Uhlobo lwe-astigmatism, apho i- myopia ehlala khona, luthiwa yi-myopic. Ukukhubazeka kubangelwa ukuba ukujoliswa kolwazi olubonakalayo aluqhutywanga ngenye indlela kwi-retina yelihlo ngalinye, njengoko kufanelekile ngeenkcukacha eziqhelekileyo, kodwa kwiindawo ezimbini. Kwaye kwi-retina ngokwayo, yodwa inxalenye yomfanekiso ifakwe.
Yintoni i-myopic astigmatism?
Esi sifo sinokufunyanwa ngenxa yoluphina umsebenzi ophenyayo kwamehlo, umonakalo olungumatshini okanye ukukhula njengempawu ezihambelana nezifo ezithile. I-astigmatism yeMyopic nayo ivela ekuzalweni.
Ukongezelela, le ntsholongwane ihlelwa kwiifom ze-corneal kunye ne-lens ezinamaqondo ahlukeneyo obunzima: ubuthathaka kunye nobunzima.
I-Astigmatism ilula ye-myopic
Ukuxilongwa kunye nokusekwa kwenkathazo yesifo kuqhutywa ngokuhlola i-meridians kweso. I-astigmatism elula ibonakala ngokugxininisa imisebe ekhanyayo ngqo kwi-retina, kunye nenye inxalenye - phambi kwayo. Kule meko, umbono uqhelekileyo kwi-meridiya enye, kwaye i-myopia iyaqhubeka okwesibini.
I-Compyotic myopic astigmatism
Olu hlobo lwesifo lubonakaliswe kukuba i-retina ayifinyeli ngokupheleleyo yonke imirhomo elula, kodwa igxininisa kumanqaku amaninzi phambi kwayo. Xa uhlolisisa i-meridians kwiso, kuyacaca ukuba i-myopia ikhona kwizinto zombini, kodwa ngee-degree degrees of gravity.
I-compact myopic astigmatism yobabini amehlo ivela rhoqo kwaye ibonakaliswe ngokugqithiseleyo kweempawu:
- Ukunciphisa ukucaca kwezinto ezibonakalayo;
- ukuphazamiseka;
- imbonakalo emvula.
I-myopic astigmatism - unyango
I-degree of weakness of pathology inokuphathwa ngokugqibeleleyo ngeendlela ezibonakalayo zamehlo, ukugqoka iilazi zokulungisa , ii-lens.
Isiganga esinzima sisoloko sifuna inkqubo yokucoca, kuba iindlela ezichazweyo ezifanelekileyo zibangelwa ukuhlaselwa kweentloko kunye nokuphazamiseka emehlweni. Imisebenzi yokuphelisa i-astigmatism ye-myopic yile ndlela ilandelayo:
- i-laser keratomileus (ukulungiswa kohlobo lwe-cornea ne-laser beam);
- i-keratotomy ye-astigmatic (microdermabrasion kwi-cornea);
- i-keratectomy ye-photorefractive (ukulungiswa kwe-cornea ngokukhishwa kwamancinci kwinqanaba layo elingaphezulu ngaphandle kokulimaza izicubu ezijikelezayo).