Chii astigmatism, chinokonzera ayo uye kurapwa

mavambo

Nechekare kubva zita unogona kufungidzira nyore zviri astigmatism uye chii kunosanganisira. Zita chirwere chepakutanga akagashira kubva rechiLatin rokuti "rusarura", iro rinoreva "nguva". Muchiitiko chino, rinoreva mufananidzo rainyanya kukosha. zita iri yakapiwa kwete tsaona, nekuti musimboti hosha nhema chaiyo mune zvakaipa wevasungwa pamusoro danda chiedza mwaranzi.

Zvakakurukurwa chirwere

Astigmatism ane ziso ndechimwe chezvinhu zvakafanana nezvirwere zvenyika. Kutaura zvazviri, mune rimwe dhigirii kana mumwe, vanotambura inenge hafu yevanhu vose panyika. Vakawanda chirwere ichi kunotanga muduku. Kunzwisisa astigmatism ndiyo nyore nzira, kuongorora ruzivo inokosha pamusoro sechivako ziso. Zvinozivikanwa kuti maziso evanhu vane mbiri Manyiminya enyika kuti chiedza refraction. Ndiwo cornea uye izvo, Zvinokosha zvakaenzana kuvaka mufananidzo rworudyi pamusoro the retina. Kuarwisa mazano nevamwe, mumwe nomumwe ane pachake zvachiri, asi chimwe chinhu chakafanana vane - vanonzi yokuti curvature. The cornea munhu utano munhu ane chimiro ane curvature anenge akakwana. Saka, chiedza danda kupfuura therethrough achingoraramira chaiyo pamusoro the retina. In vanhu vane vasanyatsoona, nhamba idzi zvakachinja.

Chii astigmatism kubva esayenzi maonero

Saka chii astigmatism? Ichi chiono Blurred kunoitika nguva dzose, asi zvakaoma chaizvo kutsanangura. Mune zvisingawanzoitiki Muzviitiko, chikonzero chiri sizvo chimiro ophthalmic izvo. Asi vakawanda vavo chirwere chiri akarondedzera Manyiminya kusarurama kuti kunoitika lenses zvose zvakananga. Zvino cornea , zvakare, ine idenderedzwa chimiro, ndiko pfungwa hwokuzvarwa nahwo. Yakarurama chimiro nokuti kuonekwa idenderedzwa neMhedziso, anokwanisa refract kuti mwaranzi yechiedza chero mundege iyeyo. Asi Kunewo flattened, kana, nekusiyana, elongated. cornea akadaro haagoni zvakanaka ita mufananidzo, curvature aro dzimwe nzvimbo zvakasiyana, uye saka mwaranzi wakawira the retina, vakawana kuenzana. Izvi zvinokonzera kuti kukanganisa kushandisa chaiyo zvinhu kumativi. Mumaziso munhu achitambura astigmatism, hapana kuroorwa rainyanya kukosha, mukusiyana kuti ziso hwakanaka munhu. Nokuda damerau pfungwa mufananidzo goho riri kujeka, uye kana pamwe Blurred contours.

Chii astigmatism vawana mhando

Zvinozivikanwa kuti hosha tinoberekwa kwete chete kune vakuru: chinowanzoonekwa chirwere muvana. Zvinogona vachiberekwa kana vawana astigmatism. Last kunoitika apo utano kunotevera kunokonzerwa scarring ari cornea, uyewo mushure yakaipa kwema - nemhaka kuvhiyiwa kukodzera.

Vachiberekwa astigmatism: chii uye sei chinoratidza pacharo.

Muchiitiko chino, kana totaura kuti vachiberekwa kuremara maonero, anouya yedzinza. Kazhinji, astigmatism vanotambura pakuberekwa vana avo vane vabereki vane chirwere kuvapowo. Asi vachiberekwa mhando chirwere ichi yakaderera madzerere uye anongoda asingadi kukanganisa hasha dzaro, uye saka anoenda kuzviona. vanhu vazhinji muupenyu hwake havana kutomboziva ivepo.

Zviratidzo astigmatism

Symptomatology chirwere kunoratidzwa kwete chete munzvimbo pachena Kuipa kuti pasina nenguva kupindira anokwanisa kufamba nenzira kupfuura chakakomba Danho. Astigmatism chiri kazhinji pamwe kuramba tichishanda nomusoro kutarisana mutoro, kunyanya lacrimation, ziso kuzvimba uye chinjwa kumicheto remakore. Zvinokwanisika panowanikwa conjunctivitis, chinyamunhari chinorwadza mumaziso , uye mukuru kuneta.

pakurapa chirwere

Pari zvikuru kushandiswa nzira nhatu pane astigmatism kurapwa :

- kupfeka magirazi;

- kwokupfeka kwokururamisa lenses;

- kuvhiyiwa.

Pazvinhu maviri okutanga anoshandisa lenses yakaoma uye magirazi ane cylindrical marongerwo. Chinetso ndechokuti kusvikira vakanga yainyanya kuwanika munyika ino. Tinofanira kuita magirazi uye lenses arayire vakadaro. Kazhinji vanofanira kushandurwa kupfuura kamwe kuwana rakakodzera, uye havasi chisingakoshi. Uyewo, varwere vakawanda kuva kusashivirira, kunongoita zviratidzo astigmatism: ziso kusanzwa, kutemwa kana nzwa dzungu.

Kushanda kupindira ane zvinokosha zvakwakanakira. Inouya pamwe magetsi kukura zvemichina nokukurumidza wakanaka uye anobatsira murwere kudiwa mamwe chiratidzo kururamiswa nedzimwe nzira. The curvature of cornea mune iyi iri mumuviri zvachose. Kuvhiya nzira kubata astigmatism ane chikuru kunyatsoshanda pakati zvose munazvo, ichipa migumisiro yakanakisisa iri pfupi.