Compound myopic astigmatism tshwm sim thaum muaj myopia hauv txhua qhov meridians, ntawm qhov sib txawv. Ib qho piv txwv ntawm compound myopic astigmatism yog -2.50 +0.50 x 180. Hauv qhov no, muaj myopia ntawm -2.50D hauv 180-degree meridian thiab -2.00D hauv 90-degree meridian. Nyob rau sab hyperopia, muaj qhov yooj yim hyperopia.
Kev sib xyaw myopic astigmatism kho li cas?
Kev kho mob Astigmatism
- Kho lo ntsiab muag. Qhov ntawd txhais tau hais tias tsom iav lossis kev sib cuag. Yog tias koj muaj astigmatism, koj tus kws kho mob tej zaum yuav tau sau ntawv tshwj xeeb ntawm cov lo ntsiab muag muag hu ua toric lo ntsiab muag. …
- Kev phais phais. Laser phais kuj hloov cov duab ntawm koj lub cornea. Hom kev phais refractive muaj xws li LASIK thiab PRK.
Dab tsi ua rau muaj kev sib xyaw myopic astigmatism?
Astigmatism tuaj yeem tshwm sim tshaj tawm, lossis nws tuaj yeem tshwm sim tom qab qhov muag raug mob, kab mob lossis phais. Astigmatism tsis yog tshwm sim los yog ua rau tsis zoo los ntawm kev nyeem ntawv hauv lub teeb tsis zoo, zaum ze rau TV lossis squinting.
Puas yog myopic astigmatism kho tau?
myopia kho tau: MYTH
Qhov no txhais tau tias tsis muaj kev kho rau myopia - tsuas yog txoj hauv kev los kho qhov muag tsis pom kev deb uas tuaj nrog nws. Piv txwv ntawm thaum myopia yuav zoo li 'kho', tab sis tsuas yog 'kho' xwb, suav nrog Orthokeratology thiab LASIK lossis laser phais.
Dab tsi yog qhov sib xyaw astigmatism?
Mixed astigmatism yog thaum qhov muag muaj ob homntawm astigmatism tib lub sijhawm. Daim duab 2: Sab laug yog daim duab ntawm lub qhov muag nrog cov astigmatism sib xyaw uas qhia tias lub teeb nkag mus rau hauv lub qhov muag los ntawm cov cheeb tsam sib txawv ntawm lub cornea tsom nyob rau hauv ob lub ntsiab lus, tab sis ob qho tib si tsis yog ntawm retina.
