Kubantu abangaboni kahle, ama-contact lens avame ukuba yingxenye ebalulekile yokuphila kwansuku zonke. Ngokusho kwe-American Academy of Ophthalmology, i-contact lens iyidiski yepulasitiki ecacile ebekwa phezu kweso ukuze kuthuthukiswe umbono womuntu. Ngokungafani nezibuko, la ma-lens amancane ahlala phezu kwefilimu yezinyembezi yeso, emboza futhi ivikele i-cornea yeso. Okungcono kakhulu, ama-contact lens angabonakala, asize abantu babone kangcono.
Amalensi okuxhumana angalungisa izinhlobo ezahlukene zezinkinga zokubona, okuhlanganisa ukubona eduze kanye nokubona kude (ngokusho kweNational Eye Institute). Kuye ngohlobo kanye nobunzima bokulahlekelwa umbono, kunezinhlobo eziningana zamalensi okuxhumana alungele wena. Amalensi okuxhumana athambile yiwona avame kakhulu, anikeza ukuguquguquka kanye nenduduzo ethandwa ngabagqoki abaningi bamalensi okuxhumana. Amalensi okuxhumana aqinile aqinile kunamalensi okuxhumana athambile futhi angaba nzima kwabanye abantu ukujwayela. Kodwa-ke, ukuqina kwawo empeleni kunganciphisa ukuqhubeka kwe-myopia, kulungise i-astigmatism, futhi kunikeze umbono ocacile (ngokusho kwe-Healthline).
Nakuba ama-contact lens engenza impilo ibe lula kubantu abangaboni kahle, adinga ukunakekelwa nokugcinwa ukuze asebenze kahle kakhulu. Uma ungalandeli iziqondiso zokuhlanza, ukugcina, nokushintsha ama-contact lens (nge-Cleveland Clinic), impilo yamehlo akho ingase ibe sengozini. Nakhu okudingeka ukwazi ngama-contact lens.
Ukugxumela echibini noma ukuhamba ogwini lolwandle ugqoke ama-contact lens kungase kubonakale kungenangozi, kodwa impilo yamehlo akho ingaba sengozini. Akuphephile ukugqoka ama-contact lens emehlweni akho ngenkathi ubhukuda, njengoba ama-lens amunca amanye amanzi angena emehlweni akho futhi angaqoqa amabhaktheriya, amagciwane, amakhemikhali, namagciwane ayingozi (nge-Healthline). Ukuchayeka amehlo isikhathi eside kulawa magciwane kungaholela ekuthelelekeni kwamehlo, ukuvuvukala, ukucasuka, ukoma, nezinye izinkinga zamehlo eziyingozi.
Kodwa kuthiwani uma ungakwazi ukususa oxhumana nabo? Abantu abaningi abane-presbyopia abakwazi ukubona ngaphandle kwama-contact lens noma izibuko, futhi izibuko azifanele ukubhukuda noma imidlalo yasemanzini. Amabala amanzi avela ngokushesha ezibukweni, asuka kalula noma antante.
Uma kufanele ugqoke ama-contact lens ngenkathi ubhukuda, i-Optometrist Network itusa ukugqoka izibuko ukuze uvikele ama-lens akho, uwasuse ngokushesha ngemva kokubhukuda, uhlanze ngokuphelele ama-contact lens ngemva kokuthintana namanzi, nokusebenzisa amaconsi amanzi ukuze uvimbele amehlo omile. Nakuba lawa macebiso engeke akuqinisekise ukuthi ngeke ube nezinkinga, anganciphisa ingozi yakho yokuthola ukutheleleka kwamehlo.
Ungabheka ukubaluleka okukhulu ekuhlanzweni nasekuhlanzweni ngokuphelele kwama-contact lens ngaphambi nangemva kokugqoka ngakunye. Kodwa-ke, ama-contact lens avame ukunganakwa nawo kufanele abe yingxenye ebalulekile yokunakekelwa kwamehlo akho. Uma ungazinakekeli izikhwama zakho zama-contact lens, amabhaktheriya ayingozi angakhula ngaphakathi futhi angene emehlweni akho (nge-Visionworks).
