Abafundi ekuvunyelwene: yintoni na isizathu?

Umfundi inoxanduva lokulawula kwimitha ukukhanya lingene emehlweni ukuya retina. Ngoko ke phantsi utshintsho yokukhanyisa umfundi ubudeki ezahlukeneyo. Kodwa nje imitha yokukhanya zingachaphazela ubungakanani bayo, kukho izinto ezininzi ngaphakathi nangaphandle ezinegalelo utshintsho ezinjalo. Indlela abasabela yangaphakathi unxulumene kwiinkqubo ezahlukeneyo apha emzimbeni. A intwasahlobo ziquka nokushukunyiswa ukuba kwenzeka okusingqongileyo yabantu.

Xa yezonyango, nokwandisa okanye licuthe abafundi i ubutyebi lonke ulwazi, njengoko kusenokubakho sisalathisi kwezifo ezinzulu. Kungenxa yoko le nto lokufunyaniswa le uphawu inikwe ingqalelo ekhethekileyo.

izihlunu ezimbini eziphambili inxaxheba kwinkqubo yotshintsho ubukhulu umfundi. Ziqu unoxanduva ukwandiswa ubukhulu kwaye idala constriction elijekelezayo lwe umfundi. Ezi izihlunu ezinxulumene ngqo umsebenzi-luvo, ukuze njengoko kwamehlo kuzigweba impilo nangokwasengqondweni umntu. Yinto eyaziwayo ukuba ubukho loxinzelelo okanye abafundi kakhulu uxinezeleko ekuvunyelwene neziphazamiso ezikhoyo emehlweni akhe.

Akumangalisi ukuba kuseza kuqengqeleka iminyaka, umfundi uba lincinane noko, njengokuba le yinkqubo eqhelekileyo. Ngokuba onke amalungu, ancedisana imisipha uphawu ukuguga, oko kukuthi, ukwehliswa umsebenzi exchange, kunye nezinye iinkqubo nengqondo. Kwakhona ekukhanyeni okuqaqambileyo okanye ilanga ungabona ukuba abafundi abanezivumeIwano. Sele okhankanywe ukuba oku eqhelekileyo xa ufunyansiwe ezigqithiseleyo yokukhanya, ngoko umzimba likhusela retina iliso. Kodwa ngorhatya okanye ukukhanya buthuntu kwakhokelela basabela umva. An into umdla kukuba ekukhanyeni ihlwempu kunciphisa umsebenzi kwengqondo kunye nemveliso umsebenzi owenziwayo.

Ubukhulu be umfundi singakwazi ukubona iingxaki zabantu ngenxa umbono. Ngoko ke, xa abafundi ekuvunyelwene hyperopia kunye ukubona kwi, ngokulandelelana, ngokuchasene noko. Ngenxa ukonakala ngokukhawuleza ndikho yombono ungabona indlela ukunyuka ubudeki lwakhe.

Wonke umntu uyazi ukuba wayelikhoboka bungabonakala abafundi ezinkulu kakhulu. Kodwa asinguye wonke umntu uyaqonda ukuba ukusetyenziswa kotywala kunye necuba imveliso nako kubonakala emehlweni akhe, abantu kuphela mikhwa ezinjalo kubafundi elimxinwa.

Kukho uluhlu lonke zizifo abonakala urhulumente iso. Ngokomzekelo, omnye iimpawu kwezifo ezifana meningitis, lo ukuncitshiswa umfundi, kodwa kuphela xa lukwisigaba sokuqala kophuhliso, kunye ukuqhubela phambili kwesifo kukho utshintsho kunye nokwandiswa ubudeki balo. Kwakhona, xa abafundi nehigh intracranial ikhontrakthi. Ukuba tshintsha enye kuphela ecaleni layo, kubalulekile ukuthetha malunga nesi sifo kwindawo ikhweyitha ethile ebuchotsheni.

Xa amayeza, kukho ikho into spasm lwezonyango ngayo umfundi. Oku kubandakanya ukwanda okuqhubekayo kunye yindibanisela umfundi. Ngokuqhelekileyo, uphawu onjalo libhekisela sisifo sephepha, sclerosis le esichitha-chithwe uhlobo, traumatic kukwenzakala ingqondo womxhuzulane oluthile ukuxhuzula. Ngokufuthi utshintsho ziyimpendulo ekukhanyeni, oko kukuthi, abafundi samosulela ekukhanyeni norhatyazo.

Yinto eyaziwayo ukuba icaffeine lisebenza nayiphi na into iziyobisi ebangela mydriasis. Noko ke, xa libanda, kwenzeka ukunxila kwento ephilayo, ngamanye amazwi, ubuthi iziyobisi, kwaye ubukhulu umfundi kunciphisa kakhulu.

Ukuba umntu ukhokela indlela yokuphila esempilweni kunye neemeko zokusingqongileyo kuwo kuba nafuthe ngqo, kwaye abafundi nangoku tight, kusenokuba kukho umqondiso imfuneko yokuba bapase iimviwo ngokucokisekileyo. Enye abanezakhono kulo mzekelo, uyakwazi ukubona ithumba ubuchopho okanye komsipha kwemithambo yegazi yobuchopho, ilandelwe yi legazi.

Ngoko ke, kukho iimeko apho utshintsho ubukhulu umfundi kufuneka yaziswe. Ukuba ngaphezu kwesi uphawu na oluthile langoku, uhambo ukuya ugqirha kufuneka ukuba zilibaziseke.