Cov tsom iav uas muaj xim silicone hydrogel, tseem hu ua cov tsom iav silicone hydrogel, yog ib hom tsom iav uas ua los ntawm cov khoom siv silicone hydrogel. Hauv lub neej niaj hnub no, cov tsom iav uas muaj xim silicone hydrogel tau dhau los ua hom tsom iav nrov heev vim lawv muaj ntau yam zoo. Hauv tsab xov xwm no, peb yuav tham txog qhov tseem ceeb ntawm cov tsom iav uas muaj xim silicone hydrogel.

Ua ntej, cov xim sib txuas uas muaj silicone hydrogel muaj cov pa oxygen permeability zoo heev. Cov pa oxygen permeability txhais tau hais tias lub peev xwm ntawm cov iav sib txuas kom tso cai rau cov pa oxygen txaus hla lub cornea kom ncav cuag lub qhov muag. Cov xim sib txuas uas muaj silicone hydrogel muaj cov pa oxygen permeability zoo dua li cov iav sib txuas ib txwm muaj, uas txhais tau tias lawv tuaj yeem ua rau lub qhov muag xis nyob dua thiab tiv thaiv kab mob qhov muag qhuav thiab lwm yam kab mob qhov muag.

Qhov thib ob, cov xim sib txuas ntawm cov iav silicone hydrogel muaj qhov ruaj khov thiab ruaj khov dua. Vim yog qhov yooj ywm thiab muaj peev xwm tiv thaiv kev laus ntawm cov khoom siv silicone hydrogel, cov xim sib txuas ntawm cov iav silicone hydrogel muaj zog dua thiab siv tau ntev dua li cov iav sib txuas ib txwm muaj.

Tsis tas li ntawd xwb, cov xim ntawm cov iav silicone hydrogel tuaj yeem ua rau pom tseeb dua. Cov khoom siv silicone hydrogel tuaj yeem sib xyaw zoo dua nrog qhov chaw ntawm lub qhov muag, ua rau cov xim ntawm cov iav silicone hydrogel zoo li ntuj dua thiab txo qhov kev xav ntawm cov khoom txawv teb chaws hauv lub qhov muag.

Xaus lus, cov iav sib txuas xim silicone hydrogel yog cov iav sib txuas ua haujlwm tau zoo, xis nyob, thiab ruaj khov. Lawv muaj cov pa oxygen zoo, uas tuaj yeem tiv thaiv qhov muag qhuav thiab lwm yam kab mob qhov muag; muaj lub neej ua haujlwm ntev dua; thiab muab cov tsos ntuj dua. Txawm li cas los xij, peb kuj yuav tsum tau them sai sai rau cov txheej txheem thiab kev ceev faj ntawm kev siv cov iav sib txuas xim silicone hydrogel kom ntseeg tau tias peb lub qhov muag noj qab haus huv thiab muaj kev nyab xeeb.