Astigmatism ndi vuto la masomphenya limene limapangitsa kuti zinthu ziwonekere kukhala zopotoka komanso zovuta. Nthawi zambiri zimakhudza mtunda ndi pafupi ndi masomphenya. Ndilo vuto lalikulu la masomphenya ndipo likhoza kuchitika ndi kuyang'anitsitsa ndi kuyang'anitsitsa .
Zizindikiro ndi Zizindikiro
Astigmatism kawirikawiri imachititsa masomphenya kukhala osokonezeka patali komanso pafupi. Odwala omwe ali ndi astigmatism nthawi zambiri amatha kutopa atatha kuwerenga ndikupeza kuti makalata ndi mawu akuwonekera.
Kujambula ndi kumeta mutu kumawoneka kuti kumapangitsa kupotoka kwa masomphenya kumayambitsidwa ndi astigmatism.
Zimayambitsa
Astigmatism imayambitsidwa ndi cornea yomwe ili ndi mawonekedwe oblongola, ngati mpira, m'malo mozungulira, monga basketball.
Kornea yokhala ndi astigmatism ili ndi miyendo iwiri, imodzi yamphepete mwachindunji ndi imodzi yomwe ili yayikulu. Kuwala ndiye kumayang'ana pa mfundo ziwiri mmalo mwa chimodzi. Mfundo imodzi yoganizira ingakhale patsogolo pa retina ndi ina kumbuyo.
Izi zimapangitsa mafano kuti awoneke asokonezedwa powonjezera kuwonekera momveka bwino. Astigmatism ingayambitsenso chifukwa cha lens losaoneka ngati crystalline lens. Matendawa amatchedwa " astigmatism ".
Kudziwa
Astigmatism imapezeka ndi keratometer yachitsulo, chida chogwiritsira ntchito kuyeza kupindika kwa cornea. Keratometer imagwiritsidwanso ntchito pamayesero oyang'ana maso.
Matendawa amatha kupangidwanso pogwiritsira ntchito katswiri wa zojambulajambula. Katswiri wolemba zojambulajambula ndi chida chimene chimapereka mapu olembedwa ndi mitundu, ofanana ndi mapu a mapiri.
Malo ochepetsedwa amasonyezedwa m'malo ofiira ndi okongola kwambiri mu buluu.
Pulogalamu ya aberrometer yapamwamba idzapatsanso dokotala maso zambiri zokhudzana ndi kupweteka kwa magazi.
Kuchiza
Astigmatism ingakonzedwe ndi magalasi, kulumikizana ndi lens kapena opaleshoni.
- Magalasi: Magalasi amagwira ntchito bwino ndi odwala omwe ali ndi astigmatism. Odwala omwe ali ndi astigmatism ambiri ayenera kukhala ndi magalasi awo mosamala.
- Malonda othandizira: Zilonda zamakono zomwe zimakonzera astigmatism zimatchedwa openser lens . Odwala omwe ali ndi astigmatism ochulukirapo amakhala opambana kwambiri ndi gasi wochuluka omwe amatha kugwiritsidwa ntchito.
- Kuchita Opaleshoni: Njira yopangira opaleshoni yokonzanso njira komanso njira yodzikongoletsera, yomwe imatchedwa astigmatic keratotomy, imathandizanso kuti astigmatism isinthe.
LASIK Opaleshoni ndi Astigmatism
Ngati muli ndi astigmatism, musaganize kuti simungathe kuchitidwa opaleshoni ya LASIK. Ndizotheka kwa ambiri.
Opaleshoni ya LASIK imagwiritsidwa ntchito pokonza zolakwika za refractive monga astigmatism, myopia , ndi hyperopia . Anthu ambiri omwe ali ndi astigmatism apeza opaleshoni ya diso la LASIK kuti ikhale njira yabwino komanso yothandiza yolangizira masomphenya.
Pa chifukwa china, pali "manyazi" okhudza astigmatism pa LASIK. Komabe, odwala ambiri omwe ali ndi astigmatism akhoza kuchitidwa opaleshoni ya laser. Zambiri mwa izi zimachokera ku mfundo yakuti inali yoyamba ya vuto la masomphenya lovomerezedwa ndi FDA ku LASIK.
Kachilombo ka LASIK Komanso Kachilombo ka Keratectomy
Ngakhale anthu ambiri omwe ali ndi astigmatism angathe kukhala ndi LASIK, anthu ena ali ndi astigmatism yochuluka kwambiri kuti laser likonze. Komabe, nthawi zina akhoza kukhala ndi njira yowonjezera yotchedwa astigmatic keratectomy (AK) kukonza zotsalira zomwe zilipo.