Bincika diopter na ido, zaɓi firam ɗin da aka yi niyya, mutane da yawa za su sami tambayoyi: da yawa iri, iri, ruwan tabarau na aiki, wanda ya dace da ni?Shin "Ina yin abu na" , "bi zuciyata" , ko "Google Search" ?
Alamar Lens, fim ɗin daban-daban, index refractive, ayyuka daban-daban, tasirin gani daban-daban da sauran dalilai, za a sami dozin ko ma ɗaruruwan nau'ikan ruwan tabarau, mutane suna shakka.
Yanzu, bari mu yi magana a taƙaice game da ruwan tabarau na gani da aka fi amfani da su.Daga ra'ayi na aikace-aikacen, akwai ruwan tabarau masu haske guda ɗaya da ruwan tabarau masu aiki.
Lens guda ɗaya: Lens guda ɗaya yana nufin akwai cibiyar gani guda ɗaya kawai akan Lens, cibiyar gani tana dacewa da yankin ɗalibin ku (shi yasa ake auna tazarar ɗalibi) .
Ruwan tabarau masu haske guda ɗaya sun kasu kusan zuwa nau'i-nau'i, na aspherical, biaspherical da free-form Lenses, masu kyauta a halin yanzu sun fi kyau wajen rage ɓarna da ɓarna, amma kuma suna da ɗan tsada fiye da sauran ruwan tabarau.Lokacin da ka zaɓa, ya kamata ka bisa ga hasken ido da matakin astigmatism don zaɓar.
Single Lens shine zaɓi mafi mahimmanci kuma mai sauƙi ga waɗanda ke da isasshen ikon daidaitawa, wato waɗanda ba su da Presbyopia.Amma ga mutanen da suka fara haɓaka PRESBYOPIA, ana iya amfani da ruwan tabarau na monocular ne kawai a ƙayyadadden tazara, ko a nesa (don tuki) , ko a nesa (na kwamfutocin tebur) , ko kuma a nesa kusa (don karatu) , ba duka ba.To yanzu me za mu yi?Magani ɗaya: gilashin biyu a nesa, ɗayan kuma: gilashin multifocal masu ci gaba.
Lenses masu aiki: gami da ruwan tabarau na anti-gajiya, ruwan tabarau na bifocal, ruwan tabarau na ci gaba da yawa, ruwan tabarau na yara don rage jinkirin ci gaban Myopia ( tabarau na defocus na gefe, ruwan tabarau na bifocal + priism) da sauransu.
Ruwan tabarau masu aiki suna da yawa, yadda za a zaɓa, ɗaya shine ganin buƙatarmu ta gilashin, biyu shine manufar tabarau.Ɗauki ruwan tabarau na ci gaba na multifocal, waɗanda gilashin aiki ne waɗanda aka tsara don biyan bukatun mutane masu hangen nesa da masu hangen nesa.Misali, malami yana iya buƙatar duba allo yayin da yake tattaunawa da ɗalibai a cikin aji (yana duban nesa) da kuma tsarin darasi (yana kallon yadda ake amfani da shi kusa) .Ko kuma taron sashen na iya buƙatar kallon nunin faifai da kwamfuta, kuma yana buƙatar kula da maganganun mahalarta, gilashin ci gaba da yawa mai mahimmanci akan babban rawar.
Ana iya cewa gilashin gilashin ci gaba na iya magance matsalar samun damar iya gani a fili a nesa daban-daban, kuma ba shi da bambanci da Lens mai haske guda ɗaya a cikin bayyanar, kiyaye idanunmu "daskararre" , amma optometry da matching ruwan tabarau. ba mai sauƙi kamar ruwan tabarau ɗaya ba.
1. Daidaita auna haske mai nisa.
2, bisa ga shekaru, al'ada na kusa aiki nesa, ido matsayi, daidaitawa amsa, tabbatacce kuma korau daidaita dangi, da dai sauransu.Kuma zabar tashar da ta dace (wato, tsawon lokacin sauyawa tsakanin wurare masu nisa da kusa da haske akan Lens) don biyan bukatun aikin yau da kullum.
3. Daidaita firam ɗin keɓaɓɓen.Dangane da tsayin gadar hancin kowane mutum, tsayin kunnuwa da sauransu akan firam ɗin makarantar, ta yadda gilashin ke sawa cikin kwanciyar hankali.
4. Auna tazarar ɗalibi.Za a auna tazarar da ke tsakanin idanu na Kusa da na nesa, tsayin ɗalibin a tsaye a tsaye na firam, da alamar da ke kan firam ɗin da aka zaɓa.Domin samun ƙarin tasirin gani da rage tsangwama na yankin Aberration zuwa hangen nesa lokacin sanye da ruwan tabarau na ci gaba, wurare masu nisa da kusa da haske suna cikin yankin da ya dace da ɗalibi.
5. Ana buƙatar ƙarin ma'auni don zayyana ruwan tabarau masu dacewa masu dacewa: Nisa ido (nisa daga saman cornea zuwa Lens) , curvature na firam, kusurwar karkatar da firam, siffar da girman firam, da dai sauransu .. Dangane da girman motsin kai da motsin ido, muna zaɓar nau'in da ya dace, wanda zai iya rage tasirin aberration a ɓangarorin biyu na Lens, rage lokacin daidaitawa, kuma sanya suturar da ta fi dacewa.
Don haka, zaɓin Lens bai kamata kawai ya mai da hankali kan alama ko farashi ba, ba ruwan tabarau mafi tsada ya fi kyau, a makance zaɓi ba.Masu lura da ido suna ba da shawarar cewa ku zaɓi ruwan tabarau bisa ga yanayin su, buƙatun ido da shawarar masu ido don zaɓar ruwan tabarau mai kyau don nasu.
Lokacin aikawa: Yuli-28-2021