Te tukanga whakauru maha-focal haere tonu
1. Kōrerohia ō hiahia tirohanga, kia mārama hoki, ā, pātai atu mō ō hītori mōhiti, tō mahi, me ngā whakaritenga mō ngā mōhiti hou.
2. Te ine i ngā kanohi mā te rorohiko me te ine i te tawhiti i waenga i ngā karu kotahi.
3. Ko te whakamātautau tirohanga mō ngā mōhiti tahanga/taketake, ina whakatauhia ana te diopter tawhiti, me hangai ki te diopter o ngā mōhiti taketake me ngā whakaritenga mō te tirohanga tawhiti.
4. Ko te mātāpono o te retinoscopy me te refraction subjective (tirohanga tawhiti) hei whakatau i te diopter tawhiti ko: i runga i te mātāpono o te tirohanga tawhiti e whakaaetia ana, ka taea te papaku o te myopia, ka taea te rawaka o te hyperopia, ā, ka tāpirihia te astigmatism. Kia tūpato, kia taurite hoki ō kanohi.
5. Hei whakatika i te tirohanga tawhiti, whakatikatikahia, whakaūtia hoki te arotahi mā te diopter tawhiti ki mua i ngā kanohi o te tangata, ā, tukua kia mauria e te tangata kia mōhio ai mēnā e tika ana te diopter tawhiti.
6. Te ine i te tata-presbyopia/presbyopia.
7. Whakamātauria te whakatikatika tirohanga tata, whakatikatikahia, ka whakaū.
8. Te whakataki me te whiriwhiri i ngā momo me ngā rauemi o te arotahi whakamua.
9. He mea pai kia whiriwhiria he anga. Kōwhiria te anga e rite ana kia rite ki ngā momo anga rerekēngā arotahi whakamuatāu e whiriwhiri ai, kia tino tika hoki te tawhiti poutū mai i waenganui o te anga ki te pito o raro rawa o te taha o raro o te anga.
10. Te hanga anga, ko te tawhiti i waenga i ngā mōhiti he 12~14mm. Ko te koki whakatītaha whakamua he 10°~12°.
11. Te ine i te teitei o te puāwai kanohi kotahi.
12. Te whakatau i ngā tawhā ine kiriata ahu whakamua.
13. He aratohu mō te whakamahinga o ngā karāhe arotahi whakamua. He tohu kei runga i ngā karāhe. Tirohia mēnā kei waenganui o te kamo ngā whiti, ā, whakatauhia te whakamahinga o ngā tawhiti katoa.
Kōwhiringa anga arotahi maha-whakamua
Mō te whiriwhiri i ngā anga, me mātua whiriwhiri tuatahi ko te pūwāhi pokapū o te anga ki te taha o roto o te anga o raro o te anga kia kaua e iti iho i te 22mm. Ko te teitei o te anga paerewa 18mm, 19mm rānei me ≥34mm, ā, ko te teitei o te anga poto 13.5, 14mm rānei me ≥30mm, ā, karohia te whiriwhiri i ngā anga he nui te piko o te ihu, nā te mea he ngāwari ki te "tapahi" i te wāhi pānui. Kaua e whiriwhiri i ngā anga kore-anga, he ngāwari ake te wetewete me te whakarerekē i ngā tawhā rerekē. Me whakarite hoki ki te whiriwhiri i ngā anga me ngā papa ihu ka taea te whakarite.
Te tohu arotahi maha-haere whakamua
I mua i te ine, me whakarite te anga, me whakatikatika hoki kia taurite ai. Ko te tawhiti i waenga i ngā mōhiti he 12-13mm te nuinga, ko te koki whakamua he 10-12 nekehanga, ā, he tika te roa o ngā rākau.
1. Ka noho anga atu te kaitirotiro me te tangata e tirotirohia ana, ā, ka noho tonu ō rāua tirohanga ki te taumata kotahi.
2. Ka pupuri te kaitirotiro i tētahi pene tohu i tōna ringa matau, ka kati i tōna kanohi matau, ka whakatuwhera i tōna kanohi maui, ka pupuri i tētahi rama momo pene i tōna ringa maui, ka whakatakoto ki raro i te kamo o raro o te kanohi maui, ā, ka tono atu ki te kaitirotiro kia titiro ki te kanohi maui o te kaitirotiro. Tohua te tawhiti i waenga i ngā kamo ki ngā rārangi whakawhiti i runga i te tauira mōhiti i runga i te whakaata mai i waenganui o te kamo o te tangata. Ko te tawhiti poutū mai i te whakawhitinga o ngā rārangi whakawhiti ki te taha o roto o raro o te anga ko te teitei o te kamo o te kanohi matau o te tangata.
3. Ka pupuri te kaitirotiro i tētahi tohu i tōna ringa matau, ka kati i tōna kanohi maui, ka whakatuwhera i tōna kanohi matau, ka pupuri i tētahi rama pene i tōna ringa maui, ka whakatakoto ki raro i te kamo o raro o tōna kanohi matau, me te tono atu ki te tangata tirotiro kia titiro ki te kanohi matau o te kaitirotiro. Tohua te tawhiti i waenga i ngā kamo ki ngā rārangi whakawhiti i runga i te tauira mōhiti i runga i te whakaata mai i waenganui o te kamo o te tangata. Ko te tawhiti poutū mai i te whakawhitinga o ngā rārangi whakawhiti ki te taha o raro o roto o te anga ko te teitei o te kamo o te kanohi maui o te tangata.
Wkarakia ki te mutunga
Ngā arotahi arotahi maha-whakamuaHe utu nui te hanga, ā, he karāhe mahi. He mea hāngai ēnei ki te hunga kāore i te tino kaha ki te whakarite. Kāore e taea e rātou te kite mārama i te tawhiti tata (te tawhiti pānui 30 cm), ahakoa he kanohi tahanga, he mōhiti rānei, kāore rānei e taea te kite mārama i te tawhiti tata me te tirohanga mahi. , me mau mōhiti i te wā tika, me whakawhiti mōhiti rānei. Me mārama ki konei ko te kaupapa o te mau mōhiti mō te presbyopia ko te kite pai rawa atu me te taumata teitei, me te whakarite kia mārama ngā mea me te whakaiti i te taumahatanga ngenge o te kanohi i puta mai i te tirohanga tata ki te mea ka taea.
Wā tuku: Hakihea-08-2023