Inhlobo ye-astigmatism, lapho i- myopia ikhona khona, ibizwa ngokuthi i-myopic. I-pathology ikhona yokuthi ukugxila kolwazi olubukwayo akukwenziwa ngesikhathi esisodwa kwi-retina yeso ngalinye, njengoba kufanele kube ngama-indices avamile, kodwa ezindaweni ezimbili. Futhi ku-retina uqobo, ingxenye kuphela yesithombe isilungisiwe.
Kuyini i-astigmatism ye-myopic?
Lesi sifo singatholakala ngenxa yimuphi umsebenzi wokuhlinzwa emehlweni, ukulimala komshini noma ukuthuthukisa njengesifo esihambisana nezifo ezithile. I-astigmatism ye-Myopic nayo ivela ekuzalweni.
Ngaphezu kwalokho, lesi sifo sihlukaniswa ngokuthi sibe ama-corneal and lens form with degrees of gravity: weak and severe.
I-Astigmatism i-myopic elula
Ukuxilongwa nokusungulwa kwenkimbinkimbi yalesi sifo kwenziwa ngokuhlola ama-meridians esweni. I-astigmatism elula ibonakala ngokugxila eminye imisebe ekhanyayo ngqo kwi-retina, kanti enye ingxenye - phambi kwayo. Kulolu cala, umbono uvamile ku-meridian eyodwa, futhi i-myopia iqala okwesibili.
I-astigmatism ephelele yama-myopic
Lolu hlobo lwesifo lubonakala ukuthi i-retina ayifinyeleli ngokuphelele imisebe yokukhanya, kodwa igxile emaphuzu amaningana phambi kwayo. Lapho uhlola ama-meridians esweni, kusobala ukuthi i-myopia ikhona kokubili, kodwa ngezinga ezihlukahlukene zokuqina.
I-astigmatism ye-myopic ephelele yamehlo womabili iyenzeka kaningi futhi ibonakala ngobukhulu bezimpawu:
- Ukunciphisa ukucaca kwezinto ezibukwayo;
- ukuhlanekezela;
- ukubonakala kwesithombe esinamafu.
I-astigmatism ye-Myopic - ukwelashwa
I-degree of weakness of pathology ingaphathwa ngokucophelela ngokuzivocavoca okwenziwe ngokukhethekile, igqoke izibuko zokulungisa , amalensi okuxhumana.
Izinga elibi kakhulu lidinga inqubo yokuhlinzwa, ngoba izindlela ezichazwe ngokungaqondakali zingabangela ukuhlaselwa kwekhanda nokunganaki emehlweni. Imisebenzi yokuqeda i-astigmatism ye-myopic yile ndlela elandelayo:
- i-laser keratomileus (ukulungisa ukuma kwe-cornea nge-laser beam);
- i-astigmatic keratotomy (microdermabrasion ku-cornea);
- i-keratectomy ye-photorefractive (ukulungiswa kwe-cornea ngokususwa okuncane kwezingqimba zayo ngaphandle kokulimaza izicubu ezizungezile).