Magirazi yakabvooka - tinotarisira sei?

Pinhole magirazi, kana magirazi yakabvooka, maererano vagadziri, muri nomurovedzi kuti chiratidzo kururamiswa. Anogona kuchinja uye myopia uye hyperopia. Manufacturers uyewo kuvimbisa nani chiratidzo pamwe astigmatism uye asthenopia (ziso kuneta, chirwere).

Nearsightedness (myopia) rinowanikwa pamunhu kana deformation yeziso, apo chiedza mwaranzi havasi nezvezvaiitwawo the retina, asi pamberi payo. Chikonzero chinoita ichi - kwakaderera ziso tsandanyama, izvo vazvidavirire apuro. Hyperopia - iri kutanga umo chifananidzo chakaumbwa kuti zvidzidzo the retina. Kakawanda, izvi zera-ukama kuchinja. Astigmatism - chinhu chisinganzwisisiki kutadza kuona zvakanaka, izvo zvinoderedza kutarisana acuity kure uye pedo.

Eyeglasses yakabvooka vari pakutanga kuona Sunglasses asi pachinzvimbo lenses vane ndiro chete duku maburi. Manufacturers vanoti iri kukura idzva, yakasimbiswa pachishandiswa mitemo Manyiminya wefizikisi (refraction, defragmentation, chipingaidzo luminous nekubudisa). Nokuti vanhu havana vaiziva wefizikisi uye mushonga, izvi mananara kuoneka asinganzwisisiki uye kwete zvakajeka. Asi yakawanda yokunyatsoongorora mashoko, hapana anopa. The uchishandisa pfungwa dzakadaro pfungwa inobva chinhu defragmentation Fani apo kuwedzera kudzika munda, nokuda izvo mufananidzo achingoraramira chaiyo pamusoro the retina, uye zvakaratidzwa anovandudza. Asi chiitiko ichi chinozivikanwa aperture maturo ( "peeping mugomba rejeri"). Uyezve, akaderedza zvainoita ziso tsandanyama, izvo zvinoita kuti kuzvivaraidza yavo.

Producers Vimbiso kuti magirazi yakabvooka panguva chaiyo kuchengeta mirayiridzo kuzvishandisa kwemaminitsi 30 pazuva vanokwanisa kudzoka zana muzana chiratidzo chete pagore. Zvinonzi zano kutanga maminitsi 10. Kokutanga munhu pavanorwadziwa kusanzwa, asi kumbojaira pamusoro nguva. In magirazi aya unogona kuverenga, kuona TV, basa iri kombiyuta, kuita mamwe mabasa.

Pane imwe maonero. Nyanzvi dzakawanda dzinofunga kuti magirazi yakabvooka - maturo chokushandisa. Sezvo myopia rinenge kusingarapiki pachayo, kureva pasina zvokunze kupindira, mumwe Workout hakuiti kuchiparadza, unogona chete kumisa kurasikirwa wezvakaonekwa. Hyperopia nyore kudzivirira ziso vachiona rudzi, uye achiita anokosha muchiitwa maziso. Astigmatism - kazhinji vachiberekwa kuremara maonero, unogona kubvisa, asi panguva imwe chete myopia yasara zvakakodzera kurapwa kubva kwaari.

American kudzidza, cheki pfungwa yakabvooka muUnited States, kwakaratidza kuti mudziyo uyu maturo chose. Zvine chiratidzo handizvo. Uyezve, sezvo zvikazooneka, ichi hachisi kukura ano. Similar mano kunge zvaiitikawo pakati Ages. Asi Perforated mahwendefa pamusoro nguva chikatsiviwa izvo, riri kuzoti nyore, uye vanobatsirwa nayo zvikuru.

Saka kunyange dai pfungwa iri mugomba uye tarira kujairika uye sokuti vanovimbisa chishamiso vachirapa, zvinokosha kufungisisa sei chishamiso ichi rationally. Kwete zvose iri okushambadza sechipiriso Ruzivo rwemazuva ano, ivo ndiyo.