Amma bayan kasancewar ruwan tabarau na multifocal ba tare da layukan bayyane ba, ruwan tabarau na ci gaba yana ba mutanen da ke da presbyopia damar sake gani a sarari a kowane nesa.
Amfanin ruwan tabarau masu ci gaba akan bifocals
Gilashin tabarau na Bifocal suna da iko biyu kawai: ɗaya don gani a cikin ɗakin da ɗayan don ganin kusa. Abubuwan da ke tsakanin, kamar allon kwamfuta ko abubuwa a kan shiryayye na kantin kayan miya, galibi suna zama masu duhu tare da bifocals.
Don ƙoƙarin ganin abubuwa a wannan kewayon “tsaka-tsaki” a sarari, masu sanye da bifocal dole ne su ɗaga kawunansu sama da ƙasa, suna kallon sama da ƙasan bifocals ɗin su, don tantance wane ɓangaren ruwan tabarau ya fi aiki.
Lens masu ci gaba sun fi kwaikwayi hangen nesa na halitta wanda kuka ji daɗi kafin farkon presbyopia. Maimakon samar da ikon ruwan tabarau biyu kawai kamar bifocals (ko uku, kamar trifocals) , ruwan tabarau masu ci gaba sune ruwan tabarau na "multifocal" na gaskiya waɗanda ke ba da santsi, ci gaba mara kyau na ikon ruwan tabarau masu yawa don hangen nesa a cikin ɗakin, kusa da kowane nesa a cikin. tsakanin.
Hangen yanayi ba tare da "tsalle hoto"
Layukan bayyane a cikin bifocals da trifocals maki ne inda akwai kwatsam. Hakanan, saboda iyakance adadin ikon ruwan tabarau a cikin bifocals da trifocals, zurfin mayar da hankalin ku tare da waɗannan ruwan tabarau yana iyakance. Don a gani a sarari, abubuwa dole ne su kasance cikin kewayon kewayon tazara. Abubuwan da ke waje da nisan da aka rufe da ikon ruwan tabarau na bifocal ko trifocal za su kasance masu duhu kuma su canza ikon ruwan tabarau.
Lens masu ci gaba, a daya bangaren, suna da santsi, ci gaban ikon ruwan tabarau don bayyananniyar hangen nesa a kowane nesa. Ruwan tabarau masu ci gaba suna ba da ƙarin zurfin hankali na dabi'a ba tare da "tsalle hoto ba."
Ƙarfin ruwan tabarau na ci gaba yana canzawa a hankali daga aya zuwa aya akan saman ruwan tabarau, yana samar da madaidaicin ikon ruwan tabarau don ganin abubuwa a sarari a kusan kowane nisa.
Yana ba da hangen nesa mai haske a kowane nisa (maimakon a kawai tazarar gani biyu ko uku).
Don mafi kyawun hangen nesa, ta'aziyya da bayyanar, za ku iya zaɓar manyan tituna don sauƙi da sauri fiye da ruwan tabarau na ci gaba na ƙarni na ƙarshe. Kuna iya matsawa cikin shafinhttps://www.universeoptical.com/wideview-product/don bincika ƙarin cikakkun bayanai game da sabbin ƙirarmu masu ci gaba.