I-American Optometric Association (AOA) itusa ukuhlanza ama-contact lens ngemva kokusetshenziswa ngakunye, ukuwavula nokuwomisa uma engasetshenziswa, kanye nokushintsha ama-contact lens njalo ezinyangeni ezintathu. Ukulandela lezi zinyathelo kuzosiza ukugcina amehlo akho ephilile ngokuqinisekisa ukuthi ama-contact lens akho ahlanziwe futhi agcinwe esitsheni esihlanzekile nesisha ngemva kokusetshenziswa ngakunye.
I-Visionworks ikutshela nokuthi ungawahlanza kanjani kahle ama-contact lens cases. Okokuqala, lahla isixazululo sokuxhumana esisetshenzisiwe, esingase sibe namagciwane ayingozi kanye nezinto ezicasulayo. Bese ugeza izandla zakho ukuze ususe noma yimaphi amagciwane esikhumbeni sakho angangena ebhokisini lokuxhumana. Bese ufaka uketshezi lokuxhumana oluhlanzekile ebhokisini bese uhambisa iminwe yakho phezu kwendawo yokugcina kanye nesembozo ukuze ukhulule futhi ususe noma yimaphi ama-deposit. Lithulule bese ugeza umzimba ngesisombululo esiningi kuze kube yilapho wonke ama-deposit esephelile. Ekugcineni, beka i-cases ibheke phansi, uyivumele yome ngokuphelele emoyeni, bese uyivala kabusha uma yomile.
Kungaba yisilingo ukuthenga ama-contact lens okuhlobisa ukuze uhlobise noma ube nomphumela omangalisayo, kodwa uma ungenayo incwadi kadokotela, ungagcina ukhokhele imiphumela ebizayo nebuhlungu. I-US Food & Drug Administration (FDA) ixwayisa ngokuthenga izinto ezithengiswa ngaphandle kwemithi ukuze kuvinjelwe ukulimala kwamehlo okungenzeka uma ugqoka amalensi angalingani kahle namehlo akho. I-US Food & Drug Administration (FDA) ixwayisa ngokuthenga izinto ezithengiswa ngaphandle kwemithi ukuze kuvinjelwe ukulimala kwamehlo okungenzeka uma ugqoka amalensi angalingani kahle namehlo akho.I-US Food and Drug Administration (FDA) ixwayisa ngokuthenga amalensi okuxhumana athengiswa ngaphandle kwemithi ukuze kuvinjelwe ukulimala kwamehlo okungenzeka uma ugqoka amalensi angalingani namehlo akho.I-US Food and Drug Administration (FDA) ixwayisa ngokuthenga amalensi okuxhumana athengiswa ngaphandle kwemithi ukuze kuvinjelwe ukulimala kwamehlo okungenzeka uma ugqoke amalensi angalingani namehlo akho.
Isibonelo, uma la malensi okuhlobisa engalingani noma engalingani namehlo akho, ungase ube nokuklwebheka kwe-cornea, izifo ze-cornea, i-conjunctivitis, ukulahlekelwa umbono, ngisho nobumpumputhe. Ngaphezu kwalokho, amalensi okuxhumana ahlotshisiwe avame ukungabi nemiyalelo yokuwahlanza noma yokuwagqoka, okungadala nezinkinga zokubona.
I-FDA iphinde ithi akuvumelekile ukuthengisa amalensi okuxhumana ahlotshisiwe ngaphandle kwencwadi kadokotela. Amalensi awafakiwe esigabeni semikhiqizo yezimonyo noma eminye imikhiqizo engathengiswa ngaphandle kwencwadi kadokotela. Noma yimaphi amalensi okuxhumana, ngisho nalawo angalungisi umbono, adinga incwadi kadokotela futhi angathengiswa kuphela ngabathengisi abagunyaziwe.
Ngokusho kwesihloko se-American Optometric Association, uMongameli we-AOA uRobert S. Layman, u-OD wabelane, “Kubaluleke kakhulu ukuthi iziguli zibonane nodokotela wamehlo futhi zigqoke amalensi okuxhumana kuphela, noma ngabe kukhona noma cha ukulungiswa kombono.” Kumelwe ugqoke amalensi anombala, qiniseka ukuthi ubona udokotela wamehlo futhi uthole incwadi kadokotela.
