Budiriro lenses

Vanhu Most pashure pemakore makumi mana vane zvinetso pfungwa maonero ake, ikabereka ari pedyo akareba. Ichi chirwere inonzi presbyopia. Uyewo isu vanoziva nayo sezvakaitwa zera Kuona zviri mberi. Varwere hyperopia, kusvikira nguva dambudziko haisi kushandisa kubatsira magirazi, vane kutenga ndinoiitawo-izvo. Myopic, nechirwere myopia, vanofanira kuisa chiratidzo pamusoro pfupi akareba ari kubvisa pfungwa iri.

Presbyopia kunoratidzwa mano kugara kunoita uye kunosvika kufadza kwokuratidzwa yayo makumi matanhatu kana makumi matanhatu nemashanu. Kure uko chinhu zvinoonekwa pachena, zvishoma nezvishoma inowedzera. Munguva pfupi iri kutevera zvinoda kutenga imwe peya ekuverengesa. Vanofanira kuona dzimwe madaro zvinopfuura makumi mana kusvika makumi mashanu masendimita. Vamwe varwere wana matatu kana mana yegwara magirazi, izvo zvinoshandiswa ezvinhu akasiyana. Vamwe - nokuti kuverenga, mumwe - nokuti kombiyuta yako, uye vamwe - kutinhisa, uye zvichingodaro.

Progressive magirazi ndivo ichangobva chishandiso zvakagadzirirwa kururamisa presbyopia. chinangwa chavo chikuru zvingangoguma chiratidzo zvinhu zvakasiyana akareba. Progressive lenses vari multifocal mazviri. Vari rakakamurwa sectors akawanda.

Progressive lenses ayo repamusoro munzvimbo rakagadzirirwa kuona zvinhu zviri kure mumaziso. Kuvapo kwemauto ichi inobvumira kutarisa mberi, apo kuramba chaiwo chinzvimbo musoro. Rezasi chikamu izvo ichi rakagadzirirwa chiratidzo pedyo akareba. Kurishandisa, tarisa kutura pasi. Pakati okumusoro mapazi pane musiyano pakati dioptric simba, yainzi wedzera simba. Kazhinji asingadi kupfuudza diopters maviri kana matatu. Between zvikamu iri kunoita koridho. simba rayo Manyiminya Kuchinja zvakanaka, vachibvumira iwe kupa nechiono chakajeka zvinhu panguva unosvikirwa akareba. Progressive lenses kumativi kusango havasi arongera kuona nokuda dzakakomba Manyiminya kusarurama.

Modern magirazi avo zvakanaka, kunyange vamwe zvainovhiringidzawo. Progressive lenses, izvo wongororo anoratidza mukana chiratidzo chakanaka zvinhu zvakasiyana marefu, kubvumira chimwe chete peya ekuverengesa. Vanogona kuverenga, basa pane imwe kombiyuta tarisisa, uende yemitambo uye kuti kushandisa muchina. Progressive lenses musapa unopinza kusvetuka mumufananidzo panguva apo maonero rinoshandurwa kubva zvinhu kure kusvika pedo, nemhaka kunoita mukoridho.

Unorema vagadziri anopa magirazi ano yakagadzirwa Kwakashandiswa micheka uye vakatengesa muzvikwata mutengo zvakasiyana. Somuenzaniso, mberi lenses zvinogona kugadzirwa kubva girazi uye epurasitiki. Vangave photochromic uye aspheric magadzirirwo.

Rinonyatsooneka drawback kunoenderera mberi magirazi User inofambiswa, anogona kunzi munhu duku nzvimbo akachengeterwa kukurukura zvinhu panguva svikiro marefu, uyewo nemauto pamusoro peripheral kusarurama.