I-band keratopathy yintlupheko echaphazela i- cornea , isakhiwo esicacileyo se-dome-inxalenye engaphambili kweso. I-band keratopathy ibonakaliswe ngumgca we-calcium odibeneyo ofakwa kwi-cornea.
Idiphozithi ibonakala ihlaziye kwaye imhlophe-igreyida ngombala kwaye ibukeka njengento efana ne-swiss-cheese. I-calcium iyafakwa kwi-cornea phakathi kwendawo evulekileyo kwaye ibonakala phakathi kweentloko zelifu xa iso livulekile.
Izizathu
Kucatshangelwa ukuba i-keratopathy ibangelwa kwiimeko ezinyukisayo amanqanaba e-calcium emzimbeni ezinjengeesifo sesifo, i-vitamin D eyongezelelekileyo, amazinga e-thyroid aphezulu, i-sarcoidosis, i-lupus kunye ne-Paget isifo, imeko apho kukho ukuphazamiseka okukhulu amathambo.
Iindlebe ziqulethe ixabiso elincinci le-calcium. Ukufudumala okuqhelekileyo kwezinyembezi zakho kubangela ukuba i-calcium ikhuliswe. Oku kwenzeka ngakumbi kwinxalenye ye-cornea evulekile emoyeni. Nangona kunjalo, xa iinyembezi zinomlinganiselo ophezulu kunezinga eliqhelekileyo le-calcium, oku kwenzeka kwizinga eliphezulu kakhulu. Ngenxa yokwakhiwa okungavumelekanga kwezinyembezi, izinga le-asidi yeenyembezi liguquka kubangela ukuba inkqubo ivele kwaye ikhawuleze, nto leyo ibangele i-band keratopathy. Iimeko ezithile zonyango ezikhankanywe ngasentla ezenza ukuba i-calcium ikhule emzimbeni inokubangela ukuba oku kwenzeke. Nangona kunjalo, i-calcium iyakwazi ukwakha kwiinyembezi ngeemeko zamehlo ezibangela ukuvuvukala okungapheliyo.
Kwakhona, abantu abaneemeko ezibangela ukuvuvukala kwe-cornea okanye ukuhlaziywa kwamaseli e-corneal baziwa ngokuphuhlisa i-band keratopathy.
Iimeko zamehlo ezibangela ukuvuvukala okungapheliyo zingenza ukuba i-band keratopathy iphuhlise:
- i- glaucoma yexesha elide okanye ekupheleni
- engapheliyo iritis (uveitis)
- dystrophies
- i-phthisis bulbi (i-shrunken, iliso elingasebenziyo kwisifo esibi okanye sisifo esibuhlungu)
- i-arthritis yabantwana
Omnye unokukwaziswa kwezinye izinto ezingaphandle zangaphandle, ezinokuthi, emva kwexesha, kubangele i-band keratopathy. Ukunyanzeliswa okungaqhelekanga kwimipu ye-mercury kuye kwaziwa ngokuba kubangela i-band keratopathy. Kwakhona, izilondolozo ezinesistim se-mercury ziye zafunyanwa kwiyeza elithile le-ophthalmic.
Iimpawu
I-calcium deposits ingaba yinyani. Ngamanye amaxesha, banokuyeka kwaye babangele ubuhlungu kunye nemijelo ebusweni belihlo. Ezinye iimpawu zi:
- imbonakalo ephosakeleyo okanye yehla
- inzwa yentlabathi okanye isantya kwiso
- obomvu
- ukucaphuka
Unyango
Ulwaphulo lwe-keratopathy lwamanqanaba lubandakanya unyango lweekhemikhali olubizwa ngokuba yi-chelation. I-Chelation yinkqubo yeekhemikhali esebenzisa i-EDTA (ethylenediamine-tetraacetic acid) ekhupha i-calcium kwi-cornea. Emva kwe-chelation, ngokuqhelekileyo i-laser ye-excimer, efana neyetshenziselwa i-LASIK, isetyenziselwa ukususa nayiphi na i-calcium eseleyo kwaye igubungele phantsi.
Emva kwenkqubo, mhlawumbe i- memni okanye i-bandage yothintana ne-lens ifowuni isetyenziswe kwiso kwiiveki ezimbalwa. Iimvavanyo zegazi zingadinga ukuba zenziwe ukuze zichongiwe isizathu esona sizathu sokuthi i-band keratopathy okanye iya kuqhubeka.