Skip to main content

He uaua ki te mārama ki ngā mea i te taha tata? Me kōrero tātou mō te 'Tirohanga Hōhonu'!

He uaua ki te mārama ki ngā mea i te taha tata? Me kōrero tātou mō te 'Tirohanga Hōhonu'!

Kua raru koe i mua ki te whakatau i te tawhiti o te motuka kei mua i a koe i a koe e hikoi ana i te rori? Kua toro atu rānei koe ki te karāhe wai i runga i te tēpu, ā, ka hinga? Kāore rānei koe i te mōhio ki te wāhi tika hei hikoi i a koe e heke ana i te arawhata. Tērā pea ka pā mai ēnei āhuatanga ki a tātou i ētahi wā. Ko te take matua mō tēnei he rerekētanga paku te kaha o ō tātou kanohi ki te whakatau tika i te tawhiti, te rahi, me te hohonu o tētahi mea, e kiia nei ko te 'tirohanga hohonu'.

He aha te Tirohanga Hōhonu?

Ki te kī ngāwari, ko te tirohanga hōhonu ko tō tātou kaha ki te kite i ngā mea i roto i ngā āhua-toru (3D). Arā, ka āwhina i a tātou ki te mārama ehara i te mea ko te teitei me te whānui o tētahi mea anake, engari ko tōna hōhonutanga, tōna tawhiti mai i a tātou, me tōna rahi. Ehara tēnei i te mea noa iho, he mea whakamiharo rawa atu e mahi tahi ana ngā wāhanga maha o ō tātou kanohi me te roro.

Whakaarohia kei te pānui koe i tēnei tuhinga i runga i tō waea. Kāore te mata o te waea me te tuhinga i runga i te taumata kotahi, he papatahi ki a koe. Ka kite koe kei runga i te mata te tuhinga, ā, kei roto i tō ringaringa te waea. Ko taua āheinga e āwhina ana i a tātou ki te kite i ngā mea i roto i ngā āhuatanga e toru (3D) koia te mea e kiia nei e tātou ko te tirohanga hōhonu. Ki te kore tēnei āheinga, ka rite te ao katoa e kitea ana e tātou ki tētahi pikitia papatahi.

He aha te hiranga o te tirohanga hōhonu ki a tātou?

Ehara i te mea ko te kite noa i ngā mea ataahua te kaupapa. He mea tino nui hoki mō te haumaru o ō tātou oranga o ia rā .

  • I te wā e taraiwa ana: He mea nui tēnei pūkenga hei mārama ki te tawhiti ki te waka kei mua, te tawhiti ki te tangata e whiti ana i te rori, me te mea he wāhi kei reira ina tū te waka.
  • I te wā e hikoi ana i te tiriti: Me whakamahi tēnei ina piki, ina heke iho i ngā arawhata, ina karohia he poka i te tiriti, ina neke hoki i roto i te mano.
  • I te wā e tākaro ana: Whakaarohia te tākaro kirikiti. Me mārama te hohonu ki te wā e whiua ai te pōro e haere mai ana, te tere o te pōro, me te wāhi hei hopu.

I te whakarapopototanga, ka āwhina tēnei pūkenga i a tātou ki te mārama ki te taunga me te tawhiti o ngā mea i roto i te nuinga o ngā mahi e mahia ana e tātou.

He pēhea te mahi a tēnei mea e kīia nei ko te tirohanga hōhonu?

He tukanga uaua tēnei, engari kia māmā noa iho. He wāhanga tēnei o tā mātou pūnaha e kiia nei ko te 'Ara Tirohanga'. E whai ake nei:

1. Te mārama e tomo ana ki te kanohi: Tuatahi, ka tomo te mārama mai i te mea e kitea ana e tātou ki roto i ō tātou kanohi.

2. Te Retina me te Io Whatu: Ka tau te mārama ki te retina , he mata kei muri o te kanohi, ā, ka hurihia aua mōhiohio hei tohu hiko. Kātahi ka tukuna ēnei tohu ki tō tātou io whatu .

3. Te tīma whatu: Ka huihui ngā io whatu o ō tātou kanohi e rua i te āhua o te 'X' i mua o te roro. Ka kiia tēnei ko teKo tōna ingoa ko te Optic Chiasm.

