Re thabetse ho hlahisa sehlahisoa sa rona se secha ka ho fetesisa, likhalase tsa acetate clip-on. Sephutheloana sena se na le likhalase tsa boleng bo holimo tsa acetate frame optical hammoho le para ea likotoana tsa letsatsi tsa makenete, tse u fang menyetla e mengata ea ho bapisa. Li-hinges tsa tšepe tsa tšepe li sebelisoa ka har'a foreimi ea likhalase tsa mahlo, ho etsa hore e be bonolo le ho tiea. Sekoaelo sa letsatsi se na le ts'ireletso ea UV400, e sireletsang mahlo a hau ka nepo likotsing tse bakiloeng ke mahlaseli a ultraviolet le khanya e matla.

Taba ea pele, a re hlahlobeng foreimi ea li-clip-on spectacles tsena. E entsoe ka thepa ea boleng bo holimo ea acetate, e tšoarellang le e phutholohileng. Foreimi ena e loketse ts'ebeliso ea letsatsi le letsatsi le ea lipapali. Ntle le moo, re fana ka LOGO ea bokhoni bo boholo le mokhoa oa ho paka oa likhalase ho thusa khoebo ea hau ho hlahella.

Taba ea bobeli, likhalase tsa rona tsa mahlo li tla le lilense tsa letsatsi tsa makenete ka mebala e mengata, tse ka bapisoang habonolo le foreimi ho u etsetsa mefuta e meng. Moqapi ona ha o bonolo feela ho o nkela sebaka, empa o boetse o finyella litlhoko tsa hau maemong a sa tšoaneng, ho u lumella hore u be feshene ka linako tsohle.

Ho feta moo, lipono tsa rona li kenyelletsa li-hinges tsa tšepe tsa selemo, tse etsang hore li be monate ho apara. E ka lula e tiile 'me e sa khone ho thella le ha e aparoa ka nako e telele kapa nakong ea lipapali. Moqapi ona o nahanela boiketlo le ts'ebetso ea mosebedisi, ho u lumella ho thabela mesebetsi ea ka ntle.

Qetellong, lilense tsa rona tsa letsatsi li kenyelletsa tšireletso ea UV400, e sireletsang mahlo a hau ka katleho liphellong tse kotsi tsa mahlaseli a ultraviolet le khanya e matla. Ho sa tsotellehe hore na u bapala lipapali tsa ka ntle kapa u ntse u iphelisa, likhalase tsena tsa letsatsi li ka u fa tšireletso ea hohle, kahoo ha ho hlokahale hore u tšoenyehe.

Ka bokhutšoanyane, mokotla oa rona oa likhalase tsa likhalase tsa mahlo tsa boleng bo phahameng ha o fane feela ka boleng bo ikhethang le matšeliso, empa o boetse o finyella litlhoko tsa hau tse fapaneng. Hore na o hloka ho itlhophisa ka mokhoa o ikhethileng kapa khetho ea likhetho tse tsamaellanang, re ka u fa tharollo e molemohali. Khetha lihlahisoa tsa rona ho netefatsa hore mahlo a hau a lula a hlakile ebile a phetse hantle.