Nakuba kungase kushaqise ukubona ukuthi ilensi yakho yokuxhumana ngandlela thile isuke yaya ngemuva kweso lakho, empeleni ayinamathele lapho. Kodwa-ke, ngemva kokuhlikihla, ukushaya noma ukuthinta iso ngengozi, ilensi yokuxhumana ingasuka endaweni yayo. Ilensi ivame ukuya phezulu kweso, ngaphansi kwejwabu leso, ikushiye uzibuza ukuthi iye kuphi futhi uzama ngamandla onke ukuyikhipha.
Izindaba ezinhle ukuthi ilensi yokuxhumana ayikwazi ukunamathela ngemuva kweso (nge-All About Vision). Ungqimba lwangaphakathi olumanzi ngaphansi kwejwabu, olubizwa ngokuthi i-conjunctiva, empeleni luyagoqa phezu kwejwabu, lugoqeke emuva, futhi lumboze ungqimba lwangaphandle lwebhola leso. Engxoxweni ne-Self, umongameli okhethiwe we-AOA u-Andrea Tau, OD uchaza, “Ulwelwesi [lwe-conjunctival] lugijima phezu komhlophe weso kanye naphezulu nangaphansi kwejwabu, ludale isikhwama esizungeze umjikelezo.” ngemuva kweso, kufaka phakathi amalensi okuxhumana acwebezelayo.
Nokho, akudingeki wesabe uma amehlo akho elahlekelwa ukuxhumana ngokuzumayo. Ungayisusa ngokusebenzisa amaconsi ambalwa okugcina umswakama bese uhlikihla kancane ingxenye ephezulu yejwabu leso lakho kuze kube yilapho ilensi iwela bese uyisusa (ngokusho kwe-All About Vision).
Uphelelwa yisisombululo sokuxhumana futhi awunaso isikhathi sokugijimela esitolo? Ungacabangi ngisho nokusebenzisa kabusha i-case sanitizer. Uma ama-contact lens akho esefakwe esixazululweni, angaba namagciwane abangela ukutheleleka kanye nezinto ezicasulayo eziyingozi ezizongcolisa ama-lens akho kuphela uma uzama ukusebenzisa isisombululo futhi (nge-Visionworks).
I-FDA iphinde ixwayise ngokuthi "ungayeki" isixazululo esivele sisetshenziswa endabeni yakho. Ngisho noma ungeza isixazululo esisha oketshezini lwakho olusetshenzisiwe, isixazululo ngeke sibe yinyumba ukuze kuhlanzwe kahle amalensi okuxhumana. Uma ungenaso isixazululo esanele sokuhlanza nokugcina amalensi akho ngokuphephile, ngesikhathi esizayo lapho unquma ukugqoka amalensi okuxhumana, kungcono ukuwalahla bese uthenga amalensi amasha.
I-AOA yengeza ngokuthi kubalulekile ukulandela imiyalelo yokunakekelwa enikezwa umenzi wesisombululo se-contact lens. Uma kunconywa ukuthi ugcine ama-contact lens akho esisombululo isikhathi esilinganiselwe kuphela, kufanele uwavale ngokwalolu hlelo, noma ngabe awuhlosile ukugqoka ama-contact lens. Ngokuvamile, ama-contact lens akho agcinwa esixazululweni esifanayo izinsuku ezingu-30. Ngemva kwalokho, kuzodingeka uwalahle lawo ma-lens ukuze uthole amasha.
Esinye isiphetho esivamile abantu abaningi abagqoka ama-contact lens abasenzayo ukuthi amanzi ayindlela ephephile yokugcina ama-contact lens uma kungekho sixazululo. Kodwa-ke, ukusebenzisa amanzi, ikakhulukazi amanzi ompompi, ukuhlanza noma ukugcina ama-contact lens akulungile. Amanzi angaqukatha izinto ezihlukahlukene ezingcolisayo, amabhaktheriya, kanye nesikhunta ezingalimaza impilo yamehlo akho (nge-All About Vision).
Ikakhulukazi, i-microorganism ebizwa ngokuthi i-Acanthamoeba, evame ukutholakala emanzini ompompi, inganamathela kalula ebusweni bama-contact lens futhi ithelele amehlo uma egqokiwe (ngokusho kwe-US Environmental Protection Agency). Ukutheleleka kwamehlo okubandakanya i-Acanthamoeba emanzini ompompi kungabangela izimpawu ezibuhlungu, okuhlanganisa ukungakhululeki okukhulu kwamehlo, ukuzwa komzimba wangaphandle ngaphakathi kweso, kanye namabala amhlophe azungeze umphetho wangaphandle weso. Nakuba izimpawu zingase zithathe izinsuku ezimbalwa kuya ezinyangeni, iso alipholi ngokuphelele, ngisho nangokwelashwa.
