Arcus senilis ndeyecheche kana grey opaque ring kana arc kumativi ekona yeziso. Iyo cornea ndiyo yakajeka, dome-yakafanana sarudzo mukati mechikamu chekutanga cheziso. Iyo cornea inoumbwa nematanhatu matanhatu akasiyana uye inowanzooneka pachena. Iyo cornea inopa chikamu chikuru chemasimba ekudzivisa kweziso kuitira kuti chiedza chechiedza chizoenderera kune retina. Arcus senilis inowanzoonekwa kune vakwegura, asi dzimwe nguva iripo pakuzvarwa.
Apo arcus senilis inokura muhupenyu hwepakutanga kana hwepakati, inotumidzwa se arcus juvenilis. Iyo arc kana rin'i iyo inowanikwa ne arcus senilis inobva lipids (mafuta) kana cholesterol yakaiswa mu-cornea.
Zvinokonzera
Arcus inogona kukura mumaziso edu wose kana tikararama kwenguva yakakwana. Kune vanhu vakawanda, arcus inonyanya kuipa uye haigoni kuchinja maonero. Zvisinei, apo chikonzero chinowedzera kune vanhu vaduku pane makore anenge makumi mana, pane chikonzero chekufunganya. Nekuda kwekuti arcus ndiyo inoshandiswa ye lipids, kana iwe uine arcus uye iwe uri muduku kudarika makumi mana, inogona kureva yakakwirira yeropa ropa uye naizvozvo inogona kuwedzera cholesterol.
Kuwirirana pakati pe arcus uye high cholesterol kana atherosclerosis kwave kukakavhiringidza zvikuru. Kubva kare muna 1852, chiGermany chirwere Rudolf Virchow akakurukura kusangana pakati pekorneal arcus uye atherosclerosis. Zvisinei, makore anopfuura makumi mana gare gare, chiremba William Osler akaratidza kuti chikonzero chakanga chisina kuongororwa kwe "kuora mafuta" kwemoyo.
Kunyange ikozvino, kubatana pakati pe arcus uye vascular lipid deposits inopokana zvikuru. Muna 2008, National Institutes of Health yakabudisa nyaya yakagumisa achiti: "Corneal arcus inoratidza kuwanda kwemaviri uye kuwirirana nezvose calcific atherosclerosis uye xanthomatosis mune varwere ava.
Varwere vane arcus yakaoma vanowanzove vakaoma zvikuru calcific atherosclerosis. Corneal arcus ... inokurudzira kuwedzera atherosclerosis mune idzi hypercholesterolemic varwere. "
Kuziva
Apo vanachiremba vanoita kuongororwa kweziso , zvinhu zvakawanda zvinotorwa mukufungisisa vasati vaita kuongorora. Semuenzaniso, kana chiremba achiona chikonzero mumunhu muduku, ivo vachanyatsoteerera zvavakawana mune retina. Penguva yekuongorora, madonhwe eziso anokosha achaiswa muziso kuti awedzere mudzidzi. Apo ziso rinoputika, mishonga yeropa re retinal inotariswa nokuda kwezviratidzo zvezvirwere. Kuonekwa kweropa yemuviri uye kuwanda kunogona kupa ruzivo kune zvinokwanisika zvakakosha uye zvinonzi atherosclerosis. Kana painoonekwa seine atherosclerosis ye retinal mitsara yeropa, uye murwerewo anowanzova nechokuita, saka zvinowanzoitika kuti iye achakurudzira kushanyira kuchikoro chako chikuru, chiremba kana cardiologist.
Kurapa
Iko hakusi iyo nzira yakanaka yekuita arcus kuenda. Vamwe vakatsigira maziso ekunyora kuti vabatsire kuvhara. Zvisinei, kune chikamu chikuru, izvi hazvikurudzirwi munharaunda yezvokurapa.
Zvaunofanira Kuziva
Vazhinji vanachiremba vemaziso vanoita nemitemo yakawanda mupfungwa pazvinosvika kune arcus.
Mune varwere vanopfuura makore makumi mana emakore, arcus inowanzowedzera kushaya ruzivo. Zvisinei, kana iwe uri muduku kudarika makumi mana, ona chiremba wemhuri yako uye zvishoma nezvishoma utano hwako hwehushutera huchaongororwa. Sezvo iwe uri muduku kudarika makumi mana uye une chikonzero, hazvirevi kuti iwe wakanyatsokwidziridzwa mafidhi, asi pane zvishoma, zvinokurudzirwa kuti iwe wakazviongorora.
Uyewo Anozivikanwa Se: Arcus senilis corneae