Tsis yog txhua tus yuav khav tau tias nws muaj qhov muag pom kev zoo. Feem ntau muaj qee yam pathology. Piv txwv li, nws tuaj yeem yog hypermetropic astigmatism, uas yog qhov sib txawv ntawm lub zeem muag vim kev pom deb.
Qee zaum, nws tuaj yeem ua rau tsis pom tseeb, tab sis nws kuj tshwm sim tias pathology ua rau mob taub hau thiab khaus khaus. Hom astigmatism no tsawg heev hauv ob lub qhov muag, feem ntau cuam tshuam rau ib leeg xwb. Cia peb sim nkag siab qhov ua rau tus kab mob no thiab yuav kho li cas.
Yog vim li cas
Lub pob txha thiab lo ntsiab muag hauv lub qhov muag nrog lub zeem muag ib txwm yog kheej kheej. Lub teeb ntawm lub teeb refracted los ntawm lawv yog tsau ntawm retina nyob rau hauv ib qho chaw. Tab sis yog hais tias lub qhov muag yog nrog astigmatism, ces lub beam nyob rau hauv cov ntaub ntawv no yuav tsim ob lub ntsiab lus, tsis yog ib tug. Raws li qhov tshwm sim, daim duab muab ob npaug, dhau los ua qhov muag plooj thiab hloov pauv.
Yog li, hypermetropic astigmatism tshwm sim rau ob qho laj thawj:
- deformation ntawm lub lens;
- hloov lub ntsej muag.
BTam sim no tseem tsis tau paub meej tias vim li cas qhov no tshwm sim. Cov kws tshawb fawb tau hais tias qhov deformation ntawm lub lens yog ib qho kev tsis sib haum xeeb ntawm txoj kev loj hlob thiab thaum lub neej nws tsim tsis tshua muaj. Tsis tas li ntawd, cov duab ntawm lub cornea tuaj yeem hloov pauv vim muaj caws pliav, xws li tom qab raug mob lossis phais.
Feem ntau farsightedness muaj qhov tsis muaj zog, mus txog 0.5 diopters. Qhov no tsis suav tias yog kev ua txhaum cai, ib tus neeg tsis muaj qhov tsis xis nyob, thiab qhov no kuj tsis cuam tshuam rau qhov tsis pom kev zoo.
Type of pathology
- Yooj yim astigmatism - nyob rau hauv rooj plaub no, ib qho meridian ntawm lub qhov muag muaj qhov pom kev zoo, thiab qhov pom kev deb tshwm sim rau lwm qhov.
- Complex astigmatism - farsightedness tshwm sim nyob rau hauv ob qho tib si meridians ntawm lub qhov muag, uas yog, cov ntsiab lus tseem ceeb nyob tom qab lub retina.
Ob qho tib si nyuaj hyperopic astigmatism thiab astigmatism yooj yim tshwm sim los ntawm qhov tseeb tias lub pob kws muaj lub ntsej muag tsis zoo. Ntau zaus tsawg, qhov no ua rau muaj qhov txawv txav ntawm lub lens.
Tsis tas li, astigmatism tuaj yeem yog hom ncaj qha thiab rov qab. Lub hauv paus ntawm kev faib nyob rau hauv cov ntaub ntawv no yog raws li lub zog ntawm refraction nyob rau hauv lub ntsiab meridians. Yog hais tias nws muaj zog nyob rau hauv ntsug meridian, nws yog ib hom ncaj qha. Tab sis yog tias muaj zog refraction tshwm sim nyob rau hauv kab rov tav, qhov no yog hyperopic astigmatism ntawm hom rov qab.
Symptoms
Qhov kev tsis pom kev pom no tuaj yeem tshwm sim nws tus kheej hauv ntau txoj kev, thiab nws nyob ntawm qib ntawm nws qhov hnyav.
Yog hais tias farsighted astigmatism yog me me, nws cov tsos mob yuav luag tsis pom. Txiv neej tsis thempom tias nws qhov muag tsis pom kev tab tom pib deterioration. Feem ntau, qhov mob me me ntawm cov kab mob no tau kuaj pom thaum kuaj kev tiv thaiv.
Qhov nruab nrab ntawm astigmatism yog tshwm sim raws li hauv qab no: muaj qhov muag tsis pom kev, uas yog nrog rau ob lub zeem muag, mob taub hau lossis kiv taub hau. Ib tug neeg tsis tuaj yeem mloog zoo rau kev ua haujlwm ntsig txog qhov muag. Lub sijhawm no cov neeg raug yuam mus ntsib kws kho mob.
Mob hnyav astigmatism yog cov tsos mob hnyav. Feem ntau, nws pib ua ob lub qhov muag ntau heev, thiab qhov muag tsis pom kev ua kom pom tseeb. Muaj mob ntawm qhov muag, mob taub hau, qee zaum chim siab, xeev siab. Thaum lub sijhawm kuaj, tus kws kho mob sau tseg tias muaj qhov tsis zoo hauv qhov pom kev pom.
Kev kho mob ntawm hyperopic astigmatism
Cov kab mob no tau kho ob txoj hauv kev:
- ncig;
- prompt.
Yog kev pom kev deb me ntsis, nrog rau qhov tsis muaj cov kab mob sib kis (astheopia, strabismus), kev kho mob yuav tsis ua, vim qhov no qhov tsis pom kev zoo yuav tsis ua rau tsis zoo. Yog tias kuaj pom cov kab mob no, kev kho yog ua tiav yam tsis muaj kev poob. Nws dag nyob rau hauv qhov tseeb hais tias ib tug neeg raug sau tshwj xeeb tsom iav nrog spherical lo ntsiab muag. Lawv yuav tsum hnav txhua lub sijhawm lossis tsuas yog ua qee yam haujlwm. Tsis tas li ntawd, kev kho yuav tsum hnav cov looj tsom iav.
