Magirazi ekuona (spectacle lenses) anogadzirisa zvikanganiso zve refractive nekukombamisa (refracting) chiedza pachinopfuura nepa lenzi. Huwandu hwekugona kukombamisa chiedza (simba re lenzi) hunodiwa kuti upe kuona kwakanaka hunoratidzwa pachirongwa chekuona chakapihwa nachiremba wemaziso.
Zvikanganiso zve refractive uye simba re lens rinodiwa kuti rigadziriswe zvinoyerwa muzvikamu zvinonzi dioptres (D). Kana usina kuona zviri pedyo, mushonga we lens yako ungati -2.00 D. Kana uine myopia yakanyanya, ungati -8.00 D.
Kana uchikwanisa kuona zviri kure, unoda magirazi e "plus" (+), akakora pakati uye akatetepa kumucheto.
Magirazi kana magirazi akajairika ekuona zviri pedyo zvakanyanya kana kuona zviri kure anogona kunge akakora uye akaremara.
Nerombo rakanaka, vagadziri vakagadzira zvinhu zvakasiyana-siyana zvemagirazi epurasitiki "ane index yepamusoro" zvinokombamisa chiedza zviri nani.
Izvi zvinoreva kuti zvinhu zvishoma zvinogona kushandiswa mumalenzi ane index yepamusoro kugadzirisa huwandu hwakafanana hwekukanganisa kwe refractive, izvo zvinoita kuti malenzi epurasitiki ane index yepamusoro ave matete uye akareruka pane malenzi egirazi kana epurasitiki echinyakare.
Mabhenefiti emalenzi ane index yepamusoro
Mutete
Nekuda kwekugona kwavo kupinza chiedza zvinobudirira, magirazi ane index yepamusoro ekuona zviri pedyo ane mipendero yakatetepa kupfuura magirazi ane simba rakafanana nerakagadzirwa nepurasitiki yemazuva ano.
Rakareruka
Mipendero mitete inoda zvinhu zvishoma zvemalenzi, izvo zvinoderedza huremu hwemalenzi. Malenzi akagadzirwa nepurasitiki ine index yakareruka kupfuura malenzi akafanana akagadzirwa mupurasitiki yemazuva ano, saka anonyatsosununguka kupfeka.
Uye magirazi mazhinji ane magirazi akawanda ane dhizaini yeaspheric, iyo inoita kuti ave matete, anoyevedza uye inoderedza chitarisiko chakakura chinokonzerwa nemagirazi emazuva ano kana akanyorerwa kwenguva refu.
Sarudzo dzemalenzi ane index yepamusoro
Magirazi epurasitiki ane index yepamusoro ava kuwanikwa mumhando dzakasiyana-siyana dze refractive indices, kazhinji kubva pa1.60 kusvika 1.74. Magirazi ane refractive index ye1.60 ne1.67 anogona kutetepa ne20 muzana pane magirazi epurasitiki akajairwa, uye 1.71 kana kupfuura anogona kutetepa ne50 muzana.
Uyewo, kazhinji, kana indekisi yakakwira, magirazi anodhura zvakanyanya.
Mushonga wako wekutarisa unosarudzawo kuti ndeapi mhando yezvinhu zvine index yepamusoro zvaungade zve lenzi yako. Zvinhu zvine index yepamusoro zvinonyanya kushandiswa pakurapa zvine simba.
Magadzirirwo nemagadzirirwo emalenzi mazhinji anozivikanwa mazuva ano — anosanganisira Dual Aspheric, Progressive, Bluecut Pro, Prescription tinted, uye malenzi eSpin-coating photochromic akagadzirwa neunyanzvi — anowanikwa muzvinhu zvine index yepamusoro. Tinokugamuchirai kuti mupinde mumapeji edu pahttps://www.universeoptical.com/armor-revolution-product/kuti utarise rumwe ruzivo.