I-Keratoconus yisimiso esithinta i-cornea, isakhiwo esicacile se-dome-like on the front of your eye. Kancani kancane futhi kancane kancane, i-cornea iqala ukuphuma ngaphandle futhi ibe yindlala.
Nge-keratoconus, uzobe uqala ukubonakala futhi ungathuthukisa inani elikhulu nelingavamile le-astigmatism. Njengoba isimo sakho siqhubeka, i-cornea ingahlakulela izicubu ezibomvu.
Kwezinye izimo, ukuqina kwe-cornea kungaba okuphawulekayo kangangokuba kungabonakala ngokucacile ngaphandle kwe-microscope.
Ukulungiswa kombukiso
Njengoba i-keratoconus iqhubekela phambili, ungase uqale ukuzwa kahle noma ukuhlanekezela umbono onzima ukulungisa nama-eyeglass. Uma lokhu kwenzeka, amalensi oxhumana nawo avame ukuphakanyiswa udokotela wakho we-eye. Uma i-cornea yakho iphikisiwe kakhulu, i- lensi egqinsile ye-lens noma ama-lens anesibindi anama-lens anconywa. Lezi zensimbi zivame ukumboza ngokuphelele i-cornea, futhi kanye nalokho okubizwa ngokuthi i-lens lens (izinyembezi ezigcwalisa ngaphansi kwe-lens), i-mask astigmatism engavamile, ukuqina noma ukuphazamiseka. Nakuba le ndlela isebenza kahle kakhulu ezimweni eziningi, abanye abantu ababhekene ne-keratoconus baxhumene no-lens, ngenxa yamehlo owomile noma mhlawumbe ngenxa yokungahambi kahle okuhambisana nokuqhuma noma ukukhishwa kwe-cornea.
Kwezinye abantu abane-keratoconus, i-cornea iba mkhulu kakhulu kangangokuthi kunzima ukuthola i-lens eqinile ye-lens enmeable kusuka ekuphumeni emehlweni abo.
Laba bantu bahlukumezeka futhi bakhathazekile ngokomzwelo. Ngenxa yokuthi izibuko zamehlo azikwazi ukulungisa inkinga yabo yombono, futhi imiklamo yamanje yocingo yocingo ayinakakhululeka, ihola impilo okumelwe ikhokhele umbono wabo wehle. Uma izinketho ze-lens ziphelile, iziguli ze-keratoconus ngezinye izikhathi zishiywa ukhetho lwezokwelapha olubandakanya ukuhlinzeka futhi mhlawumbe ukufakelwa kwe-corneal.
Oxhumene nabo abancane
Muva nje, kusetshenzisiwe ulwazi olusha oluthambile lens contact olungahle lusize abantu abangabekezeli izinketho zendabuko yokuxhumana lendabuko. Amalensi amabili amasha amancane athulisiwe: NovaKone (Alden Optical) neKerasoft IC (iBausch & Lomb).
- I-NovaKone: I-NovaKone lens, eyethulwa ngonyaka ka-2011, inikeza ama-thicknesses amahlanu ayisiza ukusiphazamisa ukuphazamiseka kwe-corneal kanye ne-astigmatism engavamile. Yini eyenza lokhu kuyingqayizivele futhi kuphumelele ama-optometrists ukuba afane nalokho ukuthi indawo yangemuva lens iqukethe ijika elihlukile kunalokho okuyingxenye yendawo. I-curvature ephakathi nendawo yokuvivinya komzimba ingashintshwa ngokuzimela komunye nomunye ukuze kuthuthukiswe ukufaneleka kwe-lens, futhi amalensi angashintshwa ngokuzimela. Esikhathini esedlule, amalensi amancane atholakalayo ayedala isimo lapho i-cornea ayitholanga okwanele okwanele ekwenzeni i-cornea futhi yakha imvelo engenampilo kakhulu iso. Nge-NovaKone lens, ukushintshanisa izinyembezi ngaphansi kwe-lens kunikeza umoya omuhle ogeleza. Uma isiguli kanye ne-optometrist yakhe yanelisekile ngenduduzo nombono, i-lens iyalwe ephaketheni ezine ukuze ilensi ngayinye ishintshwe njalo ezinyangeni ezintathu.
- I-Kerasoft IC: I-Kerasoft IC lens, eyethulwa ngo-2012, yenziwe ngezinto ezibizwa ngokuthi i-Definitive enomthamo wamanzi aphakeme angamaphesenti angama-74 futhi iqukethe impahla e-silicone evumela ukuthi i-oksijeni ephakeme kakhulu igelekele ku-cornea. Ngenxa yalokho, ukuqina kwe-lens akudala imvelo empofu yezinto eziphilayo. Njenge-NovaKone lens, i-Kerasoft IC inejika eliphakathi kanye nejika lomzila elingashintshwa ngokuzimela. Ngaphezu kwalokho, udokotela angashintsha ngisho nemikhakha ethile yezingcingo zomzimba ukuze kuthuthukiswe indlela i-lens ifanele ngayo iso. I-lens yokuqala ekhethwe yi-optometrist isekelwe ekujuleni kolwandle kanye nohlobo lwe-keratoconus, kunokuba nje ukuvinjelwa kwe-cornea. Njenge-NovaKone lens, le lensi itholakale ne-eye pack-ezine esikhundleni ngasinye.
Okufanele Ukwazi
Nakuba ama-lens atholakale asetshenziswe esikhathini esedlule iziguli ze-keratoconus, ukuyekethisa kokufanelekile, umbono olungiswe kahle kakhulu, noma isikhathi sokugqoka nsuku zonke kwakudingeka kwenziwe. Ngokufika kwamalensi amasha, iziguli zakwa-keratoconus manje zinomunye, mhlawumbe ukhetho olukhululekile ukulungisa izinkinga zabo zombono ezihlobene ne-keratoconus.
Umthombo:
I-Brujic Mile, uMiller J. "I-Side of Comfortable Keratoconus," Ukubuyekezwa kwe-Cornea & Contact Lenses, umagazini omncane we-Review of Optometry, Pp 21-22, 25 Jan 2012.