Ngenxa yokusuleleka kwintsholongwane ye-bacteria, ye-viral okanye yefungal kunye nokuqala kwenkqubo yokuvuvukala, i-keratitis yesilonda okanye isilonda sesisu singakhula. Le nzala inezinye izizathu, umzekelo, ukunyamekela kwamehlo, ukuchithwa kweekhemikhali kunye nokushisa okuphezulu, kunye neengxaki ze-neurological disorders. Esi sifo siqhelekile, ngakumbi kubasetyhini abangaphezu kweminyaka engama-40.
Izilwanyana ezilwanyana
Izinto ezibangela ukuba isifo sifumane ukulimala okanye ukusuleleka kwiibhaktheriya, ngokuqhelekileyo iFrenkel pneumococcus, inqabileyo - nge staphylococcus okanye streptococcus.
Inkambo yezilonda ezinwabuzelayo isicacile, kwaye uphuhliso lukhawuleza. Ekuqaleni isigulane sivakalelwa intlungu ebuhlungu kwijoni elonakalisiweyo, ukugwenxa okukhulu kuphawulwa.
Igama lohlobo lwesifo esikulo mbuzo luchazwe ziimpawu eziqhelekileyo zesakhiwo sesilonda kwi-cornea. Unomngcipheko ohlaziyiweyo kunye nokuqhubekayo. Inkqubela yokuqala iphilisa ngokuzimeleyo, kwaye yesibini, iphakanyisiwe, iphakanyiselwe kwinqanaba le-eye-creeps.
Isilonda esisilungileyo sesilonda
Le fom ye-pathology ibonakaliswe ngokubunjwa kwe-infiltrate kwinxalenye engezantsi yesilonda. Kancinci, ukuvunywa okunjalo, okubizwa ngokuba yi-hypopion, kwanda ngobukhulu, kubangela ukujuliswa kwesilonda esiswini, kufakwa kwi-cornea yemithwalo yegazi ejulile kunye negazi.
Isizathu sesilonda esiswini se-microtrauma, emva koko iindawo ezonakalisiweyo zamehlo zihlanganiswe ngezinto ezinomsoco ezimhlophe okanye eziphuzi eziguqulwa zibe yi-exudate.
I-Central kunye ne-side corneal ulcer
Indawo yokulonda ixhomekeke kwizinto eziyichukumisayo.
Ngaloo ndlela, izilonda kwiziko le-cornea zenzeke ngezi zizathu zilandelayo:
- nzakala;
- amehlo omeleyo ;
- exophthalmos;
- trichiasis;
- entropion.
Ulcers kwimida kunye ne-sclera yenzeka ngenxa yezi zifo zilandelayo:
- rosacea ;
- i-rheumatoid arthritis;
- i-systemic sclerosis.