Tab sis nws yuav tsum tau hais tias astigmatism tsis tuaj yeem kho nrog lo ntsiab muag lossis tsom iav. Lawv tsuas yog pab kho nws txhawm rau txhawm rau tshem tawm qhov tsis xis nyob cuam tshuam nrog qhov tsis pom kev zoo li no. Astigmatism yog kho los ntawm kev phais nkaus xwb, thiab feem ntau nws yog laser pom kev kho.
kho mob phais
Ntawm ophthalmology tshem tawm astigmatism los ntawm kev phais.
- Laser thermokeratoplasty. Hom kev kho qhov muag no muaj nyob rau hauv qhov tseeb tias qhov kub hnyiab tau siv rau thaj tsam peripheral ntawm lub pob kws ntawm qee cov ntsiab lus nrog lub laser. Qhov no pab txhawb rau kev cog lus ntawm collagen fibers, vim hais tias lub cornea hloov nws cov duab. Nyob rau hauv lub periphery, nws yuav flatter, thiab nyob rau hauv lub hauv paus nws ua convex, uas ua rau kom pom kev zoo.
- Thermokeratocoagulation. Nws yog ua tau zoo ib yam li laser thermokeratoplasty, tsuas yog nyob rau hauv cov ntaub ntawv no cov kub hnyiab tau siv nrog ib tug kub kub koob.
- Y Hypermetropic laser keratoileusis. Tam sim no, txoj kev kho no yog suav tias yog kev nyab xeeb thiab zoo tshaj plaws. Qhov kev kho lub zeem muag laser no yuav pab kom tshem tawm ntawm qhov nruab nrab thiab hnyav astigmatism. Nws yog nqa tawm raws li nram no: ib tug me me flap ntawm cov ntaub so ntswg yog txiav tawm nyob rau hauv lub cheeb tsam ntawm lub Upper txheej ntawm lub cornea thiab thawb ib sab. Ua tsaug rau qhov kev txiav no, lawv ncav cuag nruab nrab cov khaubncaws sab nraud povtseg ntawm lub cornea ntawm nws qhov periphery. Ib cheeb tsam me me ntawm txheej nruab nrab yog evaporated nrog lub laser, thiab lub flap rov qab mus rau nws qhov chaw. Cov txheej txheem no kho cov duab ntawm lub cornea, hloov nws curvature, thiab pom kev sai sai.rov qab los.
Yog tias muaj ib qho laj thawj uas tsis tso cai rau cov kev kho mob no, tom qab ntawd cov haujlwm xws li tshem tawm lub lens, phakic intraocular lens implantation, keratoplasty yog ua.
Hypermetropic astigmatism hauv menyuam yaus
Qhov kev tsis pom kev zoo li no hauv cov menyuam yaus hnub nyoog qis dua ib xyoos yog suav tias yog ib qho tshwm sim (physiological) tshwm sim. Tab sis nyob rau hauv cov me nyuam loj, qhov no pathology manifests nws tus kheej nyob rau hauv tib txoj kev raws li nyob rau hauv cov neeg laus. Tus menyuam qhov kev tsis txaus siab hauv qhov no yog qhov tsis meej: kub hauv qhov muag, qaug zog, mob taub hau, tsis kam kos, nyeem thiab sau.
Ntau tus kab mob no yog los ntawm niam txiv mus rau tus menyuam. Yog li ntawd, yog tias ib tug neeg hauv tsev neeg raug kev txom nyem los ntawm astigmatism, nco ntsoov qhia tus menyuam mus rau tus kws kho qhov muag kom sai li sai tau. Nrog kev kho tsis raws sijhawm, tom qab ib ntus tus menyuam tuaj yeem tsim strabismus.
Kho cov kab mob hauv cov menyuam yaus
Yog tias hyperopic astigmatism mob me, ces nws tsis tas yuav kho tshwj xeeb. Feem ntau, tus menyuam tau sau npe nrog lub chaw muag tshuaj thiab cov kev tawm dag zog tshwj xeeb raug xaiv rau qhov muag.
Yog hais tias tus kab mob no tshwm sim ntau, ces tus kws kho mob xaiv tsom iav tshwj xeeb los yog lo ntsiab muag rau tus neeg mob me. Cov iav yuav tsum tau xaiv los ntawm ib tus kws kho mob uas paub txog, lawv cov lo ntsiab muag yuav tsum muaj qhov sib txawv ntawm qhov sib txawv, yog li lawv tau ua ib tus zuj zus.
Hypermetropic astigmatism hauv cov menyuam yaus tuaj yeem ua tautiv thaiv yog tias ntxov li sai tau kom qhia lawv kom faib cov khoom thauj ntawm lub qhov muag kom zoo.
Zoo kawg
Hypermetropic astigmatism yog ib qho mob qhov muag loj uas tuaj yeem kho tau tsuas yog phais. Txhawm rau tiv thaiv tus kab mob no kom tsis txhob muaj kev loj hlob, tus kws kho mob tshwj xeeb tau hais kom hnav cov tsom iav tshwj xeeb lossis cov tshuaj tiv thaiv kab mob, vim li ntawd nws tseem ceeb heev kom mus ntsib kws kho mob raws sijhawm.
