Progressive multifocal dacewa tsari
1. Sadarwa da fahimtar bukatun hangen nesa, kuma tambaya game da tarihin gilashin ku, sana'a, da buƙatun sababbin tabarau.
2. Na'urar gani ta kwamfuta da ma'aunin nisa tsakanin ɗalibai na ido ɗaya.
3. Tsirara / na asali gwajin hangen nesa, lokacin da aka ƙayyade diopter mai nisa, dole ne ya dogara da diopter na gilashin asali da kuma buƙatun hangen nesa.
4. Ka'idar retinoscopy da ra'ayi mai mahimmanci (hangen nesa) don ƙayyade diopter mai nisa shine: bisa ga ka'idar hangen nesa mai karɓa, myopia na iya zama mai zurfi kamar yadda zai yiwu, hyperopia na iya zama mai isa kamar yadda zai yiwu, kuma an ƙara astigmatism.Yi hankali kuma ku daidaita idanuwanku.
5. Don gyaran hangen nesa mai nisa, daidaitawa da tabbatar da ruwan tabarau tare da diopter mai nisa a gaban idanun abin, kuma bari batun ya sa shi don sanin ko diopter mai nisa ya yarda.
6. Kusa-presbyopia/presbyopia ma'auni.
7. Gwada gyaran hangen nesa kusa, daidaita kuma tabbatarwa.
8. Gabatarwa da zaɓin nau'ikan ruwan tabarau na ci gaba da kayan.
9. Ana bada shawara don zaɓar firam.Zaɓi firam ɗin da ya dace bisa ga daban-dabanruwan tabarau masu ci gabaka zaɓa, kuma tabbatar da cewa akwai isasshiyar tazara ta tsaye daga tsakiyar almajiri zuwa mafi ƙasƙanci na ƙananan gefen firam.
10. Tsarin tsari, nisa tsakanin gilashin ido shine 12 ~ 14mm.The gaba karkatar kwana ne 10 ° ~ 12 °.
11. Ma'aunin tsayin ido guda ɗaya.
12. Ƙaddamar da ma'aunin ma'aunin fim na ci gaba.
13. Jagoranci akan amfani da ruwan tabarau masu ci gaba.Akwai alamomi akan ruwan tabarau.Bincika ko crosshairs suna cikin tsakiyar ɗalibin kuma ƙayyade amfani da duk nisa.
Zaɓin firam ɗin multifocal mai ci gaba
Don zaɓin firam ɗin, ana buƙatar farko cewa wurin tsakiyar ɗalibin zuwa gefen ciki na ƙananan firam ɗin gabaɗaya bai wuce 22mm ba.A tsawo daga cikin misali tashar 18mm ko 19mm frame ya zama ≥34mm, da kuma gajeren tashar 13.5 ko 14mm frame tsawo ya zama ≥ 30mm, da kuma kauce wa zabar Frames tare da babban bevel a kan hanci gefen, domin yana da sauki a "yanke. "yankin karatu.Gwada kar a zaɓi firam ɗin da ba su da firam, waɗanda ke da sauƙin sassautawa da canza sigogi daban-daban.Hakanan tabbatar da zaɓar firam ɗin tare da santsin hanci daidaitacce.
Alamar mai da hankali da yawa mai ci gaba
Kafin aunawa, dole ne a gyara firam ɗin kuma a daidaita shi don samun ma'auni mafi kyau.Nisa tsakanin gilashin ido gabaɗaya 12-13mm, kusurwar gaba shine digiri 10-12, kuma tsayin haikalin ya dace.
1.Mai jarrabawa da wanda ake yi wa jarrabawa suna zaune gaba dayansu, suna kiyaye ganinsu daidai gwargwado.
2. Mai jarrabawa yana rike da alkalami a hannun dama, ya rufe idonsa na dama, ya bude idonsa na hagu, ya rike wata fitila mai nau’in alkalami a hannunsa na hagu sannan ya sanya ta karkashin fatar idon na hagu na kasa, sannan ya ce wa mai binciken. kalli idon hagu na mai duba.Alama tsakanin ɗalibai tare da layin giciye akan samfurin gilashin dangane da tunani daga tsakiyar ɗalibin abin da ake magana.Tsayin nisa daga mahadar layin giciye zuwa ƙananan gefen firam ɗin shine tsayin ɗalibi na idon dama na abin magana.
3. Mai jarrabawa ya rike alama a hannunsa na dama, ya rufe idonsa na hagu, ya bude idonsa na dama, ya rike fitilar alkalami a hannunsa na hagu sannan ya sanya shi karkashin fatar idonsa na kasa na dama, yana neman mai duba ya kalli dama mai binciken. ido.Alama tsakanin ɗalibai tare da layin giciye akan samfurin gilashin dangane da tunani daga tsakiyar ɗalibin abin da ake magana.Tsayin nisa daga mahadar layin giciye zuwa ƙananan gefen firam ɗin shine tsayin ɗalibin idon abin magana.
Wibada har zuwa karshe
Lenses multifocal masu ci gabasuna da tsada don yin kuma suna da ruwan tabarau masu aiki.Suna nufin mutanen da ba su da isasshen ikon daidaitawa.Ba za su iya gani sosai a kusa ba (tazarar karatu 30 cm), ko da idanu tsirara ko sanye da tabarau, ko kuma ba za su iya gani sosai a kusa da kewayon aiki ba., Ya kamata ku sa gilashin cikin lokaci ko buƙatar canza gilashin.Ya kamata a lura a nan cewa ka'idar saka gilashin don presbyopia ita ce mafi kyawun gani da kuma mafi girman digiri, tabbatar da abubuwa masu tsabta da kuma rage nauyin gajiyar ido wanda ke haifar da hangen nesa kusa kamar yadda zai yiwu.
Lokacin aikawa: Dec-08-2023