Me mōhio pū rānei tātou ki te uaua whatu e whakakaha ana i tō tātou tirohanga?

Me pēhea tāu pānui i tēnei tuhinga? Me pēhea tāu tirohanga ki ngā mea ataahua o te ao e karapoti nei i a koe, arā, ngā mata o ō hoa aroha? Kei muri i ēnei mea katoa he hononga whakamiharo i waenganui i ō tātou kanohi me tō tātou roro. Ko te mea matua e hanga ana i taua hononga, e mahi ana pērā i te 'taura raraunga', ko te io whatu, te io whatu rānei. Me kōrero noa tātou mō tēnei i tēnei rā.

He aha rawa te Io Whatunga?

He kupu ngāwari noa iho, ko te io whatu he paihere o ngā miriona muka io, he rite ki te taura i hangaia mai i ngā waea hiko maha. Ka tīmata ēnei io i muri i ō tātou kanohi, ka hono tika ki tō tātou roro.

Koinei te huarahi māmā ki te whakaaro me pēhea te mahi.

• He rite tō kanohi ki te kāmera.
• He rite te retina, kei muri o te kanohi, ki te pūoko o tēnei kāmera. Ka kitea te mārama, ā, ka hurihia ngā tohu hiko e kitea ana e tātou.
• He rite te io whatu ki te taura e hono ana i te kāmera me te rorohiko. Arā, ko ngā tohu hiko e puta ana i roto i te retina ka haria ki te 'rorohiko' e kiia nei ko te roro mā roto i tēnei io whatu.

Koinei te tuarua o ngā io angaanga 12 e hono tika ana ki tō tātou roro. Engari he rerekē tēnei i ngā io kē atu. Nā te mea, e kiia ana he wāhanga o tō tātou Pūnaha Io Matua (CNS) , arā, ko te roro me te taurakira. Nō te Pūnaha Io Taipitopito (PNS) ngā io angaanga kē atu.

Kei hea tēnei io whatu?

He ahua uaua te haerenga o ēnei io e rua, e tīmata ana i muri i ō kanohi ka haere ki tō roro. Ko te tikanga o te haerenga penei:

1. Te Awa Tirohanga: Tuatahi, ka uru tēnei io ki roto i tō tātou angaanga mā roto i tētahi kauhanga iti i hangaia ki te wheua e kiia nei ko te awa tirohanga.

2. Kia uru ki roto i te angaanga, ka tūtaki ngā io o ngā kanohi e rua ki tētahi hononga āhua-Y. I konei ka puta he mea whakamiharo. Ka huri ētahi o ngā muka io o te kanohi matau ki te taha maui, ā, ka huri ētahi o ngā muka io o te kanohi maui ki te taha matau.

3. Roro: Whai muri i tēnei hononga, ka haere tika ngā muka io ki te cortex tirohanga , he wāhi kei muri o te roro. Koinei te wāhi e whakamāramahia ai, e tātarihia ai hoki e tātou ngā mea e kitea ana e tātou he "pikitia". Mā tēnei whakawhiti io ka taea e tātou te whakakotahi i ngā whakaahua mai i ngā kanohi e rua ki roto i tētahi whakaahua 3D kotahi, mārama.

He mahi anō kei tua atu i te tirohanga?

Āe, tino tika. I te huarahi ki te roro, ka peka atu tētahi wāhanga iti o ēnei muka io ki ētahi atu wāhi. He mea nui ēnei mō ngā mea pēnei i:

• Ngā Whakaata o ngā Ākonga: Whakaarohia mēnā ka uru ohorere koe ki te rā kanapa, ka mimiti aunoa te ākonga o ō kanohi. Ā, ina tomo koe ki tētahi rūma pōuri, ka nui haere. Ka puta tēnei hei whakahaere i te nui o te mārama e tomo ana ki te kanohi. Nā te mea me tere te mahi i tēnei tukanga, ka tukuna ngā tohu e ngā muka io e wehewehe ana.
• Te Whakaata Noho: Ina titiro koe ki tētahi pukapuka kei mua i a koe, kātahi ka titiro ohorere atu ki tētahi rākau i tawhiti, ka mārama ake te rākau. Nā te mea ka huri te āhua o te karu arotahi i roto i te kanohi, ka taea ai e ia te arotahi ki ngā mea tawhiti me ngā mea tata. Kei roto hoki i te io whatu te whakahaere i tēnei tukanga.
• Te Rītatanga o te Ao: Ki te whakarāpopototanga, koinei te 'karaka koiora' o tō tātou tinana. Mā tēnei karaka e whakahaere te wā e moe ai tātou, te wā e ara ake ai tātou, me te āhua o te rerekētanga o te pāmahana me te toto toto i ngā wā rerekē o te rā. Mā ngā mōhiohio e pā ana ki te mārama e haere ana ki te roro mā te io whatu ka āwhina i tēnei karaka ki te wehewehe i waenganui i te ao me te pō.