4. Te roro tirohanga: Hei whakamutunga, ka tukuna ēnei mōhiohio ki te wāhanga o te roro e aro ana ki te tirohanga, arā, te roro tirohanga , e whakakotahi ana i ngā whakaahua o ngā kanohi e rua, e tātari ana i ngā rerekētanga iti o aua whakaahua, ā, ka hangaia te whakaahua toru-ahu (3D) katoa e kitea ana e tātou.

I te nuinga o te wā, me whai kanohi e rua, arā, te tirohanga rua-kanohi , kia tika ai te kite i te hohonu. Ina titiro tātou ki ngā kanohi e rua, ka kite tātou i te mea kotahi mai i ngā koki iti e rua, nō reira he māmā ake mā te roro te tatau tika i te tawhiti me te hohonu. Heoi, ahakoa mō te tangata kotahi anake te kanohi (tirohanga kotahi-kanohi) , ka taunga te roro ki tēnei āhuatanga i roto i te wā, ā, ka taea e ia te kite i te hohonu ki tētahi taumata. Heoi, kāore pea i te tino mārama pērā i te wā e titiro ana tātou ki ngā kanohi e rua.

He aha ngā āhuatanga hauora noa e pā ana ki te tirohanga hōhonu?

Mena he raruraru kei ō tātou kanohi, kei te tukatuka tirohanga rānei i roto i tō tātou roro, ka pā pea ki tō tātou tirohanga hōhonu. Anei ētahi āhuatanga noa.

Āhuatanga hauora Hei whakarāpopototanga...
Te Tirohanga Iti Ko ngā raruraru tirohanga pēnei i te tirohanga tawhiti me te tirohanga tata ka ārai i ngā kanohi ki te tuku whakaahua mārama ki te roro, ka uaua ai te kite i te hohonu.
Matapōkere Kāore ngā kanohi e anga ana ki te ahunga kotahi, engari kua tahuri tetahi kanohi ki tētahi ahunga rerekē. Nā tēnei ka uaua ki te roro te whakakotahi i ngā whakaahua e rua, ka hanga he whakaahua 3D.
Kanohi mangere (Amblyopia) He ngoikore rawa te tirohanga o te kanohi kotahi i te kanohi kē. Nā tēnei ka kore e aro te roro ki ngā tohu mai i te kanohi ngoikore. Ka pā hoki tēnei ki te tirohanga hōhonu.
Ngā whara kanohiKi te puta he aituā e kino ai te kanohi, inā koa te io whatu, ka raru pea ngā mōhiohio e tae atu ana ki te roro, ā, ka ngaro pea te tirohanga hōhonu.

Me pēhea taku mōhio mēnā he raruraru tōku ki taku tirohanga hōhonu?

Ki te kite koe i ētahi panonitanga o tō tirohanga, kia tūpato koe. Ki te pāngia koe e ēnei tohu, he pai ake te toro atu ki te tākuta .

Kia tupato ki ēnei tohu.
Te tirohanga pōuri Mena he pōuri te āhua o ngā mea, ā, kāore e kitea mārama.
Te tirohanga takirua (Diplopia) Ki te mea he rite te āhua o tētahi mea ki ētahi mea e rua.
He mamae kanohi hou He mamae kanohi e puta ana kāore he take, ā, e kore e memeha i roto i ngā rā torutoru.
Te aro ki te mārama Ki te mea he kikorangi te āhua o ō kanohi ahakoa i roto i te mārama noa.
Te ngoikore o te tirohanga Ki te mea kei te kite koe kei te kino haere tō tirohanga.

Ka heke te māramatanga o te hohonutanga i te pō?

He pātai tēnei e pātaihia ana e te tini tāngata. Ahakoa he iti ake te tirohanga i te pō nā te kore o te māramatanga, kaua e whakaitihia tō tātou kaha ki te kite i te hohonutanga. Arā, me taea e tātou te mārama ki te tawhiti me te rahi o tētahi mea ahakoa i te pō.

Engari, ki te kino rawa atu tō tirohanga pō i ērā atu, ā, ka uaua ai te taraiwa, he tohu pea tēnei nō te mate e kiia nei ko te 'matapo pō' (Nyctalopia) . Ki te pāngia koe e tēnei , me toro atu ki te tākuta tonu..

He aha ngā maimoatanga mō ēnei raruraru?

