Cataract chirwere cheziso, umo mune chinyorwa chema-lens uye sechikonzero chekusaona kwemaonero, kusvika pakurasikirwa kwayo kwakakwana.
Zvinokonzera kukanganisa
Cataract inowanzokura nemakore, asi inogona kutsamwiswa nezvinhu zvinowanikwa nhaka, kushungurudzika kana kukura sechinetso mune dzimwe zvirwere.
Zvirwere zvinokonzerwa nezera zvakanyanya, asi zvinokura zvishoma nezvishoma, uye zviratidzo zvayo hazvioneke pakarepo. Kubudirira kwechirwere kunogona kutora kubva pamakore mashanu kusvika ku15. Kushungurudzika uye mamwe marudzi emakemikari kazhinji anowanzoonekwa munguva shoma shoma.
Nhanho dzemaziso ecataract
Muchirapa, kune zvikamu zvina zvecataract:
- kutanga;
- immature;
- vakakura;
- overripe.
Pachikamu chekutanga checataract zviratidzo hazvirevi kuratidzwa, kufema kunobata zvikuru nzvimbo dzenharaunda, uye chirwere chacho chinogona kuenda chisingaoneki.
Muchigamba chisina kumira, kuora kunokanganisa lens rose, kune kuwedzerwa kwemaonero anooneka uye, kazhinji, zvakanyanya kuwedzera mukati mekudzivirira mukati.
Panzvimbo yakakura, mhepo yakasimba ye lens inoonekwa, kuitira kuti murwere aone zvisingaitiki, chete ari pedyo nemeso.
Mutsara wechina, hutarisiro hwechiono hunoramba hwakangofanana nehupfuura, mudzidzi anowana ma-milky-white hue, kushandiswa kwemuitiro mujinga reziso rinoonekwa.
Zviratidzo zvehutachiona mumatangiro ekutanga
Pachikamu chekutanga checataract, zviratidzo zvinotevera zvinogona kuitika:
- kuonekwa pamberi pameso erima uye nhunzi ;
- kuburitsa kwechifananidzo, kunyanya kuonekwa kana ziso rimwe rakafukidzwa;
- kuora kwemaonero ekusiku;
- kuwedzera photosensitivity;
- kuwedzera kwokuneta kweziso painoisa pfungwa pane zviduku;
- dzimwe nguva inowedzera myopia kana hyperopia.
Sezvo chirwere chinokura:
- kunonoka kuonekwa (nyaya dzinooneka dzakashata), uye
Kugadzirisa kukanganisa nekubatsirwa kwegirazi hazvibviri; - kukanganisa kworuzivo rwekunzwisisa (kuoma mukusiyanisa mavara, kazhinji ose mumunda wekuona anotora yellowish tinge);
- chimiro cheharo chakakomberedza magetsi;
- photophobia.
Mune zvikamu zvekutanga zve cataract (kunze kwekuzvarwa), mishonga uye nzira dzokurapa dzokurapa dzinowanzoshandiswa. Asi mumatanho ekuzotevera, nekunetseka kwakanyanya kwema-lens, kupindira kwekuvhiya kunoitwa pamwe nekugadziriswa kwe lens yeziso .