Kitenga piringa

Ka kia oti rawa tuhinga o to tatou i tenei ra ki te kite, me tona mahi. Kua kite mātou pehea te taputapu ataata e he kite piringa, me te koki mātakitaki he wātea ki te tinana tangata.

Ko tētahi o nga mahi o te mahi o te taputapu ataata ko te kite piringa. Kawenga mō te reira wahi piringa o te etine. Ko te tohu matua o tona kakama - te koki tangata o tirohanga. Kei roto te reira i taua wahi o te wāhi, e rarawhi te kanohi tangata ki te warea, u tonu, i runga i te tumu parau. whakaaro te mahi matua o te whakakitenga piringa te takotoranga i roto i te wāhi.

Whakaatu mara o te tirohanga he uara motuhake, whakatau nga rohe o te etine. tauhohe te kanohi ki te tae ma i roto i te rohe e whai ake nei: waho - 90º, he maha waho - 70º, maha atu i roto - 55º, roto - 55º, ki raro i roto - 50º, ki raro - 65º, ki raro waho - 90º. i huaina "Tuhinga" o te wāhanga takitahi te kararehe. I roto i te rohe pae tino o te mara o te tirohanga kua reira he scotoma whaiaroaro - he pera-ka karanga "wahi matapo". Ko reira māori me te aroaro angioskotom - rīpene-āhua "pea nā" i roto i te mara o te tirohanga e pā ana ki te aroaro o oko retikalnyh nui, kati te pūtau photoreceptor. Ratou aroaro paku anake impairs kitenga piringa a kua whakaaro reira te täkupu.

He pūmau, oti ki "mate" o te wahi, me te whanaunga Scotoma - he ino i tohua i roto i te mahi ataata i roto i te wā uiui,. I roto i te tahuri, e wehea enei momo e rua ki scotoma pai, me te kino. Te pai o taea te kitea i runga i to ratou ake: he kitea rite wahi pouri i roto i te ratou mara ataata, e tohu kino ki te etine. e kore e scotoma tōraro taua hua kitea me puta rite ki te hua o ngā huarahi kino. Kei te nuinga o tāutuhia ratou i roto i te rangahau. He scotoma scintillating. Ka rite ki te tikanga, e kore e ratou ahua whai tetahi pūnaha, me te he tino māhorahora. Ki te he manawanui ki te kanohi kati e matakitaki ana rārangi kōpekapeka taemaha totoro hoki whakakitenga piringa, puta reira spasm o oko kaka. Hei aukati i tenei tukanga me te whakapai ake o te āhuatanga, tūtohu tīmata tonu tākuta tango taero antispasmodic.

Ka taea te whakarōpūtia Scotoma i runga i te wāhi o te wahi e whai ake:

• piringa;
• paracentral;
• pokapū.

Kei raro, tapaea tatou he rārangi o ngā raruraru kitenga e whai wāhi ki te ino o te perception ataata piringa.

Whāiti o te parae o te whakakitenga i runga i taha katoa ki runga ki te 5 - 10 nekehanga ko te hua o te whakangaromanga o te karere, me te ma'ii'o tuaroa. huaina ana tēnei āhuatanga ko te hukihuki concentric o te mara ataata. Tikanga, i roto i te āhuatanga i taua, kite he tangata tonu a taea noa te pānui i, engari te kaha ki te takoto ia i roto i te wāhi riro rawa a tino taumaha kite.

I roto i taua take, ki te mea kua ngaro te manawanui pae arotake hangarite, he mea e tika ana ki te whakatutuki ki te tohunga mo te hi'opo'a maitai. Taua tohu maha tohu te aroaro o te puku o te manawanui, toto, me te tahi atu mate nui. I roto i te tīmatanga o te pukupuku, me inflammations taea te tohua mate o wahi anake o te arotake, ngaro t. E. e pā ana ki tetahi wha o te mara o te tirohanga. I roto i te māuiuitanga o te etine, kia ngaro ai kite i roto i ngā wāhi rerekē. Hei tauira, papahewa vāofi te mara o tirohanga o te taha nasal.

Te tātari i te pūāhua whakawhāiti te mara o te tirohanga, ka taea e te kaimahi mohio whakatau te localization o pāpaka i roto i ngā wāhanga rerekē o te huarahi ataata, me te te tohu o pāpaka degenerative wāhanga papahewa, me ētahi atu tawhā.