I te nuinga o te wā, he tino māmā te otinga: whakatikatika i tō tirohanga.

  • Ngā mōhiti, ngā karāhe whakapā rānei: Mena kāore anō koe kia mau mōhiti i mua, tera pea ka hiahia koe ki ngā mōhiti, ki ngā karāhe whakapā rānei. Mena kua mau kē koe i ēnei, me whakarerekē pea tō whakahaunga.
  • Te rongoā i te mate pūtake: Mena he mate hauora anō tōu, pērā i te strabismus, ka whakamāramahia e tō tākuta te maimoatanga e tika ana (tērā pea he korikori tinana, he pokanga rānei) mōna.

Me pēhea tātou e tiaki ai i ō tātou kanohi?

  • Ki te kite koe i tētahi panonitanga o tō tirohanga, ahakoa he iti noa iho, kōrero ki tō tākuta.
  • Ki te mau mōhiti koe, me tirotiro tonu ō kanohi, ā, me whakahou anō hoki tō whakahaunga rongoā.
  • I a koe e takaro ana i ngā hākinakina, e mahi ana rānei i ngā mahi e mōrearea ana ki ō kanohi (hei tauira, te whakarewa, te kani rakau), mauria he mōhiti haumaru e tau ana ki a koe.

He aha ngā wā pai rawa atu hei toro atu ki te tākuta?

He mea tino nui tēnei. Tirohia te tākuta ina kite koe i ngā panonitanga o tō tirohanga. Kaua e whakaaro noa, "Ka memeha haere tēnei i roto i ētahi rā." He mea ngāwari noa iho pea, engari he tohu tuatahi pea tēnei o tētahi mate kino. Nō reira kaua e tatari kia kino haere ō tohumate.

Ko te mea nui, ki te ngaro whakarere tō tirohanga, ki te mamae nui rānei ō kanohi, me haere tonu ki te Tari Whawhati Tata (ETU) o te hōhipera tata.

He pūkenga nui tō tātou kite hohonu e homai ana ki a tātou he nui ngā mōhiotanga mō te taiao e karapoti nei i a tātou mā roto i ō tātou kanohi. Ki te kore, ka papatahi, ka kore he āhua o te ao e kitea ana e tātou. Nō reira, tiakina ō kanohi. Kaua e warewarehia te panonitanga iti o tō tirohanga.

Karere Tangohia ki te Kāinga

  • He pūkenga nui te kite i te hohonu e āwhina ana i a tātou ki te kite i te ao i te 3D me te mārama ki te tawhiti me te rahi o ngā mea.
  • E hiahiatia ana kia hauora ngā kanohi me te roro, kia mahi tahi ai hoki.
  • Mena kei a koe ngā tohu pēnei i te tirohanga pōuri, te tirohanga takirua, te mamae kanohi hou rānei, kaua e warewaretia.
  • He maha ngā wā ka taea te whakatika i ēnei raruraru mā te whakamahi i ngā mōhiti tika, i ngā karaihe whakapā rānei.
  • Ki te kite koe i ētahi panonitanga ki tō tirohanga, me toro atu ki te tākuta i taua wā tonu.Mēnā ka ngaro ohorere te tirohanga, ka mamae nui rānei, me haere tonu ki te ETU.

Te kitenga hōhonu, te kitenga hōhonu, te tirohanga 3D, te tirohanga, ngā mate kanohi, te karu pōuri, te matapōkere, te āmiopia, te diplopia, te tirohanga pōuri

Frequently Asked Questions (FAQ)

Ka heke te māramatanga o te hohonutanga i te pō?

He pātai tēnei e pātaihia ana e te tini tāngata. Ahakoa he iti ake te tirohanga i te pō nā te kore o te māramatanga, kaua e whakaitihia tō tātou kaha ki te kite i te hohonutanga. Arā, me taea e tātou te mārama ki te tawhiti me te rahi o tētahi mea ahakoa i te pō.

⚠️ Important: The medical articles and information on Nirogi Lanka are for general awareness only, and are by no means a substitute for professional medical advice, diagnosis, or treatment. For any medical problem you have, consult a qualified physician immediately.

💬 Comments (0)

Kaore ano kia tukuna he korero. Tāpirihia to korero ki konei mo te wa tuatahi.

