Incazelo: "Ukubona okwesibili" kubhekisela ekuguqulweni kwesikhashana embonweni ngesikhathi sokuthuthukiswa kwe-cataract ekuqaleni. Ngaphambi kokuba umbono ubheke, umbono, ikakhulukazi umbono wokufunda, uthuthukise kakhulu. Ezinye iziguli zibika ngokucacile eduze kombono ngaphandle kokusebenzisa izibuko zokufunda . Umbono oseduzane ubhekisela embonweni wezinhloso ezimbili ezinyaweni noma eduze kombukeli. Lezi zinguquko zenzeka ngoba amaprotheni nezinye izinhlanganisela ezakha i- lens ziqala ukushintsha isakhiwo.
Lokhu, futhi, kushintsha indlela ukukhanya kuguquka ngayo lens, okwenza ngcono okwesikhashana embonweni oseduze.
Ingabe wonke umuntu uzothola "Ukubukwa Kwesibili?"
Cha. Nakuba sonke sibhekana nezinguquko ezenzeka ngaphakathi kwe-lens yethu, imiphumela yaso incike kunoma yiluphi uhlobo lwenkinga yombono isiguli esasike sibe nalo ngaphambili, ukuthi isimo sokuphikisa sasihlotsheni ngaphambili. Isibonelo, uma usuvele ubheke, i- "Second Sight" izokukwenza ube ngaphezulu nakakhulu. Abantu abathola izinzuzo ze "Ukubukwa Kwesibili" ngokuvamile babheka phambili noma ngokuvamile abanakho inkinga yokubuka ukuqala.
Kungani i-crystalline lens ishintsha?
Amehlo ethu ahlale ecindezeleka ngezimo zangaphandle. Enye inqubo imizimba yethu ehlala ilwa nayo imonakalo ye-oxidative, ebizwa nangokucindezeleka kwe-oxidative. Ukucindezeleka oxidative yiyona impi eqhubekayo ukuthi imizimba yethu ilwa nama-radicals yamahhala, ama-molecule ane-oksijini asebenza kahle futhi awonakalisa amangqamuzana emzimbeni wethu.
Ukucindezeleka okwenziwe nge-oxidative kungashintsha amangqamuzana angaphakathi kwe-lens esweni okwenza ukuba lens ilahlekelwe kancane. Nakuba le nqubo ihamba kancane kancane kuzo zonke izimpilweni zethu, iyasithatha uma sikhula futhi ngaphambi kokuba ithinte kakhulu umbono wethu, sivame ukubona "ukubuka okubili".
Iyini i-cataract?
I-cataract i-clouding ye- lens yeso . I-cataract yiyona imbangela ehamba phambili yobumpumputhe phakathi kwabantu asebekhulile kunama-55. Iningi labantu asebekhulile banezinga elithile le-lens clouding, okuyingxenye evamile yokuguga. I-cataract ngokuvamile ayibuhlungu. Ngokuvamile iqala njengendawo encane, i-opaque futhi ikhula kancane kancane. Umbono awuvame ukuthinteka kuze kube yilapho indawo enkulu yelensi iphenduka khona. Izimpawu ezibonakalayo ze-cataract zibukeka kahle, ukuzwela okukhanya, ama-halos azungeze izibani, kunzima ukushayela ebusuku, umbono ophelile, udinga ukukhanya okungaphezulu kokufundwa, umbono ophindwe kabili noma ushintsho olukhulu imiyalelo ye-eyewear.
Yini okufanele uyenze uma ucabanga ukuthi uthola ukubona okwesibili?
Uma ucabanga ukuthi ufunda kungakapheli kamuva ngaphandle kwezibuko zakho, bheka i-optometrist yakho noma i-ophthalmologist. Uma umbono wakho obuseduze ngokungazelelwe ungcono kunanini ngaphambili, kungenzeka ukuthi ukubuka kwakho ibanga kungase kube kubi nakakhulu. Ngezinye izikhathi, uma kwenzeka okwesibili ukubona, okwenzeka ngempela ukuthi uqala ukubonakala. Amanani amancane okungaqondakali angenza umbono wakho oseduze ube ngcono ngenkathi ukwenza ibanga lakho libonise ibanga. Udokotela wakho wezilanga uzolinganisa ubuciko bakho obubukwayo bese eqedela ukukhipha, ukuhlolwa okukhunjulwayo okubuzwayo, "Yikuphi okungcono, owodwa noma amabili?" I- refraction izobonisa ukuthi imithi yakho yesidakamizwa ishintshe kakhulu.
Udokotela wakho wezandla uyophinde ahlaziye amehlo akho futhi abuke ngaphansi kwe-bio-microscope ekhethekile ukuze abone ukuthi ukuthuthukiswa kwe-cataract kwenzeka noma uvele ushintsho olujwayelekile lwesiguli.