Special Acetate Eye Sunglasses Colorful Fashion Cat BV210611

Nzira yekusarudza uye kupfeka magirazi ezuva?

Magirazi ezuva anonziwo sunshades. Muchirimo nenharaunda dzemapani, vanhu vanowanzopfeka magirazi ezuva kuti vadzivise kukurudzirwa nechiedza chakasimba uye kudzivirira kukuvadzwa kwemwaranzi yeultraviolet pameso. Nekuvandudzwa kwemararamiro, vanhu vanonyanya kukoshesa maziso avo. Muchiedza chezuva, ultraviolet rays inokuvadza maziso. Zviri mumwaranzi yeultraviolet mumwaranzi yezuva inosvika pasi pano inoita 7%. Iyo cornea uye lens yeziso remunhu matishu emeso anotapukirwa nekukuvara kweUV. Cataract chirwere chemaziso chine hukama nemirairo ye ultraviolet. Zvirwere zvemaziso zvakaita se solar keratitis, corneal endothelial kukuvara, eye macular discoloration, uye retinitis zvese zvine chekuita nemwaranzi yeultraviolet. Magirazi ezuva akakodzera ane basa rekuvhara ultraviolet uye infrared rays. Nokudaro, zvinogona kutaurwa kuti kupfeka magirazi ezuva muzhizha ndeimwe yenzira dzinoshanda dzekudzivirira maziso kubva kune ultraviolet rays.

Magirazi ezuva anowanzo kupatsanurwa mumapoka maviri: akajeka-ruvara uye rima-ruvara, uye ane akasiyana mavara. Kutonga mhando yemagirazi ezuva, tarisiro inofanirwa kunge iri pane akati wandei tekinoroji zviratidzo senge vertex simba uye prism simba, transmittance ratio maitiro, pamusoro pemhando uye hurema hwemukati, kurongeka kwegungano uye kuumbwa kwezvinodiwa.

Magirazi ezuva akanaka anogona mumvuri uye kushongedza kunze kwako. Asi mumusika, mamiriro ezvinhu chaiwo haana tariro. Vamwe vatengesi vanokanganwa nezve purofiti, vanotora mukana wekusanzwisisa kwevatengi kwemhando yemagirazi ezuva, uye vanoshandisa yakaderera-mhando, ine mutengo wakaderera girazi rehwindo kana zvimwe zvinhu zvakaderera kugadzira magirazi. Zvishandiso izvi zvine kusafanana kwakashata, zvine mitsetse, mabhubhu uye zvimwe zvitsvina, hazvigone kuvhara ultraviolet mwaranzi, uye hazvisangane nezvinodiwa zvemuviri zveziso remunhu. Zvakare, kushandiswa kwemapepa epurasitiki akaderera ane mwenje wakaderera unooneka asi yakakwira ultraviolet transmittance kugadzira magirazi ezuva inokonzeresa kukuvadza kune vatengi.

Nzira yekusarudza uye kupfeka magirazi ezuva? Nyanzvi dzinoyeuchidza vatengi kuti vasangoteerera chete chimiro chegirazi, asiwo kune yavo yekuzvarwa hunhu. Kune magirazi ezuva anokwanirisa, kutapurirana kwemwaranzi yakareba-wave ultraviolet ine wavelengths pakati pe315nm ne380nm haifanire kudarika gumi muzana, uye kutapurirana kwemirayiro yepakati-wave ultraviolet ine wavelengths pakati pe280nm ne315nm inofanira kunge iri zero. Kupfeka rudzi urwu rwemagirazi ezuva kunogona kuchengetedza cornea, lens uye retina yemaziso kubva pakukuvadzwa kweUV. Mamwe magirazi ezuva akachipa haangogone kusefa kunze kwemwaranzi yeultraviolet, asi zvakare kuvharira mwenje unooneka, zvichiita kuti kuratidzwa kune ultraviolet mwaranzi kuwedzere kutaurwa. Zviri nani kusapfeka magirazi ezuva akadaro.

Magirazi ezuva ndeeiyo flat mirror series. Maererano nemitemo yenyika, magirazi ezuva anongobvumirwa kuva ne diopter ye plus kana minus 8 degrees, uye kunze kweiyi kukanganisa mutsara kune chigadzirwa chisingaenzaniswi. Maererano nekuonekwa kwemagirazi ezuva pamusika nevatsvakurudzi, inenge 30% yemagirazi ezuva ane diopter inodarika kushivirira, uye mamwe akareba kusvika ku20 degrees. Nyanzvi dzinoratidza kuti vatengi vane maonero akajairwa vanopfeka rudzi urwu rwemagirazi, sekupfeka magirazi emyopia kana hyperopia. Mushure mezhizha, vatengi vachave "vakadzidziswa" kuita myopia kana hyperopia varwere nemagirazi ezuva akaderera. Paunoona zviratidzo zvakadai sedzungu, kusvotwa, uye kupenya mushure mekupfeka magirazi ezuva, unofanira kurega kuapfeka pakarepo.