● Letoto la lilense tsa boleng bo holimo le akaretsa hoo e batlang e le lilense tsohle tse nang le litlamorao tse fapaneng tsa pono ho index ea refractive: single vision, bifocal and progressive lenses, hape e akaretsa lihlopha tsa lihlahisoa tse felileng le tse seng li felile, tse ka khahlanyetsang litlhoko tsa batho ba bangata ba nang le lerootho. pono. Tokiso ea ho kheloha pono.
● Li fumaneha ka thepa e sa tšoaneng, ho akarelletsa le resin, polycarbonate le thepa e phahameng haholo, e fanang ka maemo a sa tšoaneng a botenya, boima ba 'mele le ho tšoarella nako e telele. Lilense kaofela li fumaneha hape ka lirafshoa tse fapaneng, joalo ka liphaephe tse thibelang ponahalo ea sefahleho ho fokotsa ho benya le ho ntlafatsa pono e hlakileng, kapa lirafshoa tsa UV ho sireletsa mahlo mahlaseling a kotsi a ultraviolet. Li ka etsoa ka mefuta e fapaneng ea liforeimi 'me li ka sebelisoa e le likhalase tsa ho bala, likhalase tsa letsatsi, kapa ho lokisa pono e hole.