Kungani abafundi kuthiwa osuke usuvulekile: Izimbangela Nemiphumela

Kuboshwe umfundi - umgodi isiyingi kule iris we iso, uhlobo diaphragm ezingashintsha ubukhulu bayo. photoreceptors ezizwelayo esweni ngokunemba Amazing aphendule izinguquko ukugeleza imisebe yokukhanya. Kuye umfutho nokukhanya imisipha ekhethekile kunciphisa noma kwandisa ubukhulu izimbobo, kanjalo ngokulungisa umthamo wokukhanya ukushaya igobolondo kwangaphakathi - i-retina. Ukushintsha ububanzi we umfundi - omunye izinkomba ebaluleke kakhulu imisebenzi kanye nesimo jikelele zobuchopho. Hhayi lutho, kunoma yisiphi ifilimu sici anikezelwe imithi eziphuthumayo, ungabona kanjani unciphise udokotela kukhanya flashlight ku iso lesiguli ukuze zenze ukuba kunyuke ukusikwa reflex we umfundi futhi ukuhlola ezingeni ukwazi.

Ukushintsha usayizi Umfundi kungenzeka kubangelwa hhayi kuphela ngezinga sokukhanyisa. Ngokwesibonelo, lapho umuntu ubona okuthile okubangela inzalo eyengeziwe, ubukhulu umfundi sishintsha ngokushesha.

Uma abafundi kuthiwa osuke usuvulekile, izizathu salokhu kungaba: a okujulile, ukuvukwa amadlingozi, ukunakwa, ubuhlungu, ukwesaba. Kodwa kukhona ukunwetshwa buhlungu njalo, eyagcina kuholela kokunqotshwa we izinzwa optic.

Lo mfundi kanye nesifo

Ukuvuleka komlomo eziphikelelayo balezi zingane, odokotela ngokuthi mydriasis. Lesi simo singaba ebangelwa izidakamizwa ezinamandla noma amakhemikhali (kuhlanganise nezidakamizwa).

Nokho, odokotela bathi uma abafundi kukhona osuke usuvulekile, izizathu kufanele kuchazwe ngokushesha ngangokunokwenzeka. Mydriasis kungadala ukulimala (kokubili amehlo nobuchopho), kanye nesifo sohlangothi, isifo sokuwa kanye nezinye izifo eziningana ingqondo. Nokho, emazingeni ahlukene kubangela izinguquko ziphikelele usayizi umfundi zihlukile. Uma abafundi omdala osuke usuvulekile, izimbangela zalesi simo kungaba ngenxa izilonda kanye nezifo ze- izitsha ingqondo.

Kodwa uma kwenzeka kwezinhliziyo zezinsana nezezingane ezincane akudingeki sikhathazeke ngaso sonke isikhathi. Uma waphawula abafundi osuke usuvulekile wengane, kungaba izizathu lokhu mkhuba ngenxa izici esingokwemvelo zofuzo. Kuyaphawuleka ukuthi ezinsaneni nabafundi kukhona bonke osayizi ezahlukene. Ezimweni eziningi, ungakhathazeki. Kodwa uma umfundi unwetshiwe ngaphezu kuka-1 mm, futhi ngaphansi kwethonya ukukhanya usayizi yokuqala is hhayi wabuya, kuba isikhathi ukubona udokotela.

Mydriasis nentombazana esencane - uphawu enkingeni

Njengoba kushiwo ngenhla, ushintsho ngobukhulu umfundi futhi ukukhiqiza izidakamizwa - i-cocaine, i-LSD, insangu, ama-amphetamine kanye nezinye izinto ebulalayo. Uma osuke usuvulekile abafundi ngesikhathi esemusha, Izizathu zalokhu ngokuvamile ongakhethi. izinguquko ziphikelele usayizi umfundi phezulu uthathwa njengophawu bokuphila ukusetshenziswa kwezidakamizwa. Nokho, abazali nothisha kufanele uqaphele ukuthi lo mkhuba reverse (okuqhubekayo ukusikwa umfundi) - futhi uphawu eliqinisekile lokudakwa opiate iqembu izidakamizwa. Kulokhu, umfundi lincane ngokungavamile futhi akazange ukwandisa, ngisho ebumnyameni ephelele. Kodwa abafundi intsha kungenziwa landiswa futhi ngenxa yalesi sifo. Akufanele sibakhohlwe mayelana lokuthi mydriasis evumela ukuba usola isifo isimiso sezinzwa noma imithambo yegazi. Ngaphezu kwalokho, abafundi babe namasayizi ahlukahlukeneko - lokhu kuyinto uphawu ekuseni ka ebuchosheni noma ngamagciwane okunzima.

Uma uqaphela ukuthi noma abafundi amalungu omndeni wakho 'kuthiwa osuke usuvulekile, izizathu kufanele kuchazwe ngokushesha ngangokunokwenzeka. abafundi Wide ukunikeza amehlo ubuhle, kodwa futhi kungashaya-signal usizi isifo.