Kuze kube yamuva, izinkinga nombono zixazululwa kuphela ngosizo lwezibuko noma amalensi amancane noma ngezinqubo zokuhlinzwa. Kodwa namhlanje kunendlela ehle kakhulu kulezi zindlela - i-orthokeratology.
Iyini i-orthokratology?
I-Orthokeratology (OK-therapy) yindlela entsha kakhulu yokulungiswa kwesikhashana kwombono ngosizo lwama- lensi agqoke ubusuku. Le ndlela isebenza ngezimo ezinjalo zokuhlukumeza njengokungathi kuseduze futhi njenge-astigmatism.
Isimiso se-orthokeratology siseduze nokulungiswa kwe-laser, kuphela umahluko wokuthi umphumela uhlala isikhathi esithile (kuze kube amahora angu-24). Ngesikhathi sokulala, ama-lens akhethekile asemnyama ebusuku ahlinzeka ngcindezi encane yokuthuthukisa nokunikeza i-cornea ukuma okulungile (ukuvinjelwa), okugcina usuku, okuvumela ukuba ube nombono oseduze.
Kulesi simo, ngokungafani nokungaqondakali okungahambi kahle, akukho ukuxhumana okuqondile kwe-lens ne-epithelium ye-cornea (phakathi kwabo kukhona njalo izinyembezi). Ngakho-ke, i-cornea ayonakele (uma nje imithetho yokusetshenziswa kwama-lens igcinwa).
Ngaphandle kokwamukelwa okwesikhashana kwombono, ebusuku amalensi angamisa ukuthuthukiswa kwe-myopia ebuntwaneni nasebuntwaneni, okuyindlela yokuphela kweso.
Izinkomba zokusetshenziswa kwamalensi wezinsuku zokuthuthukisa umbono:
- ukusondela okuvela ku - diopters 0-5 kuya ku-6;
- i-astigmatism kuze ku - 1.75 diopters;
- ukungakwazi ukusebenzisa izibuko noma amalensi oxhumana nabo emini (isibonelo, ngenxa yezimo zomsebenzi - uthuli, umswakama ophezulu, izinguquko zokushisa);
- ukungahambisani kwama-lens othintana nabo abathintekayo (ukusabela okwenziwe okwehliswayo, isifo se-iso esomile, kunciphise ukuzwela okunamandla, njll);
- ukungenakwenzeka kwe-laser ukulungiswa kombono;
- i-myopia eqhubekayo yezingane.
Ukusetshenziswa kwamalensi wesikhathi sokuhlwa sokulungiswa kombono akunakulinganiselwe futhi kuvunyelwe iziguli ezineminyaka engu-6 ubudala.
Ungasebenzisa kanjani i-lens ebusuku?
Ama-lens asebusuku abuyisa umbono, agqoke imizuzu engu-10-15 ngaphambi kobusuku elele nge-pipette ekhethekile. Isikhathi sokuchayeka akufanele sibe ngaphansi kwamahora angu-8, ngaphandle kwalokho imiphumela izoba yimbi kakhulu. Ngemuva kokulala, ama-lens asusiwe futhi afakwe esitsheni esikhethekile esinesixazululo.
Njengawo wonke amalense, ama-lens webusuku adinga ukunamathela ngokuqinile emithethweni yokuhlanzeka nokugcina.
Izinzuzo nokungalungi kwamalensi webusuku
Mhlawumbe ukuphazamiseka okuwukuphela kwezilingo kungabizwa ngokuthi umphumela wabo wesikhashana nezindleko ezinkulu. Uma kungenjalo, kuyindlela enhle kulabo abanesizathu esithile abakwazi noma abafuni ukugqoka izibuko noma amalense emini. Ngesikhathi esifanayo, ama-lens ebusuku ahlinzeka ngombono ocacile ngaphandle kokuhlinzwa, izivocavoti zezokwelapha, njll.
Kufanele kuqaphele ukuthi ekuqaleni ukugqoka i-lens ukulungisa amehlo, kukhona umuzwa ongajabulisi womzimba wangaphandle esweni. Kodwa-ke, ngesikhathi sokulala, akukho ukunyakaza okukhazimulayo, ngakho-ke i-lens ayizwa. Ngaphezu kwalokho, emva kwezinsuku ezimbalwa iso liguquguquka, futhi ukukhathazeka kuyanyamalala ngisho nokuvula amehlo.
Ama-lens asebusuku ayenziwe ngezinto eziphathekayo ze-oksijeni, ezandisa ubumsulwa bawo. Ngaphezu kwalokho, ngenxa yama-lens ebusuku, amehlo e-cornea aphefumula phakathi nosuku (okuyinto ebudisi kakhulu uma ugqoke amalensi emini), ngakho-ke akukho ingozi ye-oxygen
Ama-lens ebusuku asusa ukulinganiselwa ngokomzimba okuhambisana nokugqoka izibuko nama-lens okuxhumana, kanye nezinkinga eziphathelene nengqondo (ikakhulukazi ezinganeni).
Ungakhetha kanjani amalense webusuku?
Ama-lens asebusuku wokulungiswa kombono awadayiswa ngama-optics, kodwa kuphela emitholampilo ekhethekile ye-ophthalmological.
Ukukhethwa kwama-lens kwenziwa ngudokotela okusekelwe emiphumeleni yokuxilongwa, futhi uchungechunge lwezilingo lwenziwa ukuze kuqinisekiswe ukufaneleka kwesinqumo.