Ukukhubazeka okubonakalayo kungabangela ukukhathala kwamehlo, ukubonakaliswa kwesimo sokuzalwa kwesimo noma izinguquko ezihlobene nobudala, kodwa ngokuvamile kuyisifo esihambisana nesinye isifo.
Izimbangela zombono ongeziwe
Ngokwezimo lezi zifo zingahlukaniswa ngamaqembu amaningana:
- izifo ngqo iso: lens, cornea, retina;
- izifo ezivamile ezingabangela umonakalo ohlelweni lwezinzwa noma izitsha ezibhekene nokunikezwa kwegazi emehlweni;
- izifo zamathambo ezinamehlo azungezile, isibonelo, imisipha noma izicubu ze-adipose.
Ngokuvamile, ukukhubazeka kombono kuhlotshaniswa nokuthuthukiswa kwe-myopia, lapho isithombe esingagxilwanga ku-retina, njengoba kwenzeka embonweni ovamile, kodwa ngaphambi kwayo. Izizathu zokuthuthukiswa kwe-myopia zihlanganisa:
- imithwalo emikhulu emehlo, ukukhathazeka kwabo, umsebenzi wokubukwa ngesikhashana esilandelayo, ngaphandle kokuphumula kwamehlo nokukhanya okuncane;
- ukulungiswa kwefa;
- ubuthakathaka bemisipha obangela ukuhlala kweso, futhi ngenxa yocansi layo;
- ukuhlukunyezwa kwekhanda;
- izifo ezihlukahlukene zamehlo, isimiso sezinzwa, imithambo yegazi.
Kodwa akufanele ubhale zonke izinketho zokubona okwesikhashana, kodwa ubone ukuthi ukuwohloka kombono kubonakala kanjani.
- Ukuwohloka kokungazelelwe kombono ngeso elilodwa, kungase kube uphawu lwezinkinga eziyingozi zokugeleza kwegazi. Ukubonisana okusheshayo nodokotela kudingekile, njengokwelashwa okungakapheli ukonakala okuphelele kungenzeka.
- Ubuhlungu emehlweni, kanye nokubukeka kwemibuthano yobuningi lapho ubheka umthombo wokukhanya, ikhanda elibukhali elihambisana nocindezelo olwengeziwe lingase libe uphawu lwe-glaucoma. Ukuvakashela kudokotela kuyadingeka ngokuphuthumayo.
- Uma kukhona i-clouding yensimu yombono, nokuphulwa kokucaca kwesithombe, kungakhathaliseki ukuthi ibanga lento, kungenzeka ukuthi ukuthuthukiswa kwe-cataract.
- Ehamba phambili ngaphambi kwamehlo emithunzi, ukwakheka okubukhali kweveli noma kwendwangu, kuze kuphele ukuphela kombono kuyimpawu yomsebenzi we-retina.
- Uma kukhona ukuwohloka kombono kusihlwa - khona-ke kukhona okuthiwa ubumpumputhe obusuku, okungabangelwa ukuphazamiseka kwezakhi zofuzo noma ukungabi namavithamini athile. Iphathwa ngokuhleleka okuhleliwe.
Ukwelashwa kokukhubazeka kombono
Ukuze uthathe isinyathelo, kubalulekile ukuthi uqale uqonde imbangela yalokhu ukuwohloka kombono, kanye nokuthi yiliphi uhlamvu. Kwezinye izimo, ukukhubazeka okubukwayo kungase kube okwesikhashana, okuhambisana nokukhathala. Kuyenzeka uma kwenzeka ukwedlula amehlo (isibonelo, umsebenzi oqhubekayo kukhompyutha) ukucindezeleka, ukulala, ukushisa ngokweqile. Ukunciphisa umbono kulokhu akubalulekile, futhi kuyanyamalala emva kokuphumula nokusetshenziswa kwezokuzivocavoca okubukwayo. Kodwa-ke, uma izingcindezi nezimo zokucindezeleka zihlala ziqhubeka, i-myopia engathà sina ingenzeka,
Kodwa, noma ngabe umbono awukwazi ukuvuselelwa ngokuphelele, ukuvocavoca kwamehlo nokudla kwe-vithamini okuqinisa izinkimbinkimbi kuzosiza ukuvimbela ukuwohloka kombono uma kunesimo esiseduze. Endabeni yokwehla kombono we-twilight, i-vitamin A ngezinye izikhathi ingasiza.
Uma ukwehla embonweni kubangelwa ezinye izici, kukhona ukuwohloka okubukhali kumbono, noma kunciphisa embonweni kwelinye iso, ngakho-ke kubalulekile ukubonisana nodokotela, ngoba lokhu kungase kube uphawu lwezifo ezimbi, kaningi ngemiphumela engavumeleki futhi kuholele ekumpumpheni okuphelele.