Noma ngabe kunamanzi ompompi amahle endaweni yakini, kungcono ukuphepha kunokuzisola. Sebenzisa amalensi okuxhumana kuphela ukugcina amalensi noma ukukhetha amalensi amasha.
Abantu abaningi abagqoka amalensi okuxhumana bandisa isikhathi sabo sokugqoka ngethemba lokonga imali noma ukugwema ukuya kudokotela wamehlo futhi. Nakuba kwenzeka ngengozi, ukungalandeli isimiso sokushintshana nemithi kadokotela kungaba yinto engafanele futhi kwandise ingozi yakho yokutheleleka kwamehlo nezinye izinkinga zempilo yamehlo (nge-Optometrist Network).
Njengoba i-Optometrist Network ichaza, ukugqoka ama-contact lens isikhathi eside kakhulu noma ngaphezulu kwesikhathi esinconywayo sokugqoka kunganciphisa ukugeleza komoya-mpilo ku-cornea nemithambo yegazi esweni. Imiphumela isukela ezimpawini ezincane ezifana namehlo omile, ukucasuka, ukungakhululeki kwelensi, namehlo abomvu kuya ezinkingeni ezinkulu njengezilonda ze-cornea, izifo, izibazi ze-cornea, kanye nokulahlekelwa umbono.
Ucwaningo olushicilelwe kumagazini i-Optometry and Vision Science luthole ukuthi ukugqoka ama-contact lens ngokweqile nsuku zonke kungaholela ekuqongeleleni kwamaprotheni kuma-lens, okungabangela ukucasuka, ukuncipha kokubona, ukwandiswa kwamaqhubu amancane ezinkopheni ezibizwa ngokuthi i-conjunctival papillae, kanye nengozi yokutheleleka. Ukuze ugweme lezi zinkinga zamehlo, landela njalo isimiso sokugqoka ama-contact lens bese uwashintsha ngezikhathi ezinconywayo.
Udokotela wakho wamehlo uzohlala encoma ukuthi ugeze izandla zakho ngaphambi kokugqoka ama-contact lens. Kodwa uhlobo lwensipho oyisebenzisayo ukugeza izandla zakho lungenza umehluko omkhulu uma kukhulunywa ngokunakekelwa kwama-lens kanye nempilo yamehlo. Izinhlobo eziningi zensipho zingase zibe namakhemikhali, amafutha abalulekile, noma ama-moisturizer angangena kuma-contact lens futhi abangele ukucasuka kwamehlo uma engahlanzwa kahle (ngokusho kweNational Keratoconus Foundation). I-Residue ingakha nefilimu kuma-contact lens, okwenza kube nokufiphala kombono.
I-Optometrist Network itusa ukuthi ugeze izandla zakho ngensipho elwa namagciwane engakhiqizi phunga ngaphambi kokufaka noma ukukhipha amalensi akho okuxhumana. Kodwa-ke, i-American Academy of Ophthalmology iphawula ukuthi insipho yokuthambisa iphephile ukuyisebenzisa uma nje uhlanza insipho kahle ezandleni zakho ngaphambi kwamalensi okuxhumana. Uma unamehlo azwela kakhulu, ungathola nama-sanitizer ezandla emakethe aklanyelwe ngqo ukusebenza namalensi okuxhumana.
Ukufaka izimonyo ngenkathi ugqoka ama-contact lens kungaba nzima futhi kungathatha umkhuba othile ukuvimbela umkhiqizo ukuthi ungangeni emehlweni akho nasema-contact lens. Ezinye izimonyo zingashiya ifilimu noma insalela kuma-contact lens engabangela ukucasuka uma ifakwa ngaphansi kwelensi. Izimonyo zamehlo, okuhlanganisa isithunzi samehlo, i-eyeliner, kanye ne-mascara, kungaba yinkinga ikakhulukazi kwabagqoka ama-contact lens ngoba angangena kalula emehlweni noma aqhekeke (nge-CooperVision).
