyang, le ka thibelang hlooho
7.Tshireletso linthong tse ka ntle tse kang litšila, lithōle le moea
8. Thibelo ea wrinkles
Nka tseba joang haeba likhalase tsa letsatsi li na le tšireletso ea UV? Ka bomalimabe, ha ho bonolo ho tseba hore na likhalase tsa hau li na le lilense tse sireletsang UV ka ho li sheba feela. Hape u ke ke ua khetholla palo ea tšireletso e ipapisitseng le 'mala oa lense, kaha masela a lense ha a amane le tšireletso ea UV. Litlhahiso tse 'maloa ke tsena ha u khetha liaparo tsa mahlo tse sireletsang letsatsi:
• Batla leibole sehlahiswang sa sebele kapa tlhalosong ya sephuthelwana sa bona e netefatsang tshireletso ya 100% UVA-UVB kapa UV 400.
• Nahana ka mokhoa oa hau oa bophelo le mesebetsi ea hau ha u etsa qeto ea hore na u batla likhalase tsa mahlaseli tsa polarized, kapa lense ea photochromic kapa likarolo tse ling tsa lense.
• Tseba hore lense e lefifi ha e fane ka tšireletso e eketsehileng ea UV
Universe Optical e ka lula e fana ka thuso le tlhaiso-leseling bakeng sa ts'ireletso e felletseng mahlong a hau. Ka kopo, tobetsa leqepheng la rona https://www.universeoptical.com/stock-lens/ho fumana likhetho tse ling kapa ikopanye le rona ka kotloloho.