●Yini i-cataract?
Iso lifana nekhamera i-lens esebenza njengekhamera yekhamera esweni. Lapho isencane, ilensi iyabonakala, iyanwebeka futhi iyasondeza. Ngenxa yalokho, izinto ezikude neziseduze zingabonakala ngokucacile.
Ngokukhula, lapho izizathu ezahlukahlukene zenza ushintsho lwe-lens permeability kanye nokuphazamiseka kwe-metabolic, ilensi inezinkinga ze-protein denaturation, edema kanye ne-epithelial hyperplasia. Ngalesi sikhathi, i-lens ejwayele ukucaca njengejeli izoba yi-turbid opaque, okungukuthi nge-cataract.
Kungakhathaliseki ukuthi i-opacity ye-lens inkulu noma incane, ithinta umbono noma cha, ingabizwa ngokuthi i-cataract.
● Izimpawu ze-cataract
Izimpawu zakuqala ze-cataract ngokuvamile azibonakali, kuphela ngokungaboni kahle. Iziguli zingase zikubheke ngephutha njenge-presbyopia noma ukukhathala kwamehlo, ukuphuthelwa ukuxilongwa kalula. Ngemva kwe-metaphase, ukufiphala kwelensi yesiguli kanye nezinga lokungaboni kahle kuyathuthukiswa, futhi kungase kube nokuzwa okuthile okungavamile okufana ne-double strabismus, i-myopia kanye nokucwayiza.
Izimpawu eziyinhloko ze-cataract yilezi:
1. Umbono Okhubazekile
I-opacity ezungeze ilensi ayikwazi ukuphazamisa umbono; nokho ukufiphala kwengxenye emaphakathi, noma ngabe ububanzi buncane kakhulu, buzothinta kakhulu ukubona, okubangela ukwenzeka kokungaboni kahle kanye nokwehla komsebenzi obonakalayo. Uma i-lens iguqubele kakhulu, ukubona kungancishiswa kube ukubona okukhanyayo noma ngisho nokungaboni.
2. Ukwehliswa kokuzwela kokuqhathanisa
Ekuphileni kwansuku zonke, iso lomuntu lidinga ukuhlukanisa izinto ezinemingcele ecacile kanye nezinto ezinemingcele engaqondakali. Uhlobo lwakamuva lokuxazulula lubizwa ngokuthi ukuzwela kokuqhathanisa. Iziguli ze-cataract zingase zingazizwa ngokusobala ukwehla kokubona, kodwa ukuzwela okuphambene kuyehla kakhulu. Izinto ezibonakalayo zizovela ziguqubele futhi zifiphele, kubangele isenzakalo se-halo.
Isithombe esibonwa ngamehlo ajwayelekile
Isithombe esibonwe esigulini esiphezulu se-cataract
3. Shintsha nge-Colour Sense
Ilensi eguquguqukayo yesiguli se-cataract imunca ukukhanya okwengeziwe okuluhlaza okwesibhakabhaka, okwenza iso lingazweli kakhulu imibala. Izinguquko kumbala we-nucleus welensi nazo zithonya ukubona kombala, ngokulahleka kokugqama kwemibala (ikakhulukazi eluhlaza okwesibhakabhaka nokuhlaza) phakathi nosuku. Ngakho-ke iziguli ze-cataract zibona isithombe esihlukile kubantu abavamile.
Isithombe esibonwa ngamehlo ajwayelekile
Isithombe esibonwe esigulini esiphezulu se-cataract
●Indlela yokuvikela nokwelapha i-cataract?
I-cataract yisifo esivamile futhi esivame ukuvela ku-ophthalmology. Ukwelashwa okuyinhloko kwe-cataract ukuhlinzwa.
Iziguli zangaphambi kwesikhathi zokwethuka kwe-cataract azinawo umthelela omkhulu empilweni yombono wesiguli, ngokuvamile ukwelashwa akudingekile. Bangakwazi ukulawula izinga lokuthuthuka ngomuthi wamehlo, futhi iziguli ezinezinguquko ezishintshayo zidinga ukugqoka izibuko ezifanele ukuze zithuthukise ukubona.
Lapho i-cataract iba yimbi kakhulu futhi ukungaboni kahle kuthinta impilo yansuku zonke, kufanele uhlinzwe. Ochwepheshe babonisa ukuthi umbono wangemva kokuhlinzwa awuzinzile esikhathini sokululama phakathi nenyanga engu-1. Ngokuvamile iziguli zidinga ukuhlola i-optometry ezinyangeni ezi-3 ngemva kokuhlinzwa. Uma kunesidingo, gqoka izibuko (i-myopia noma ingilazi yokufunda) ukuze ulungise ukubona kude noma eduze, ukuze uthole umphumela ongcono wokubuka.
I-Universe Lens ingavikela ezifweni ze-ophthalmic, ulwazi olwengeziwe pls vakashela:https://www.universeoptical.com/blue-cut/