Babu damuwa — wannan ba yana nufin dole ne ka sanya bifocals ko trifocals marasa daɗi ba. Ga yawancin mutane, ruwan tabarau masu ci gaba marasa layi zaɓi ne mafi kyau.
Menene ruwan tabarau masu ci gaba?
Gilashin ido masu ci gaba sune gilashin ido masu yawa waɗanda ba su da layi ɗaya waɗanda suke kama da gilashin gani ɗaya. A wata ma'anar, gilashin ido masu ci gaba za su taimaka maka ka gani a sarari a kowane nisa ba tare da waɗannan "layukan bifocal" masu ban haushi (da kuma waɗanda ke bayyana shekaru) waɗanda ake iya gani a cikin bifocals na yau da kullun da trifocals ba.
Ƙarfin ruwan tabarau masu ci gaba yana canzawa a hankali daga wuri zuwa wuri akan saman ruwan tabarau, yana ba da ƙarfin ruwan tabarau daidai don ganin abubuwa a sarari kusan kowane nisa.
A gefe guda kuma, bifocals suna da ƙarfin ruwan tabarau guda biyu kacal - ɗaya don ganin abubuwa masu nisa a sarari da kuma ƙarfi na biyu a ƙasan ruwan tabarau don ganin a sarari a taƙaice tazara ta karatu. Haɗin da ke tsakanin waɗannan yankuna daban-daban na wutar lantarki an bayyana shi ta hanyar "layin bifocal" da ake iya gani wanda ke ratsa tsakiyar ruwan tabarau.
Ruwan tabarau masu ci gaba, wani lokacin ana kiransu "bifocals marasa layi" saboda ba su da wannan layin bifocal da ake gani. Amma ruwan tabarau masu ci gaba suna da ƙira mai zurfi fiye da bifocals ko trifocals.
Gilashin ruwan tabarau masu tsada, galibi suna ba da mafi kyawun jin daɗi da aiki, amma akwai wasu samfuran da yawa da ƙarin ayyuka, kamar ruwan tabarau masu tasowa na photochromic, ruwan tabarau masu tasowa na bluecut da sauransu, da kayan aiki daban-daban. Kuna iya samun wanda ya dace da kanku akan shafinmuhttps://www.universeoptical.com/progressive-lenses-product/.
Yawancin mutane suna fara buƙatar gilashin ido mai yawan ido bayan shekaru 40. Wannan shine lokacin da canjin tsufa na yau da kullun a ido da ake kira presbyopia ke rage ikonmu na gani a sarari. Ga duk wanda ke da presbyopia, ruwan tabarau masu ci gaba suna da fa'idodi masu mahimmanci na gani da kwalliya idan aka kwatanta da bifocals na gargajiya da trifocals.
Tsarin ruwan tabarau mai ci gaba mai yawa yana ba da fa'idodi masu mahimmanci a ƙasa:
Yana ba da haske mai kyau a kowane nisa (maimakon nisan kallo biyu ko uku kawai).
Yana kawar da "tsallakewar hoto" mai wahala wanda bifocals da trifocals ke haifarwa. Nan ne abubuwa ke canzawa kwatsam a cikin haske da matsayin da ke bayyane lokacin da idanunku ke motsawa a kan layukan da ake gani a cikin waɗannan ruwan tabarau.
Domin babu "layin bifocal" da ake gani a cikin ruwan tabarau masu ci gaba, suna ba ku kamanni mafi ƙuruciya fiye da bifocals ko trifocals. (Wannan dalili kaɗai yana iya zama dalilin da ya sa mutane da yawa a yau ke sanya ruwan tabarau masu ci gaba fiye da adadin waɗanda ke sanya bifocal da trifocals a hade.)