Tāpirihia to korero

Tātaihia koa: 8 + 8 =
He uaua ki te mārama ki ngā mea i te taha tata? Me kōrero tātou mō te 'Tirohanga Hōhonu'!

He uaua ki te mārama ki ngā mea i te taha tata? Me kōrero tātou mō te 'Tirohanga Hōhonu'!

Kua raru koe i mua ki te whakatau i te tawhiti o te motuka kei mua i a koe i a koe e hikoi ana i te rori? Kua toro atu rānei koe ki te karāhe wai i runga i te tēpu, ā, ka hinga? Kāore rānei koe i te mōhio ki te wāhi tika hei hikoi i a koe e heke ana i te arawhata. Tērā pea ka pā mai ēnei āhuatanga ki a tātou i ētahi wā. Ko te take matua mō tēnei he rerekētanga paku te kaha o ō tātou kanohi ki te whakatau tika i te tawhiti, te rahi, me te hohonu o tētahi mea, e kiia nei ko te 'tirohanga hohonu'.

He aha te Tirohanga Hōhonu?

Ki te kī ngāwari, ko te tirohanga hōhonu ko tō tātou kaha ki te kite i ngā mea i roto i ngā āhua-toru (3D). Arā, ka āwhina i a tātou ki te mārama ehara i te mea ko te teitei me te whānui o tētahi mea anake, engari ko tōna hōhonutanga, tōna tawhiti mai i a tātou, me tōna rahi. Ehara tēnei i te mea noa iho, he mea whakamiharo rawa atu e mahi tahi ana ngā wāhanga maha o ō tātou kanohi me te roro.

Whakaarohia kei te pānui koe i tēnei tuhinga i runga i tō waea. Kāore te mata o te waea me te tuhinga i runga i te taumata kotahi, he papatahi ki a koe. Ka kite koe kei runga i te mata te tuhinga, ā, kei roto i tō ringaringa te waea. Ko taua āheinga e āwhina ana i a tātou ki te kite i ngā mea i roto i ngā āhuatanga e toru (3D) koia te mea e kiia nei e tātou ko te tirohanga hōhonu. Ki te kore tēnei āheinga, ka rite te ao katoa e kitea ana e tātou ki tētahi pikitia papatahi.

He aha te hiranga o te tirohanga hōhonu ki a tātou?

Ehara i te mea ko te kite noa i ngā mea ataahua te kaupapa. He mea tino nui hoki mō te haumaru o ō tātou oranga o ia rā .

  • I te wā e taraiwa ana: He mea nui tēnei pūkenga hei mārama ki te tawhiti ki te waka kei mua, te tawhiti ki te tangata e whiti ana i te rori, me te mea he wāhi kei reira ina tū te waka.
  • I te wā e hikoi ana i te tiriti: Me whakamahi tēnei ina piki, ina heke iho i ngā arawhata, ina karohia he poka i te tiriti, ina neke hoki i roto i te mano.
  • I te wā e tākaro ana: Whakaarohia te tākaro kirikiti. Me mārama te hohonu ki te wā e whiua ai te pōro e haere mai ana, te tere o te pōro, me te wāhi hei hopu.

I te whakarapopototanga, ka āwhina tēnei pūkenga i a tātou ki te mārama ki te taunga me te tawhiti o ngā mea i roto i te nuinga o ngā mahi e mahia ana e tātou.

He pēhea te mahi a tēnei mea e kīia nei ko te tirohanga hōhonu?

He tukanga uaua tēnei, engari kia māmā noa iho. He wāhanga tēnei o tā mātou pūnaha e kiia nei ko te 'Ara Tirohanga'. E whai ake nei:

1. Te mārama e tomo ana ki te kanohi: Tuatahi, ka tomo te mārama mai i te mea e kitea ana e tātou ki roto i ō tātou kanohi.

2. Te Retina me te Io Whatu: Ka tau te mārama ki te retina , he mata kei muri o te kanohi, ā, ka hurihia aua mōhiohio hei tohu hiko. Kātahi ka tukuna ēnei tohu ki tō tātou io whatu .

3. Te tīma whatu: Ka huihui ngā io whatu o ō tātou kanohi e rua i te āhua o te 'X' i mua o te roro. Ka kiia tēnei ko teKo tōna ingoa ko te Optic Chiasm.

