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A hankali zurfafa zurfafan Hoton da aka Fitar da myopia
  • Rage zurfin zurfin myopia

Rage zurfin zurfin myopia

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360 ruwan tabarau na ci gaba

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Sauƙaƙe gajiyawar gani kuma hana matakin zurfafawa

Yana karya halaye na ƙara ƙarfin ƙarfin ruwan tabarau mai siffar zobe da ƙananan ɓarnaruwan tabarau ASP.Zuƙowa madauwari mai ma'aunin digiri 360 daga tsakiyar ruwan tabarau zuwa alkiblar gefe.
Mafi girman matakin ruwan tabarau, mafi girman zuƙowar ruwan tabarau cur vature (daidaituwa ta atomatik25-200 digiri) Saboda daidaitawar idanu da rage ikon da ke kewaye daruwan tabarau, mafi ƙarancin gefen ruwan tabarau, ƙaramin ƙarfin priism, wanda ke rage gajiyawar ido.a lokacin karatu da rubutu, ta yadda ikon idanu ba shi da sauƙi don zurfafawa, da kuma axis na idoba sauki girma.

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Ta hanyar ma'aunin madauwari na 360-digiri, haɗe tare da daidaitawar idanu na dabi'a, zai iya sauƙaƙe gajiyar ido yadda ya kamata da sarrafa haɓakar axis ido.Yin motsa jiki na ido sosai a kowane lokaci.

Ruwan tabarau na mayar da hankali na zobe yana rage defocus na para-center kuma yana rage ɓarna nau'i na yankin makafi na gani.Yana da fa'idar hangen nesa, yana sanya shi jin daɗin sawa da gani, yana kawar da gajiyawar ido, a fakaice yana inganta aikin liyafar ɗalibai a cikin aji, kuma makinsu yana ci gaba da hauhawa.
Lokacin kallon abubuwa a nesa na mita 5, idanu ba sa buƙatar daidaitawa.Lokacin kallon fonts a nesa kusa (33mm), daidaitawar idanu shine digiri 300.Lokacin da majiyyacin myopia mai digiri 300 ya karanta kuma ya rubuta ba tare da gilashi ba, zai iya ganin font ɗin littafin a sarari ba tare da daidaitawar ido ba, kuma hangen nesa kusa da majiyyaci na al'ada ne.Idan an sanye ku da gilashin myopia na digiri 300, kuna buƙatar daidaitawa-digiri 300 don ganin font a sarari lokacin da kuke karantawa da rubutu a kusa.Wannan yana ƙara nauyin daidaitawa na idanu.Bayan lokaci mai tsawo, idanu suna fuskantar gajiya, axis na idanu suna tilasta tsayin daka, kuma matakin myopia zai zurfafa.Saboda haka, ruwan tabarau na yau da kullun (spherical surface, aspherical surface) wani muhimmin abu ne (musamman samari) wanda ke sa marasa lafiya marasa lafiya su yi amfani da idanunsu a kusa da kuma ƙara darajar myopia.

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Tsarin rigakafi da sarrafawa myopia

● Amince da fasahar sarrafa defocus na gefe don gyara hangen nesa na tsakiya da hangen nesa na gefe a lokaci guda, yadda ya kamata ya hana idon yara daga tsayin daka da rage ci gaban myopia.
Yana da ruwan tabarau na gani guda ɗaya na musamman wanda ba shi da wani yanki na ɓarna a fili, kuma yana da kyakkyawar daidaitawa da sawa.
● Idan aka kwatanta da na yau da kullun y ruwan tabarau na gani guda ɗaya, ruwan tabarau sun fi sauƙi kuma sun fi dacewa.

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