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Magalasi olumikizirana amawerengedwa ngati zida zachipatala, zomwe zakhala zikulamulidwa ndi U.S. Food and Drug Administration (FDA).
Anthu ambiri amasankha magalasi olumikizirana ndi magalasi chifukwa ali ndi zabwino zambiri - amatha kusintha kuchuluka kwa kuwala komwe kumalowa m'maso mwanu kuti muwone bwino, amakhala molunjika m'maso mwanu, chifukwa chowonera sikutsekerezedwa, palibe mantha ophulika, ndipo ndi zina zotero.
Komabe, magalasi olumikizirana ali ndi gawo lawo la zovuta zina, zomwe tilembere m'nkhaniyi.
Zotsatira zoyipa za magalasi olumikizirana
1. Maso owuma
Omwe amavala magalasi ambiri amakhala ndi mavuto amaso owuma. Kuvala magalasi ochezera kumachepetsa kuchuluka kwa misozi komanso kumachepetsa kuchuluka kwa mpweya ku cornea. Izi zimabweretsa kuyabwa kapena kupweteka, komanso kukhumudwitsa khungu ndi khungu [1] .
2. Abrasion kumva kuwawa
Kutsekemera kwa Corneal kumachitika pamene ma lens ophatikizana amakanda cornea yanu, ngati sanakonzekere bwino kapena maso anu akauma kwambiri. Komanso, kugona ndi magalasi olumikizirana kumawonjezera ngozi ya kumva kuwawa kwa diso. Magalasiwo amatchera dothi komanso mabakiteriya ndipo amapakidwa ndi cornea, yomwe imatha kubweretsa matenda amaso [1] .
3. Imalepheretsa mpweya kuyenda m'maso
Kornea ilibe mitsempha yamagazi, kupatula m'mbali mwake. Popanda mpweya wokwanira, kagayidwe kameneka ka cornea kamapanikizika ndipo lactic acid imakhazikika ndikupanga katundu wosmotic, kukoka madzi kulowa mu cornea mwachangu kuposa momwe angachotsere, zomwe zimapangitsa kutupa kapena edema [1] .
Kuchuluka kwa mpweya womwe umapezeka pansi pa mandala kumasiyanasiyana ndi mandala komanso makulidwe.
4. Chilonda cham'mimba
Vuto lina la magalasi olumikizirana ndi zilonda zam'mimba, zomwe zimachitika chifukwa cha kuipitsidwa kwa bakiteriya pamtunda ndikamagwiritsa ntchito magalasi ofewa ndipo amatha kuchulukana mwachangu. Izi zimapanga bakiteriya biofilm yomwe imatumiza opatsirana ku cornea yopanikizika [1] .
5. Diso lofiira
Diso lofiira limachitika mukavala magalasi azolumikizana kwa nthawi yayitali, makamaka usiku wonse. Izi zimapereka chinyezi komanso chinyezi malo oti tizilombo ting'onoting'ono titha kuswana. Zina mwazomwe zimayambitsa diso lofiira zimaphatikizapo magalasi opunduka, ma lens omwe amatsogolera kukhumudwa, kapena magalasi osakwanira [1] .
6. Chiberekero cha chiwindi
Chiberekero cha keratitis ndi kukwiya kwa mtunda wakunja kwa cornea, womwe umayambitsa chifukwa cha njira zothetsera mandala, chifuwa, matenda, komanso kukwiya kwamakina [1] .
7. Corneal akamaumba
Kuumba ndikusintha kwa diso chifukwa chovala mandala olumikizirana. Zimachitika makamaka chifukwa chakuchepa kwa mpweya komanso mapangidwe a thovu pansi pamagalasi olumikizana ndi mavuto atachepetsedwa, monga momwe amadziwira akathamanga kumtunda [1] .
8. Amalowerera
Amalowa mkati mooneka ngati opanda kanthu, otuwa m'katikati mwa dera lam'maso lomwe limachitika chifukwa chovala magalasi azolumikizana kwakanthawi, magalasi oyenera olumikizana bwino, kuvala magalasi osiyanasiyana, ndi maulamuliro osamalira ma lens [1] .
9. Giant papillary conjunctivitis
Giant papillary conjunctivitis ndimavuto omwe amapezeka pakati pa omwe amavala magalasi ofewa, makamaka omwe amawavala kwakanthawi. Zizindikirozo ndizowonjezera kupanga kwa mucous komanso kusawona bwino [1] .
Onani Zolemba Pazolemba- [1]Lumikizanani ndi Lens Gwiritsani Ntchito M'mikhalidwe Yovuta: Mapulogalamu mu Gulu Lankhondo. Gulu Logwira Ntchito ku National Research Council (US) pa Lens Lens Logwiritsa Ntchito Pazovuta. Washington (DC): National Academies Press (US) 1990.