4. Te roro tirohanga: Hei whakamutunga, ka tukuna ēnei mōhiohio ki te wāhanga o te roro e aro ana ki te tirohanga, arā, te roro tirohanga , e whakakotahi ana i ngā whakaahua o ngā kanohi e rua, e tātari ana i ngā rerekētanga iti o aua whakaahua, ā, ka hangaia te whakaahua toru-ahu (3D) katoa e kitea ana e tātou.

I te nuinga o te wā, me whai kanohi e rua, arā, te tirohanga rua-kanohi , kia tika ai te kite i te hohonu. Ina titiro tātou ki ngā kanohi e rua, ka kite tātou i te mea kotahi mai i ngā koki iti e rua, nō reira he māmā ake mā te roro te tatau tika i te tawhiti me te hohonu. Heoi, ahakoa mō te tangata kotahi anake te kanohi (tirohanga kotahi-kanohi) , ka taunga te roro ki tēnei āhuatanga i roto i te wā, ā, ka taea e ia te kite i te hohonu ki tētahi taumata. Heoi, kāore pea i te tino mārama pērā i te wā e titiro ana tātou ki ngā kanohi e rua.

He aha ngā āhuatanga hauora noa e pā ana ki te tirohanga hōhonu?

Mena he raruraru kei ō tātou kanohi, kei te tukatuka tirohanga rānei i roto i tō tātou roro, ka pā pea ki tō tātou tirohanga hōhonu. Anei ētahi āhuatanga noa.

Āhuatanga hauora Hei whakarāpopototanga...
Te Tirohanga Iti Ko ngā raruraru tirohanga pēnei i te tirohanga tawhiti me te tirohanga tata ka ārai i ngā kanohi ki te tuku whakaahua mārama ki te roro, ka uaua ai te kite i te hohonu.
Matapōkere Kāore ngā kanohi e anga ana ki te ahunga kotahi, engari kua tahuri tetahi kanohi ki tētahi ahunga rerekē. Nā tēnei ka uaua ki te roro te whakakotahi i ngā whakaahua e rua, ka hanga he whakaahua 3D.
Kanohi mangere (Amblyopia) He ngoikore rawa te tirohanga o te kanohi kotahi i te kanohi kē. Nā tēnei ka kore e aro te roro ki ngā tohu mai i te kanohi ngoikore. Ka pā hoki tēnei ki te tirohanga hōhonu.
Ngā whara kanohiKi te puta he aituā e kino ai te kanohi, inā koa te io whatu, ka raru pea ngā mōhiohio e tae atu ana ki te roro, ā, ka ngaro pea te tirohanga hōhonu.

Me pēhea taku mōhio mēnā he raruraru tōku ki taku tirohanga hōhonu?

Ki te kite koe i ētahi panonitanga o tō tirohanga, kia tūpato koe. Ki te pāngia koe e ēnei tohu, he pai ake te toro atu ki te tākuta .

Kia tupato ki ēnei tohu.
Te tirohanga pōuri Mena he pōuri te āhua o ngā mea, ā, kāore e kitea mārama.
Te tirohanga takirua (Diplopia) Ki te mea he rite te āhua o tētahi mea ki ētahi mea e rua.
He mamae kanohi hou He mamae kanohi e puta ana kāore he take, ā, e kore e memeha i roto i ngā rā torutoru.
Te aro ki te mārama Ki te mea he kikorangi te āhua o ō kanohi ahakoa i roto i te mārama noa.
Te ngoikore o te tirohanga Ki te mea kei te kite koe kei te kino haere tō tirohanga.

Ka heke te māramatanga o te hohonutanga i te pō?

He pātai tēnei e pātaihia ana e te tini tāngata. Ahakoa he iti ake te tirohanga i te pō nā te kore o te māramatanga, kaua e whakaitihia tō tātou kaha ki te kite i te hohonutanga. Arā, me taea e tātou te mārama ki te tawhiti me te rahi o tētahi mea ahakoa i te pō.

Engari, ki te kino rawa atu tō tirohanga pō i ērā atu, ā, ka uaua ai te taraiwa, he tohu pea tēnei nō te mate e kiia nei ko te 'matapo pō' (Nyctalopia) . Ki te pāngia koe e tēnei , me toro atu ki te tākuta tonu..

He aha ngā maimoatanga mō ēnei raruraru?

