Lub lens thiab lub pob kws nquag muaj qhov zoo nkauj txhua yam. Kev ua txhaum ntawm nws cov curvature yog hu ua astigmatism. Tus kab mob no yog lub hauv paus tseem ceeb ntawm kev pom tsis zoo, feem ntau nrog me thiab lub plab hnyuv .
Kev ntsuam xyuas ntawm qhov kev ntsuam xyuas pathology yog pab los ntawm qhov kev ntsuam xyuas rau astigmatism. Kom nws ua tau yooj yim, rau lub hom phiaj no nws tsis yog qhov tseem ceeb yuav tau mus ntsib kws kho mob.
Cov tsos mob rau kev kuaj kev mob astigmatism
Yam ntxwv cwj pwm ntawm cov curvature curvature ntawm cornea lossis lens:
- deterioration ntawm pom kev clarity;
- mob taub hau;
- qhov muag tsis pom kev, sib thab lossis kev sib thab khoom ntawm khoom;
- sai nkees thaum ua haujlwm, yuav tsum tau muag qhov muag;
- myopia;
- hypermetropia.
Nws yog tsim nyog teev tias cov tsos mob no tsis tas yuav qhia tau hais tias muaj qhov tseeb ntawm astigmatism. Tus mob yuav tsum kuaj kom zoo.
Kev kuaj qhov muag rau kev kuaj mob ntawm astigmatism
Cov duab nrov tshaj plaws, uas tso cai rau qhia txog pathology - lub hnub qub ntawm Siemens.
Test nab npawb 1:
- Npaj kom tus qauv nyob ntawm qhov muag qib.
- Nyob nruab nrab ntawm lub taub hau thiab qhov screen yuav tsum yog ib tug deb ntawm txog 35-50 cm.
- Ua tib zoo saib daim duab.
Nrog rau qhov muag tsis taus, lub rays, tsis ncav lub nruab nrab, pib plooj, sib tshooj lossis sib tshuam nrog tom qab. Tej zaum nws yuav zoo li daim duab ua nws tsis zoo - cov rays dawb tig dub thiab vice versa. Ntxiv thiab, cov neeg uas muaj astigmatism pom cov ciam teb ntawm qhov pom tseeb ntawm cov kab nyob rau hauv cov duab ntawm ib qho ellipse los yog ntau cov duab, tsis yog lub voj voos.
Test naj npawb 2:
- Tsis txhob hloov txoj hauj lwm uas tau tshwm sim nyob hauv rooj plaub dhau los.
- Kaw ib lub qhov muag nrog ib tug xib teg los yog ib daim ntawv, xav txog daim duab.
- Rov qab sib xws rau lwm qhov muag.
Tag nrho cov kab hauv daim duab yog tib xim thiab dav, thiab cov theem ntawm txhua pawg yog nruj me ntsis. Yog hais tias nws zoo nkaus li tias qhov no tsis yog qhov teeb meem, tej zaum yuav muaj ib qho astigmatism.
Tooj naj npawb 3:
- Mus zaum kom lub hnub qub nyob ntawm theem ntawm lub taub hau, ntawm ib tug deb ntawm 25-30 cm.
- Tshaj li kaw qhov ib thiab qhov muag, ua tib zoo saib cov duab.
Raws li hauv kev xeem dhau, txhua kab hauv lub hnub qub yog sib npaug xim dub thiab ntev. Nyob hauv nruab nrab lawv sib dhos hauv lub voj voos. Thaum nws zoo nkaus li qee ntu qis dua los yog tsaus nti, thicker, ntev dua, thiab hauv nruab nrab es tsis muaj lub voj voog, ib qho ellipse, daim duab yim los yog lwm tus duab, koj yuav tsum sab laj nrog kws kho mob.
Koj puas xav tau ib qho kev ntsuam xyuas Amsler rau astigmatism?
Cov duab no yog siv nyob rau hauv txoj kev mob ntawm astigmatism raws li ib txoj hauv kev txheeb xyuas qhov muag tsis pom kev, tshwj xeeb tshaj yog - kev ua tsis taus zoo .
Kev Ua Haujlwm:
- Thaum hnav cov tsom iav los yog tsom iav los saib xyuas lawv.
- Teem cov duab nyob rau theem ntawm tus choj ntawm lub qhov ntswg, ntawm ib tug deb ntawm 25-30 cm.
- Kom npog ib lub qhov muag, saib qhov point hauv qhov chaw, nco ntsoov tias qhov kab sib chaws zoo li qhov no.
- Rov qab rau lwm qhov muag.
Nrog lub zeem muag pom, cov kab ntawm kab sib chaws nyob twj ywm ca, tsis muaj stains, distortions los yog distortions. Tsis li, koj yuav tau mus ntsib ib tus kws kho mob tshwj xeeb.