Yintoni astigmatism, izizathu zayo kwaye unyango

imvelaphi

Kakade ukusuka igama ngokulula ukuqashisela ukuba yintoni na astigmatism nento lubandakanya. Igama lokuqala lika sifo ifumene lithatyathwa kwigama lesiLatini "ibala", gama elo elithetha "indawo". Kulo mzekelo, libhekisela kumfanekiso into eza kuqala. Eli gama wanikwa hayi ingozi, kuba ngumongo sifo ilele kanye kule xi elingafanelekanga msebe reyi ukukhanya.

Iimpawu zesi sifo

Astigmatism yi iliso sesinye sezifo yeyona ixhaphakileyo ehlabathini. Enyanisweni, xa elithile okanye omnye, baphathwa phantse isiqingatha sabo bonke abantu Emhlabeni. Abaninzi kwesi sifo iqala ebuntwaneni ekuqaleni. Qonda ukuba astigmatism yindlela elula, ukuhlolisisa ulwazi olusisiseko malunga isakhiwo iliso. Yinto eyaziwayo ukuba amehlo abantu zinenkqubo ezimbini enombala ukuba refraction ukukhanya. Olu inwebu kanye lens, kubaluleke ngokulinganayo ukwakha umfanekiso ekunene kwi retina. Zombini yoyilo zendalo ezikhethekileyo, ngamnye uneempawu zawo, kodwa enye into efanayo ukuba babe - ekuthiwa ingqiqo amagophe. Le inwebu yomntu nempilo na isakhiwo kunye ugobile phantse ogqibeleleyo. Ngenxa yoko, ukukhanya umqadi odlula therethrough lujolise kanye kwiretina. Xa abantu abane angaboni kahle, la manani batshintsha.

Yintoni astigmatism esuka kwindawo umbono zenzululwazi

Ngoko ke yintoni na astigmatism? Lo mbono eluziziz kwenzeka rhoqo, kodwa kunzima kakhulu ukuchaza. Kwiimeko ezinqabe kakhulu, isizathu ubuxoki ngendlela engachanekanga se lwamehlo. Kodwa uninzi kubo sifo ezinxulumene ngqo ukufiphala woqondo oluqhelekileyo kuzo zonke lenses. Kwaye njengoko inwebu , kakhulu, ukuba ngokumila ungqukuva, oko yingcamango lokuba kuyo. Ifomu echanekileyo kuba kucingwa ukuba ukulenza elililo, nako refract imitha zokukhanya nayiphi moya ofanayo. Kodwa kukho kwakhona atshabalalisa, okanye, phezu koko, evuthelweyo. Loo inwebu akakwazi kakuhle kutsalela umfanekiso, ugobile walo kwiindawo ezithile ezahlukeneyo, kwaye ke ngoko imitha esiwa kwi retina, ndizuze ubude ukungalingani. Oku kubanga uhlaba yokusetyenziswa kanye izinto ezizingqongileyo. Emehlweni umntu onesifo astigmatism, akukho ndawo enye focal, ngokuchaseneyo entunjeni onempilo. Ngenxa yokugxininisa umfanekiso ungapheleli yemveliso efumaneka ukuba ayicacanga, kwaye ukuba kunye imisele imfiliba.

Yintoni astigmatism ezifunyenwe uhlobo

Yinto eyaziwayo ukuba izifo sizalwa nje kuphela abantu abadala: ibizwa sivame ukuxilongwa ebantwaneni. Kusenokuba astigmatism naso okanye lufundiwe. Last kwenzeka xa ngokomzimba ebangelwa loloyiko kwi inwebu, kwakunye emva ezimbi intengiselwano - ngenxa utyando engafanelekanga.

astigmatism azalwa: yintoni na yaye kubonakala ngayo ngokwayo.

Kulo mzekelo, xa kufikwa isiphako naso lwembono, ifike yofuzo. Ngokuqhelekileyo, astigmatism ubunzima ukusuka ekuzalweni abo abantwana abanabazali unaso esi sifo khona. Kodwa uhlobo naso esi sifo eliphantsi awucaci kwaye phantse akukuphazamisi okanye kukuchaphazele kabukhali yawo, yaye ngoko ke ezi zinto azithathelwa ngqalelo. Abantu abaninzi ubomi bakhe abakho aware of ikho.

iimpawu astigmatism

Symptomatology kwesifo ibonakalisiwe hayi kuphela ukonakala izicacele ukuba ngaphandle ungenelelo ngexesha uyakwazi ukuya kwinqanaba ngaphezulu kakhulu. Astigmatism kwakhona rhoqo sihambisana yintloko ixesha elide umthwalo ezibonwayo, lacrimation ngokugqithiseleyo, nangokurhala iliso kunye kungqameko kwinkulungwane eshukumayo. Kusenokwenzeka nokwenzeka conjunctivitis, uphathwe emehlweni , nokudinwa jikelele.

unyango lwesifo

Okwangoku ngokubanzi kusetyenziswa iindlela ezintathu zonyango astigmatism :

- izibuko;

- ukunxitywa lens lokululeka;

- uqhaqho.

Kule meko ezimbini zokuqala isebenzisa lens ezintsonkothileyo iiglasi ukuba isakhiwo zezindlu. Ingxaki kukuba de baba ifumaneke ngokubanzi kweli lizwe. Kufuneka wenze iindondo ezinjalo kunye lenses uku-odola. Kaninzi kufuneka itshintshwe ngaphezu kanye ukufumana ezifanelekileyo, yaye eqolo. Ukongeza, izigulane ezininzi ukuphuhlisa ukunganyamezelani, aggravates kuphela iimpawu astigmatism: eye ukungakhululeki, intloko ebuhlungu okanye Uyagula.

ungenelelo yentsebenziswano zinezibonelelo ebalulekileyo. Ivela ngophuhliso yangoku zobugcisa pretty ngokukhawuleza nokuphelisa isigulane yemfuneko mbono ngokubanzi ilungiswe ngezinye iindlela. Ugobile le inwebu kule meko iyapheliswa ngokwasemzimbeni. indlela Surgical ukuba aphathe astigmatism unalo ukusebenza liphezulu phakathi kwabo bonke abo ezikhoyo, ukunika iziphumo ezingcono kwixesha elifutshane.