I te nuinga o te wā, he tino māmā te otinga: whakatikatika i tō tirohanga.

  • Ngā mōhiti, ngā karāhe whakapā rānei: Mena kāore anō koe kia mau mōhiti i mua, tera pea ka hiahia koe ki ngā mōhiti, ki ngā karāhe whakapā rānei. Mena kua mau kē koe i ēnei, me whakarerekē pea tō whakahaunga.
  • Te rongoā i te mate pūtake: Mena he mate hauora anō tōu, pērā i te strabismus, ka whakamāramahia e tō tākuta te maimoatanga e tika ana (tērā pea he korikori tinana, he pokanga rānei) mōna.

Me pēhea tātou e tiaki ai i ō tātou kanohi?

  • Ki te kite koe i tētahi panonitanga o tō tirohanga, ahakoa he iti noa iho, kōrero ki tō tākuta.
  • Ki te mau mōhiti koe, me tirotiro tonu ō kanohi, ā, me whakahou anō hoki tō whakahaunga rongoā.
  • I a koe e takaro ana i ngā hākinakina, e mahi ana rānei i ngā mahi e mōrearea ana ki ō kanohi (hei tauira, te whakarewa, te kani rakau), mauria he mōhiti haumaru e tau ana ki a koe.

He aha ngā wā pai rawa atu hei toro atu ki te tākuta?

He mea tino nui tēnei. Tirohia te tākuta ina kite koe i ngā panonitanga o tō tirohanga. Kaua e whakaaro noa, "Ka memeha haere tēnei i roto i ētahi rā." He mea ngāwari noa iho pea, engari he tohu tuatahi pea tēnei o tētahi mate kino. Nō reira kaua e tatari kia kino haere ō tohumate.

Ko te mea nui, ki te ngaro whakarere tō tirohanga, ki te mamae nui rānei ō kanohi, me haere tonu ki te Tari Whawhati Tata (ETU) o te hōhipera tata.

He pūkenga nui tō tātou kite hohonu e homai ana ki a tātou he nui ngā mōhiotanga mō te taiao e karapoti nei i a tātou mā roto i ō tātou kanohi. Ki te kore, ka papatahi, ka kore he āhua o te ao e kitea ana e tātou. Nō reira, tiakina ō kanohi. Kaua e warewarehia te panonitanga iti o tō tirohanga.

Karere Tangohia ki te Kāinga

  • He pūkenga nui te kite i te hohonu e āwhina ana i a tātou ki te kite i te ao i te 3D me te mārama ki te tawhiti me te rahi o ngā mea.
  • E hiahiatia ana kia hauora ngā kanohi me te roro, kia mahi tahi ai hoki.
  • Mena kei a koe ngā tohu pēnei i te tirohanga pōuri, te tirohanga takirua, te mamae kanohi hou rānei, kaua e warewaretia.
  • He maha ngā wā ka taea te whakatika i ēnei raruraru mā te whakamahi i ngā mōhiti tika, i ngā karaihe whakapā rānei.
  • Ki te kite koe i ētahi panonitanga ki tō tirohanga, me toro atu ki te tākuta i taua wā tonu.Mēnā ka ngaro ohorere te tirohanga, ka mamae nui rānei, me haere tonu ki te ETU.

Te kitenga hōhonu, te kitenga hōhonu, te tirohanga 3D, te tirohanga, ngā mate kanohi, te karu pōuri, te matapōkere, te āmiopia, te diplopia, te tirohanga pōuri

Frequently Asked Questions (FAQ)

Ka heke te māramatanga o te hohonutanga i te pō?

He pātai tēnei e pātaihia ana e te tini tāngata. Ahakoa he iti ake te tirohanga i te pō nā te kore o te māramatanga, kaua e whakaitihia tō tātou kaha ki te kite i te hohonutanga. Arā, me taea e tātou te mārama ki te tawhiti me te rahi o tētahi mea ahakoa i te pō.

⚠️ Important: The medical articles and information on Nirogi Lanka are for general awareness only, and are by no means a substitute for professional medical advice, diagnosis, or treatment. For any medical problem you have, consult a qualified physician immediately.

💬 Comments (0)

Kaore ano kia tukuna he korero. Tāpirihia to korero ki konei mo te wa tuatahi.

Tāpirihia to korero

Tātaihia koa: 8 + 8 =