I-Cataract isifo selihlo, apho kukho i-clouding ye-lens kunye nesiphumo sokukhubazeka okubonakalayo, de kube ilahleko epheleleyo.
Iimbangela zokunyanga
I-Cataract ihlala ikhula ngeminyaka ubudala, kodwa iyakuchukunyiswa yizinto ezinobomi, ukukhathazeka okanye ukukhula njengengxaki kwizifo ezithile.
I-cataracts ehlobene nobudala ixhaphakile, kodwa ikhula ngokukhawuleza, kwaye iimpawu zayo azibonakali ngokukhawuleza. Ukuphuhliswa kwesi sifo kungathatha iminyaka emi-5 ukuya kwe-15. Inkathazo kunye nezinye iintlobo ze-cataracts zivame ukubonakala ngexesha elifutshane.
Amanyathelo esiso se-cataract
Kwiyeza, kukho izigaba ezi-4 ze-cataract:
- kuqala;
- ukukhulelwa;
- khulile;
- phezulu.
Kwinqanaba lokuqala le-cataract iimpawu azibonakalwanga, ukukhanya kwamanzi kuthintela ikakhulukazi kwiindawo zepheripher, kwaye isifo singenakunakwa.
Kwisigaba sokuqala, ukuphazamiseka kukuphazamisa yonke i-lens, kukho ukuhla kwezinto ezibonakalayo kwaye, ngokuphindaphindiweyo ngokwaneleyo, ukunyanzeliswa kwe-intraocular.
Kwinqanaba elivuthiweyo, i-clouding eqinile ye-lens iyaqwalaselwa, ukuze isiguli sibone ngokungathandabuzekiyo, sisondele kuphela kwamehlo.
Kwinqanaba lesine, umgangatho wombono uhlala ufana neyaphambili, umfundi ufumana i-milky-white hue, utshintsho olwenziwe kwilen yelihlo lugcinwe.
Izibonakaliso zengcinezelo kumanyathelo okuqala
Kwinqanaba lokuqala le-cataract, ezi zilandelayo ziyakwenzeka:
- ukubonakala phambi kwamehlo amnyama kunye neempukane ;
- ukuxhamla komfanekiso, ngokukodwa okubonakalayo ukuba iso linye lifihliwe;
- ukutshatyalaliswa kwemibono yasebusuku;
- ukwandiswa kwezithombe;
- ukwandisa ukukhathala kwamehlo xa ugxila kwiinkcukacha ezincinci;
- maxa wambi i-myopia ehamba phambili okanye i-hyperopia.
Njengoko eso sifo siqhubeka:
- ukubonakala okuncitshisiwe (izifundo zibonakala ziphazamisekile), kwaye
Ukulungisa isiphako ngosizo lweziglasi akunakwenzeka; - ukuphulwa kombala wokubona (ubunzima bokuhlukanisa imibala, ngokuqhelekileyo bonke abasemgangathweni wombono bafumana i-tinge ephuzi);
- ukubonakala kwe-halo ejikeleze imithombo yokukhanya;
- photophobia.
Kwinqanaba lokuqala le-cataract (ngaphandle kobungqeleka), iindlela zonyango nezonyango zisoloko zisetyenziswa. Kodwa kwinqanaba lexesha elizayo, ngokuchithwa okukhulu kwe-lens, ukungenelela okucetywayo kwenziwa ngokutshintshwa kwelensi yeso .