Muraayadaha wax akhriska ee LED-ka dib la buuxin karo

Muraayadaha Presbyopic, oo sidoo kale loo yaqaano muraayadaha presbyopic, waa nooc ka mid ah alaabada indhaha, muraayadaha dadka qaba presbyopia, kuwaas oo ka tirsan lens convex.Muraayadaha wax-akhrinta ayaa inta badan ah in lagu daboolo baahiyaha dadka qaba presbyopia.Muraayadaha wax-akhriska ayaa loo isticmaalaa in lagu kabo aragtida dadka da'da dhexe iyo kuwa da'da ah.Sida muraayadaha myopia, waxaa jira tilmaameyaal badan oo indhaha ah oo lagu qeexay heerarka qaranka, waxaana sidoo kale jira xeerar gaar ah oo isticmaalka.Isticmaalka muraayadaha wax-akhriska ayaa kaalin lama huraan ah ka ciyaara horumarinta tayada nolosha dadka.Waxa jira saddex nooc oo muraayadaha wax-akhriska ah ee suuqa yaalla, kuwaas oo kala ah hal-arag, laba-arag iyo horusocod multifocal.Muraayadaha aragga keliya waxa loo isticmaali karaa oo keliya in lagu arko meel u dhow, waxaadna u baahan tahay inaad iska saarto muraayadaha marka aad meel fog wax ka aragto.Bifocals waxay ka dhigan tahay in qaybta sare ee muraayadda loo isticmaalo in lagu arko meel fog, iyo qaybta hoose ee muraayadda ayaa loo isticmaalaa in lagu arko meel u dhow, laakiin muraayadaha akhriska ee noocan oo kale ah ayaa leh ifafaale booda, muuqaalkuna maaha mid qurux badan.Lens-ka horu-kaca ee multifocal wuxuu dabooli karaa baahiyaha masaafada kala duwan ee fog, dhexe iyo dhow, iyo muuqaalka sidoo kale waa mid aad u wanaagsan.