Akwai nau'ikan ruwan tabarau iri-iri da yawa da ake samu a yau, yawancinsu suna cika manufa ɗaya ko ma dalilai da yawa.A cikin shafin yanar gizon wannan watan za mu tattauna lens na bifocal, yadda suke aiki, da kuma mene ne amfanin su ga nakasar hangen nesa daban-daban.
Gilashin tabarau na Bifocal sun ƙunshi ikon ruwan tabarau guda biyu don taimaka maka ganin abubuwa a kowane nesa bayan ka rasa ikon canza yanayin idanunka a zahiri saboda shekaru, wanda kuma aka sani da presbyopia.Saboda wannan takamaiman aikin, ruwan tabarau na bifocal an fi rubuta su ga mutanen da suka wuce shekaru 40 don taimakawa ramawa ga lalacewar hangen nesa na dabi'a saboda tsarin tsufa.
Ko da menene dalilin da kuke buƙatar takardar sayan magani don gyaran hangen nesa kusa, bifocals duk suna aiki iri ɗaya.Ƙananan yanki a cikin ƙananan ɓangaren ruwan tabarau ya ƙunshi ikon da ake buƙata don gyara hangen nesa na kusa.Sauran ruwan tabarau yawanci shine don hangen nesa na ku.Bangaren ruwan tabarau da aka keɓe don gyaran hangen nesa na kusa zai iya zama ɗaya daga cikin siffofi da yawa:
• Rabin wata - kuma ana kiransa lebur-top, madaidaiciya- saman ko sashin D
• Yanki zagaye
• Wuri mai kunkuntar yanki, wanda aka sani da ɓangaren ribbon
• Cikakken rabin ƙasa na ruwan tabarau bifocal da ake kira Franklin, Executive ko E style
Gabaɗaya, lokacin sanye da ruwan tabarau na bifocal, kuna duba sama da ta nisan yanki na ruwan tabarau lokacin da kuke mai da hankali kan wuraren da ke nesa, kuma kuna kallon ƙasa kuma ta ɓangaren bifocal na ruwan tabarau lokacin mai da hankali kan karatun abu ko abubuwa tsakanin inci 18 na idanunku. .Wannan shine dalilin da ya sa aka sanya ƙananan ɓangaren bifocal na ruwan tabarau don haka layin da ke raba sassan biyu ya tsaya a tsayi ɗaya da ƙananan idon mai sawa.Idan kun yi imani cewa ruwan tabarau na bifocal, ko ma ƙarin ruwan tabarau na multifocal masu ci gaba, na iya zama zaɓin da ya dace don raunin hangen nesa sannan ku shiga cikin Convox Optical a yau kuma abokan hulɗarmu da ƙwararrun ma'aikatan na iya taimaka muku jagora zuwa cikakken zaɓi na ruwan tabarau da firam ɗin.
Wurin asali | China Zhejiang | |||
Sunan samfur | Babban ruwan tabarau na Photochromic Flat | |||
Fihirisa | 1.56 | |||
Kayan abu | Resin /NK-55 | |||
Tufafi | HMC | |||
Watsawa | >98% | |||
Halaye | SHAFE CIKI, CANJA LAUNI A WAJE | |||
MOQ | 100 Biyu | |||
Launi mai rufi | Green, Blue | |||
Photochromic | Hoto launin toka, Hoton launin ruwan kasa | |||
Resistance abrasion | 6-8H | |||
Wurin wutar lantarki | SPH: -2.00~+3.00 ADD:+1.00~+3.00 | |||
Garanti mai inganci | Shekara daya |