He aha ngā āhuatanga ka pā ki te io whatu?

Engari, he maha ngā āhuatanga hauora ka kino pea tēnei io nui. Ko ētahi o ēnei kua whakarārangihia ki te ripanga i raro nei.

Ngā tohu noa o te raruraru o te io whatu

Ina he raruraru kei te io whatu, ka puta ngā tohu maha. He wā poto, he wā pumau rānei ēnei.

Ko ētahi o ngā tohu e kitea whānuitia ana ko:

• Te tirohanga pōuri.
• He uaua ki te kite i ngā tae, ki te kite rānei i ngā tae i roto i ngā huarahi rerekē.
• Te kite i ngā ira pango, i ngā āputa rānei i te tirohanga (Ngā Ira Matapo) .
• Te mamae o ngā kanohi, ina koa i te wā e nekehia ana ngā kanohi.
• Te kitenga i ngā mea e rua i te wā kotahi (Tirohanga Takirua / Tirohanga Matarua) .
• Te kitenga i ngā hihi mārama i mua i ngā kanohi (photopsias) .
• Te hekenga o te tirohanga ā-taha.
• Te hekenga ohorere, te ngaronga katoa rānei o te tirohanga.

Me pēhea tātou e tiaki ai i tō tātou io whatu?

He maha ngā mea ka taea e tātou te mahi hei tiaki i tēnei io utu nui me tō tātou tirohanga.

• Whakamātautauhia ō kanohi i ia wā: Ahakoa kāore koe e hiahia ki te mau mōhiti, mā te tirotiro i ō kanohi i te iti rawa kotahi i te tau ka āwhina i te kite wawe i ngā mate pēnei i te glaucoma.
• Kia mau ki te taumaha hauora: He pai te whakahaere i te taumaha tinana mō te hauora whānui me ngā kanohi hoki.
• Kai i tētahi kai taurite: Kai i ngā kai kei roto ngā huaora (ina koa ko ngā huaora B) me ngā kohuke (hei tauira, te parahi) he mea nui mō te hauora o ngā io.
• Te whakahaere i ētahi atu mate: Mena kei a koe ngā mate pēnei i te mate huka , te toto toto tiketike rānei, whakahaerehia pai aua mate kia rite ki ngā tohutohu a tō tākuta.He mea tino nui. Ka taea e ēnei mate te whakararu nui i ngā kanohi me te io whatu.
• Āta karohia te kai hikareti: Ka pakaru ngā uaua toto ngoikore e tuku toto ana ki te io whatu i te kai hikareti me te whakamahi i ētahi atu hua tupeka.
• Tiakina ō kanohi me tō mahunga: Mauria he potae me he mōhiti haumaru i te wā e takaro ana i ngā hākinakina, e whakamahi ana i ngā mīhini, e eke pahikara ana rānei.

Āhea ahau me toro atu ki te tākuta?

Ki te kite koe i tētahi panonitanga āta haere o tō tirohanga, he mamae kanohi, he pōuri rānei te tirohanga, me toro atu ki tō tākuta , ki tētahi tākuta kanohi rānei i te wā e taea ai.

Heoi, ki te pā mai he panoni ohorere o te tirohanga, he ngaro rānei te tirohanga, kaua e warewaretia. He āhuatanga ohorere hauora pea tēnei. Haere tonu ki te Tari Ohorere (ETU) o te hōhipera tata.

He hononga whakamiharo tēnei i waenganui i ō tātou kanohi me tō tātou roro, te io whatu, he mea e warewarehia ana e tātou. Engari he mea nui te pupuri i te hauora o tēnei io kia pai ai tātou ki te ataahua o ō tātou oranga. Mena he āwangawanga āu mō tō tirohanga, kaua e mangere ki te kōrero ki te tākuta mō tēnei mea.