I-Johns Hopkins Medicine ithi ukugqoka izimonyo ngama-contact lens kungabangela ukucasuka kwamehlo, ukoma, ukungezwani komzimba, izifo zamehlo, ngisho nokulimala uma ungaqaphile. Indlela engcono kakhulu yokugwema lezi zimpawu ukugqoka ama-contact lens ngaphansi kwezimonyo njalo, sebenzisa uhlobo oluthembekile lwezimonyo ezingezona ezibangela ukungezwani komzimba, ugweme ukwabelana ngezimonyo, futhi ugweme izithunzi zamehlo ezikhazimulayo. I-L'Oreal Paris iphinde ituse i-eyeliner ekhanyayo, i-mascara engangeni manzi eyenzelwe amehlo azwelayo, kanye nesithunzi samehlo esiwuketshezi ukunciphisa ukubola kwamehlo.
Akuzona zonke izixazululo zamalensi okuxhumana ezifanayo. Lezi zinhlayiya ezihlanzekile zingasebenzisa izithako ezahlukahlukene ukubulala amagciwane nokuhlanza amalensi, noma ukunikeza induduzo eyengeziwe kulabo abaswele. Isibonelo, ezinye izinhlobo zamalensi okuxhumana ongazithola emakethe zifaka amalensi okuxhumana anenjongo eningi, amalensi okuxhumana amehlo awomile, amalensi okuxhumana e-hydrogen peroxide, kanye nezinhlelo zokunakekela amalensi aqinile ngokuphelele (nge-Healthline).
Abantu abanamehlo azwelayo noma labo abagqoka izinhlobo ezithile zama-contact lens bazothola ukuthi amanye ama-contact lens asebenza kangcono kunezinye. Uma ufuna ikhambi elingabizi lokubulala amagciwane nokuthambisa amalensi akho, ikhambi elinokusetshenziswa okuningi lingase lilungele wena. Kubantu abanamehlo azwelayo noma abangezwani nokudla, ungathenga ikhambi elinosawoti omncane ukuze ugeze amalensi okuxhumana ngaphambi nangemva kokuhlanza ukuze uthole induduzo ephelele (ngokusho kwe-Medical News Today).
Isixazululo se-hydrogen peroxide singenye indlela uma ikhambi elisetshenziswa yonke into libangela ukusabela noma ukungakhululeki. Kodwa-ke, kufanele usebenzise ikhava ekhethekile eza nekhambi, eliguqula i-hydrogen peroxide ibe usawoti ongcolile zingakapheli amahora ambalwa (kuvunyelwe yi-FDA). Uma uzama ukufaka amalensi emuva ngaphambi kokuba i-hydrogen peroxide ingasebenzi, amehlo akho azosha futhi i-cornea yakho ingase yonakale.
Uma usuthole umuthi wakho we-contact lens, ungase uzizwe usukulungele ukuphila. Kodwa-ke, abagqoka ama-contact lens kufanele bahlolwe minyaka yonke ukuze babone ukuthi amehlo abo ashintshile yini nokuthi ama-contact lens ayisinqumo esingcono kakhulu sohlobo lwabo lokulahlekelwa umbono. Ukuhlolwa kwamehlo okuphelele kusiza futhi ekuboneni izifo zamehlo nezinye izinkinga ezingaholela ekwelashweni kusenesikhathi kanye nokuthuthukiswa kombono (nge-CDC).
Ngokusho kwe-VSP Vision Care, ukuhlolwa kwelensi yokuxhumana empeleni kuhlukile ekuhlolweni kwamehlo okuvamile. Ukuhlolwa kwamehlo okuvamile kuhlanganisa ukuhlola umbono womuntu nokufuna izimpawu zezinkinga ezingaba khona. Kodwa-ke, ukuhlolwa kwelensi yokuxhumana kuhlanganisa uhlobo oluhlukile lokuhlolwa ukuze kubonakale ukuthi umbono wakho udinga ukucaca kangakanani ngamalensi okuxhumana. Udokotela uzolinganisa nobuso beso lakho ukuze akunike amalensi okuxhumana anosayizi nesimo esifanele. Uzothola nethuba lokuxoxa ngezinketho zelensi yokuxhumana futhi unqume ukuthi yiluphi uhlobo olufanele izidingo zakho.
