Ukuphazamiseka Visual - izizathu kunye nokuthintela

Ingxaki ongaboniyo kakhulu sibi namhlanje. Kwiklasi yokuqala, wonke umntwana wesine kuneengxaki mbono, udidi yesithandathu - sele omnye kwabathathu, abanezidanga - njalo. Makhe sibone ukuba yintoni na le ongaboniyo ixhaphakileyo abantwana, yintoni na isizathu kwaye yintoni enokwenziwa ukuze zokuthintela.

ukuphazamiseka Visual kwenzeka nini, ngenxa yaso nasiphi na isizathu, iliso ulahlekelwa ikhono layo ngokwaneleyo refraction (refraction wokukhanya), yaye omnye eqala ukubona izinto ophambene. Ngokuxhomekeka oku, ichonge iintlobo ezisisiseko sifo.

ukubona

Kule meko ye selelwe kuphela izinto ukuthi ngokoqobo xa ikude. A into ngakumbi kakuhle azinakwenzeka, ukufiphala, akukho ngokucacileyo indlela.

Yeso kwizigulane kunye ukubona idla ixesha elide ngaphezu 5-6 eemilimitha, kunokuba kubantu abasempilweni. Esi sifo kwenzeka ngenxa yokuba ixesha elide yaye rhoqo amehlo. Ukuba umntwana rhoqo igxininisa sijonga izinto ngeliso wesikolo bebekwe ngokwahlukeneyo omnye, umsipha iliso iyabetheleleka ezisetyenzisiweyo spazmiruyutsya kule meko. Ukukwazi ukujonga umgama ezahlukeneyo ngokutsha izinto ezilahlekileyo.

Kukho izidanga ezininzi izifo:

- ukubona Nobulali: up to - diopters 3;

- ukubona aphakamileyo: ukuya ku -6 diopters;

- ukubona ezimandundu: ngaphezu diopters-6.

Kakhulu zaqala ngokucacileyo yofuzo ukuya ukubona. Oku kubangelwa ukutya kunye ubuntununtunu kwemisipha ocular, apho idluliselwe kwizizukulwana ngezizukulwana.

Ngezibuko ukubona zinxitywa ukuba kuhle ukubona izinto ezikude esitalatweni kunye neenkcukacha ezincinane indlu. Xa ufunda okanye ngokubhala iindondo kufuneka isuswe.

hyperopia

It is a malunga nemeko ukubona. Xa ezikude, ezisondeleyo into, i luzizi ngakumbi kucacile. Ngako oko, izinto ezikude zibonwa ngokucacileyo. Yaye ayenako ezikude, ngokucacileyo ibonakala izinto kuphela kwi kumgama othile.

Kulo sifo, ilens batshintshwa ukuze ukukhanya refracted asanelanga, kwaye kujoliswe luqokelelane ngaphandle retina.

Hyperopia wohlulwe kumanqanaba ezininzi kwakunye mfutshane-bisayo.

Izizathu livela - ufuzo, ze overvoltage, rhoqo nangokurhala, kunye neenguqu ezinxulumene kwiminyaka yeso.

Xa iindondo ezikude ezinxitywa ngenjongo ukufunda nokubhala, kwaye kwezinye iimeko azifuneki ke, ukuba iqondo esi sifo kuba inkulu kakhulu.

astigmatism

Ezi ukuphazamiseka ezibonwayo voznkayut xa egqwethekileyo imilo ungqukuva le inwebu. Emva koko avelise radii ezahlukeneyo, nto leyo esisizathu sokuba Ukukhanya refracted kwi engile ezahlukeneyo. Xa astigmatism elifana neli zombini ukubona kunye hyperopia kunye nombono eqhelekileyo. Ngelo xesha isigulana ubona yakhiwe ezininzi yezinto ngexesha elifanayo.

Ukwahlula astigmatism kwenwebu kwaye lenticular - kuxhomekeke yinxalenye iliso zikhubazekile.

Ukuze umntwana pick up izibuko ezizodwa lens, abenziwe kuthathelwa ingqalelo obubonakala ngabanye astigmatism.

Amaninzi lesisifo esidityaniswe sofuzo kwaye bekhubazekile isakhiwo eso.

Uthintelo ongaboniyo ebantwaneni.

Nqanda ongaboniyo ayikho nzima. Ukuze wenze oku, kufuneka ulandele eminye imigaqo kunye nobuchule.

- ukuqala nokuthintela ofanayo cwaka xa bezalwa. Ukuze wenze oku, singaxhoma i Urhashaza phezu ezinemibala eluhlaza, tyheli naorenji kwi-30 cm emehlweni wosana olo. Kwakhona luncedo ukuqhuba le yokudlala kufutshane kwaye kude umntwana, ngoko waqeqesha amehlo egxile kwi imigama ezahlukeneyo.

- TV kunye ubukhulu computer. Ngokungqinelana nemigangatho, enkulisa nga tirhisa kuyo imizuzu engekho ngaphezulu kwe-40 ngosuku, umfundi junior kwisikolo samabanga aphakamileyo - hayi ngaphezulu kweyure, nabantwana abangaphezu kweminyaka eli-10 - iiyure malunga enye enesiqingatha. Kulo mzekelo, yonke imizuzu engama-20 kuyimfuneko ukwenza breaks ezincinane imithambo ezibonwayo.

- Umntwana kufuneka usendleleni kwisiqingatha ukuya iiyure ezimbini ngosuku ukuze unike umzimba ioksijini ngokwaneleyo.

- Qinisekisa ukuba umntwana ufumana zonke izinto eziyimfuneko iivithamini kunye neeminerali zempilo. Ukujonga, ingakumbi, i iivithamini ezibalulekileyo A no-C

- Ingaba wena uze ufundise umntwana wakho ukuba isimangalo ezilula ezibonwayo, ukuze bakhululeke amehlo kunye nokomeleza izihlunu iliso.