I-Astigmatism yinkinga yombono eyenza izinto zibonakala ziphazamisekile kwaye zenzeke. Ngokuqhelekileyo kuthinta umgama kunye nombono osondeleyo. Ingona yembono yembono eqhelekileyo kwaye inokuthi ingabonwa ngokusondeleyo kunye nokujonga phambili .
Izimpawu kunye neMpawu
I-Astigmatism ibangela ukuba umbono ubonakale kumgama kunye nokufuphi. Izigulane nge-astigmatism zidla ziziva zidinwe emva kokufunda kwaye zifumanise ukuba iileta kunye namazwi abonakala ehlwayelwe.
Ukuqhathaniswa nokukhupha intloko kubonakala kukuphucula ukuphazamiseka kombono obangelwa ngu-astigmatism.
Izizathu
I-Astigmatism ibangelwa yi- cornea ene-oblong shape, njengebhola lebhola, endaweni yesimo esiphezulu, njengebhokisi lebhokisi.
I-cornea ene-astigmatism inee-curves ezimbini, enye ikhefu ephilileyo kunye neyodwa. Ukukhanya kugxininiswe kwiindawo ezimbini endaweni enye. Elinye iphuzu lokugxila lingaba phambi kwe-retina kunye nelinye.
Oku kubangela ukuba imifanekiso ibonakale iphosakele ngaphezu kokubonakala ngokugqithisileyo. I-Astigmatism inokubangelwa yilenki ekhethiweyo engaqhelekanga. Le meko ibizwa ngokuba yi- astigmatism ye-lenticular .
Ukuxilongwa
I-Astigmatism ifumaneka yi-keratometer yesicatshulwa, isixhobo esisetyenziselwa ukulinganisa i-curne of cornea. I-keratometer idla ngokusetyenziswa kwimeko yokuhlola isohlo.
Ukuxilongwa kwakhona kungenziwa ngokusebenzisa i- corneal topographer. I-corneal topographer isixhobo esinika imephu ekhowudiweyo, efana nebalazwe yezolimo.
Imimandla ehambelayo iboniswe kwiindawo ezibomvu kunye neentlanzi eziluhlaza.
I- aberrometer yesigxina iya kunika ugqirha wezilwanyana ulwazi oluthe ngqo malunga ne-astigmatism.
Unyango
I-Astigmatism inokulungiswa ngeiglasi, qha ga mshelana kunye nokuhlinzwa.
- Iiglasi: Iiglasi zisebenza kakuhle nezigulane ezine-astigmatism. Izigulane ezineemali eziphezulu ze-astigmatism kufuneka zizilungise kakuhle iiglasi zazo ebusweni babo.
- I-lens zoqhagamshelwano: Ii-lens zoqhagamshelwano ezichanekileyo njenge-astigmatism zibizwa ngokuba yi- toric contact lenses . Izigulane ezinamanani amakhulu njenge-astigmatism zinempumelelo enkulu kunye negesi egxininisekayo.
- Ugqirha: Iinkqubo zokulungiswa komboniso wokujonga kunye nenkqubo yokunyanzelisa, eyaziwa ngokuthi i-astigmatic keratotomy, inokuthi ilungise i-astigmatism ngempumelelo.
I-LASIK Surgery kunye ne-Astigmatism
Ukuba unayo i-astigmatism, ungacingi ukuba awunakho ukuhlinzwa kwe-LASIK. Kungenzeka kuninzi.
Ukuhlinzwa okwenziwa nge-LASIK kusetyenziselwa ukulungisa iziphene zokuzikhusela ezifana ne-astigmatism, myopia , kunye ne- hyperopia . Abantu abaninzi abane-astigmatism baye bafumana ukuhlinzwa kweziliso ze-LASIK ukuba yindlela ekhuselekileyo nefanelekileyo yokulungiswa kombono.
Ngesizathu esithile, kukho "inhlamba" malunga ne-astigmatism xa kuziwa kwi-LASIK. Nangona kunjalo, ezininzi izigulane ezinjenge-astigmatism zinokuhlinzwa okwenziwe nge-laser refractive. Ininzi yale nto ibangelwa kukuba yinto yokuqala yohlobo lwengxaki ebonwe yi-FDA yeLASIK.
I-LASIK Surgery Plus I-Keratectomy ye-Astigmatic
Nangona abaninzi abantu abanesifo se-astigmatism banokuthi babe ne-LASIK, abanye abantu bane-astigmatism eninzi kakhulu ukuze i-laser ilungiswe. Kodwa, ngamanye amaxesha banokufumana inkqubo eyongezelelweyo ebizwa ngokuthi i-astigmatic keratectomy (AK) ukulungisa nayiphi i-astigmatism eseleyo.