I-Cataract isifo esweni, lapho kune-clouding ye-lens futhi ngenxa yokukhubazeka okubukwayo, kuze kube yilapho sekulahlekelwa ngokuphelele.
Izimbangela ze-cataract
I-Cataract ivame ukukhula ngeminyaka, kodwa ingashukunyiswa yizici ezifuywayo, ukuhlukumezeka noma ukukhula njengenkinga kwezinye izifo ezithile.
Izidakamizwa ezihlobene nobudala zivame kakhulu, kodwa zikhula kancane, futhi izimpawu zayo aziveli ngokushesha. Ukuthuthukiswa kwesifo kungathatha iminyaka emihlanu kuya kweyishumi nanhlanu. Ukuhlukumezeka nezinye izinhlobo ze-cataract ngokuvamile zivela esikhathini esifushane kakhulu.
Izitebhisi zeso le-cataract
Ezokwelapha, kunezinyathelo ezine ze-cataract:
- okokuqala;
- i-immature;
- ukuvuthwa;
- ngaphezulu.
Esikhathini sokuqala se-cataract izimpawu ngokuvamile azibonakalwanga, i-cloudiness ithinta ikakhulukazi ezindaweni zomhlaba, futhi lesi sifo singase singaboni.
Esikhathini sokuqala, ukushaywa umoya kuphazamisa lonke i-lens, kunciphisa ukubonakala okubonakalayo futhi, ngokuvame ukwanele, ukwanda kwe-intraocular.
Esigabeni esivuthiwe, kugcinwa i-clouding eqinile ye-lens, ukuze isiguli sibone ngokungabonakali, kuphela esiseduze namehlo.
Esigabeni sesine, ikhwalithi yombono ihlala efana neyaphambilini, umfundi uthola i-milky-white hue, izinguquko ezakhiwe emlenzeni iso.
Izimpawu zokubhebhetheka izifo ezinkathini zokuqala
Esikhathini sokuqala se-cataract, izimpawu ezilandelayo zingenzeka:
- ukubonakala ngaphambi kwamehlo amachashazi amnyama nezimpukane ;
- i-bifurcation yesithombe, ikakhulukazi ebonakalayo uma iso limbozwe;
- ukuwohloka kombono ebusuku;
- ukwandisa izithombe;
- ukwandisa ukukhathala lapho ubheka imininingwane encane;
- ngezinye izikhathi i-myopia eqhubekayo noma i-hyperopia.
Njengoba lesi sifo siqala:
- ukubonakala okunciphise (izifundo zibonakala zizwakala), futhi
Ukulungisa iphutha ngosizo lwezibuko akunakwenzeka; - ukwephulwa kombono wokubona umbala (ubunzima bokuhlukanisa imibala, ngokuvamile okusemkhakheni wokubuka kuthola i-tinge ephuzi);
- ukubonakala kwe-halo ezungeze imithombo yokukhanya;
- photophobia.
Ezigaba zokuqala ze-cataract (ngaphandle kokubeletha), izindlela zokwelapha zokwelapha nezindlela zokwelapha ngokuvamile ziyasetshenziswa. Kodwa ngezigaba kamuva, ngokukhishwa okukhulu kwe-lens, ukungenelela okuhlinzekwayo kwenziwa nge- substitution lens iso .