Ayyuka masu rarrabewa ne daga hangen nesa al'ada, kamar zakuɗa a cikin hoto. Yawancin mutane sun saba da sharuddan kallo, hangen nesa, presbyopia, da astigmatism . Wadannan suna dauke da zubar da hankali na farko da kuma kashi 85% na kuskuren hangen nesa na mutum. Duk da haka, wani nau'i na kurakurai masu ɓatarwa waɗanda ba'a kula da su ba har sai kwanan nan shi ne haɓakaccen tsari.
Dukkan idanu suna da kimar wasu nauyin haɗari mafi girma. Wadannan aberrations sun gane yanzu saboda an bunkasa fasaha don tantance su yadda ya dace.
Alamai da cututtuka
Yawan ido sau da yawa yana da hanyoyi daban-daban daban-daban na aiki tare. Wani lokacin mawuyacin ƙwarewa ne don nuna bambancin cututtukan mutum wanda zai iya nunawa ga wata mahimmanci. Wasu aberrations mafi girma-tsari na iya, duk da haka, samar da ƙuƙwalwar ƙwayoyi irin su:
- Glare
- Halos
- Girman sakamako na Starburst
- Hotunan 'yan adam
- Blurring
Dalilin
Halin ido na mutum yakan haifar da tarzomar hoto. Wadannan hargitsi ana kiransa aberrations. Kamar yadda hasken hasken ke wucewa ta hanyar tsari, yana da tasiri. A cikin ido cikakke, iyakar da ke kan iyaka ba ta da dadi. A cikin ido tare da rashin daidaituwa, maɓallin kewayawa ya zama ɓatacce kuma yana da siffar fasali uku. Za a iya haifar da zubar da jini mafi girma a cikin ƙananan labaran da kuma ruwan tabarau, damuwa, tsoka, idon bushe, da manyan yara .
Sanin asali
Ana amfani da ƙauyuka mafi girma ta hanyar "Shaker-Hartmann aberrometer." Wannan na'urar ta auna girman ido na idanu kuma ta kwatanta shi a ido wanda ba shi da wani aberrations. Wannan taswirar aberration ake kira "idon sawun ido" domin yana da banbanci kuma ba kamar wani tsarin tsarin mutum ba.
Sabanin nauyin nuni na al'ada, wanda ke buƙatar ainihin fahimta daga mai haƙuri, aberrometer yana ɗauka kawai sakanni don samun ma'aunai kuma baya buƙatar shigarwa da haƙuri.
Jiyya
Ilimin shekaru masu yawa da aka samo asali. Sai kawai a cikin 'yan shekarun da suka gabata na fasaha na kan iyaka ya sami isa sosai, don haka, don samar da ma'auni daidai da ƙididdiga. Wasu nau'i-nau'i na sababbin gilashi da aka tsara da tabarau, ruwan tabarau masu tuntuɓe, ƙirar intraocular da aka tsara, kuma gyarawar hangen nesa na laser zai iya gyara zartattun tsari. Da yawa za a ji game da maganin aberrations mafi girma a cikin 'yan shekaru masu zuwa, kamar yadda fasaha ta kewaya yana bayyana da yawa aikace-aikace a gyara gyara.