Asi kunze kwekungova lenzi ine magirazi akawanda isina mitsetse inooneka, magirazi anofambira mberi anogonesa vanhu vane presbyopia kuona zvakajeka zvakare padaro rese.
Mabhenefiti eprogressive lenses pane bifocals
Magirazi egirazi ane magirazi maviri ane simba mbiri chete: rimwe rekuona mhiri kwekamuri uye rimwe rekuona zviri pedyo. Zvinhu zviri pakati, zvakaita sekombiyuta kana zvinhu zviri pasherufu yechitoro chezvitoro, zvinowanzoramba zvisina kujeka ne magirazi maviri.
Kuti vaedze kuona zvinhu zviri pa "pakati" apa zvakajeka, vanopfeka ma "bifocal" vanofanira kukotamisa misoro yavo kumusoro nekudzika, vachitarisa-tarisa kumusoro uye pasi pema "bifocal" avo, kuti vaone kuti ndechipi chikamu chelenzi chinoshanda zviri nani.
Magirazi ekufambira mberi anotevedzera zvakanyanya kuona kwechisikigo kwawainakidzwa nako usati watanga presbyopia. Pane kupa masimba maviri emagirazi sema bifocals (kana matatu, sema trifocals), magirazi ekufambira mberi ndiwo magirazi echokwadi e "multifocal" anopa kufambira mberi kwakanaka uye kusina musono kwemasimba mazhinji emagirazi ekuona zvakajeka mukamuri rese, ari pedyo uye padaro rese riri pakati.
Kuona kwechisikigo pasina "kusvetuka kwemufananidzo"
Mitsetse inoonekwa mu bifocals ne trifocals inzvimbo dzinoerekana dzaitika. Zvakare, nekuda kwehuwandu hushoma hwesimba rema lens mu bifocals ne trifocals, kudzika kwekutarisa kwako nema lens aya kwakaganhurirwa. Kuti zvionekwe zvakajeka, zvinhu zvinofanirwa kunge zviri mukati medaro rakatarwa. Zvinhu zviri kunze kwemadaro akafukidzwa nesimba re bifocal kana trifocal lens zvichadzimwa uye simba re lens richachinja.
Magirazi ekufambira mberi, kune rumwe rutivi, ane simba remagirazi rakapfava uye risina musono rekuona zvakajeka padaro rese. Magirazi ekufambira mberi anopa kudzika kwakajeka kwechisikigo pasina "kusvetuka kwemufananidzo."
Simba rema lenzi anofambira mberi rinochinja zvishoma nezvishoma kubva panzvimbo imwe kuenda pane imwe pamusoro pe lenzi, zvichipa simba rakakodzera re lenzi rekuona zvinhu zvakajeka padyo nechero daro.
Inopa kuona kwakajeka padaro rese (panzvimbo pekungoona daro remadaro maviri kana matatu akasiyana).
Kuti uone zvakanaka, unyarare uye chitarisiko chakanaka, unogona kusarudza nzira dzakakura kuti dzive nyore uye dzinokurumidza kuchinja pane lenzi yechizvarwa chekare. Unogona kupinda mupejihttps://www.universeoptical.com/wideview-product/kuti utarise rumwe ruzivo nezvemagadzirirwo edu matsva ekufambira mberi.