Nakuba kungase kushaqise udokotela wamehlo ukusho lokhu, kubalulekile ukwazi ukuthi amathe akuyona indlela ehlanzekile noma ephephile yokumanzisa kabusha amalensi okuxhumana. Ungawabambi amalensi okuxhumana emlonyeni wakho ukuze uwamanzise kabusha lapho omile, ecasula amehlo akho, noma ewa. Umlomo ugcwele amagciwane namanye amagciwane angabangela ukutheleleka kwamehlo nezinye izinkinga zamehlo (nge-Yahoo News). Kungcono ukulahla amalensi anephutha bese uqala ngamabili amasha.
Ukutheleleka kwamehlo okuvame ukubonakala lapho amathe esetshenziswa ukumanzisa amalensi yi-keratitis, okuwukuvuvukala kwe-cornea okubangelwa amagciwane, isikhunta, amagciwane, noma amagciwane angena esweni (ngokusho kwe-Mayo Clinic). Izimpawu ze-keratitis zingase zihlanganise amehlo abomvu nabuhlungu, amanzi noma ukuphuma kwamanzi emehlweni, ukubona okufiphele, kanye nokuzwela okukhulu ekukhanyeni. Uma ubuzama ukumanzisa noma ukuhlanza amalensi okuxhumana ngomlomo futhi uhlangabezana nalezi zimpawu, sekuyisikhathi sokuhlela i-aphoyintimenti nodokotela wakho wamehlo.
Ngisho noma ucabanga ukuthi unemithi efanayo neyomngane noma ilungu lomndeni, kunomehluko ngobukhulu bamehlo kanye nesimo sawo, ngakho ukwabelana ngamalensi okuxhumana akuwona umqondo omuhle. Ingasaphathwa eyokuthi, ukugqoka amalensi okuxhumana womunye umuntu emehlweni akho kungakuchaya kuzo zonke izinhlobo zamagciwane, amagciwane, kanye namagciwane angakwenza ugule (ngokusho kukaBausch + Lomb).
Futhi, ukugqoka amalensi okuxhumana angalingani namehlo akho kungandisa ingozi yakho yokudabuka kwe-cornea noma izilonda kanye nokutheleleka kwamehlo (nge-WUSF Public Media). Uma uqhubeka nokugqoka amalensi okuxhumana angafanele, ungase ube nesifo sokungabekezelelani kwamalensi okuxhumana (i-CLI), okusho ukuthi ngeke usakwazi ukugqoka amalensi okuxhumana ngaphandle kobuhlungu noma ukungakhululeki, noma ngabe amalensi ozama ukuwafaka anqunyelwe wena (ngokusho kwe-Laser Eye Institute). Amehlo akho azogcina enqabe ukugqoka amalensi okuxhumana futhi awabone njengezinto zangaphandle emehlweni akho.
Uma ucelwa ukuthi wabelane ngamalensi okuxhumana (kufaka phakathi amalensi okuxhumana okuhlobisa), kufanele uhlale ugwema ukwenza kanjalo ukuze uvimbele ukulimala kwamehlo kanye nokungabekezelelani kwamalensi okuxhumana esikhathini esizayo.
I-CDC ibika ukuthi ukuziphatha okuvame kakhulu okuhlobene nokunakekelwa kwelensi yokuxhumana ukulala nazo. Kungakhathaliseki ukuthi ukhathele kangakanani, kungcono ukususa amalensi akho okuxhumana ngaphambi kokusebenzisa utshani. Ukulala ngamalensi okuxhumana kungandisa amathuba akho okuthola izifo zamehlo kanye nezinye izimpawu zezinkinga—ngisho namalensi okuxhumana agugile isikhathi eside. Kungakhathaliseki ukuthi ugqoka hlobo luni lwamalensi okuxhumana, amalensi anciphisa ukunikezwa komoya-mpilo obalulekile emehlweni akho, okungathinta impilo yamehlo akho kanye nokubona (ngokusho kwe-Sleep Foundation).
Ngokusho kweCleveland Clinic, amalensi okuxhumana angabangela ukoma, ukubomvu, ukucasuka, kanye nomonakalo lapho ilensi isuswa ngenkathi iboshwe ku-cornea. Ukulala ngamalensi okuxhumana kungaholela nasekuthelelekeni kwamehlo kanye nomonakalo wamehlo unomphela, okuhlanganisa i-keratitis, ukuvuvukala kwe-cornea kanye nokutheleleka kwe-fungal, kusho i-Sleep Foundation.