Asi kunze kwekungova lenzi yakawanda isina mitsetse inooneka, malenzi anofambira mberi anoita kuti vanhu vane presbyopia vaone zvakare zvakajeka pamadaro ese.
Zvakanakira kufambira mberi lenses pamusoro bifocals
Bifocal eyeglass lenzi ane masimba maviri chete: rimwe rekuona mhiri kwekamuri uye rimwe rekuona padhuze. Zvinhu zviri pakati, sesekirini yekombuta kana zvinhu zviri pasherufu yegirosari, kazhinji zvinoramba zvisina kujeka nema bifocals.
Kuti uedze kuona zvinhu zviri pairi "pakati" renji zvakajeka, vanopfeka bifocal vanofanirwa kusimudza misoro yavo kumusoro nekudzika, vachitarisa kumusoro uyezve pasi pemabifocals avo, kuti vaone kuti ndeipi chikamu chelenzi chinoshanda zvirinani.
Malenzi anofambira mberi anonyatso kutevedzera chiono chechisikigo chawaifarira chisati chatanga presbyopia. Panzvimbo pekungopa masimba maviri emalenzi senge bifocals (kana matatu, senge trifocals), malenzi anofambira mberi ndeechokwadi "multifocal" lenses anopa kufambira mberi kwakatsetseka, kusina musono kwemasimba mazhinji emalenzi ekuona kwakajeka mukamuri, padhuze nepamadaro ese mukati. pakati.
Kuona kwechisikigo pasina "mufananidzo kusvetuka"
Mitsetse inooneka mubifocals uye trifocals inzvimbo dzinenge dziine kukurumidza. Zvakare, nekuda kwehuwandu hushoma hwemasimba emalenzi mune bifocals uye trifocals, kudzika kwako kwekutarisa nemalenzi aya kune kushomeka. Kuti zvionekwe zvakajeka, zvinhu zvinofanirwa kunge zviri mukati mechikamu chakati chenhambwe. Zvinhu zviri kunze kwemadaro akafukidzwa nemasimba e-bifocal kana trifocal lens zvichadzima uye shanduko musimba re lens.
Malenzi anofambira mberi, kune rumwe rutivi, ane kutsetseka, kusina musono kufambira mberi kwemasimba ekuona kwakajeka pamadaro ese. Malenzi anofambira mberi anopa kudzika kwakawanda kwekutarisa pasina "kusvetuka kwemufananidzo."
Simba remalenzi anofambira mberi rinoshanduka zvishoma nezvishoma kubva pane imwe nzvimbo kuenda pane imwe nzvimbo yelens, ichipa iyo chaiyo lens simba rekuona zvinhu zvakajeka pane chero chinhambwe.
Inopa chiono chakajeka pamadaro ese (panzvimbo pekungoita maviri kana matatu akasiyana ekuona madaro).
Kuti utarise zvakanyanya, nyaradzo uye chitarisiko, unogona kusarudza mikoridho yakafara kuitira nyore uye nekukurumidza kuchinjika pane yekupedzisira lenzi inofambira mberi. Unogona kuenda papejihttps://www.universeoptical.com/wideview-product/kuti utarise zvimwe zvakawanda nezve edu azvino anofambira dhizaini.