Babu damuwa - wannan ba yana nufin dole ne ka sanya bifocals ko trifocals mara kyau ba.Ga yawancin mutane, ruwan tabarau na ci gaba mara layi shine mafi kyawun zaɓi.
Menene ruwan tabarau masu ci gaba?
Gilashin tabarau masu ci gaba ba layi ba ne masu gilashin ido masu yawa waɗanda suke daidai da ruwan tabarau iri ɗaya.A wasu kalmomi, ruwan tabarau masu ci gaba za su taimake ka ka gani a fili a kowane nisa ba tare da waɗancan "layin bifocal" masu banƙyama (da ma'anar shekaru) waɗanda ke bayyane a cikin bifocals da trifocals na yau da kullun.
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.
Bifocals, a gefe guda, suna da ikon ruwan tabarau biyu kawai - ɗaya don ganin abubuwa masu nisa a sarari da ƙarfi na biyu a ƙananan rabin ruwan tabarau don gani a sarari a ƙayyadaddun nisan karatu.An bayyana mahaɗin tsakanin waɗannan wurare daban-daban na wutar lantarki ta hanyar “layin bifocal” da ke bayyane wanda ke yanke tsakiyar ruwan tabarau.
Lenses masu ci gaba, wani lokaci ana kiran su "no-line bifocals" saboda ba su da wannan layin bifocal na bayyane.Amma ruwan tabarau masu ci gaba suna da ingantaccen ƙirar multifocal fiye da bifocals ko trifocals.
Babban ruwan tabarau na ci gaba, yawanci suna ba da mafi kyawun ta'aziyya da aiki, amma akwai wasu samfuran da yawa da ƙarin ayyuka kuma, kamar ruwan tabarau na ci gaba na photochromic, ruwan tabarau na ci gaba na bluecut da sauransu, da kayan iri 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 da yawa bayan shekaru 40. Wannan shine lokacin da canjin tsufa na yau da kullum a cikin ido wanda ake kira presbyopia yana rage ikonmu na gani a fili kusa.Ga duk wanda ke da presbyopia, ruwan tabarau masu ci gaba suna da fa'idodin gani da kayan kwalliya idan aka kwatanta da bifocals na gargajiya da trifocals.
Zane-zanen multifocal na ruwan tabarau masu ci gaba yana ba da fa'idodi masu mahimmanci a ƙasa:
Yana ba da hangen nesa mai haske a kowane nisa (maimakon a kawai tazarar gani biyu ko uku).
Yana kawar da damuwa "tsalle hoto" wanda bifocals da trifocals suka haifar.Anan ne abubuwa ke canzawa kwatsam cikin tsabta da bayyananniyar matsayi lokacin da idanunku ke motsawa a kan layukan da ake gani a cikin waɗannan ruwan tabarau.
Saboda babu “layin bifocal” da ake iya gani a cikin ruwan tabarau masu ci gaba, suna ba ku bayyanar matasa fiye da bifocals ko trifocals.(Wannan dalili kadai na iya zama dalilin da ya sa mutane da yawa a yau suna sanye da ruwan tabarau masu ci gaba fiye da adadin waɗanda ke sa bifocal da trifocals a hade.)