Ngakhale kuti kuchuluka kwa magalasi olumikizirana a hydrogel ndi kwakukulu, nthawi zonse akhala osakwanira pankhani ya kulola mpweya kulowa. Kuchokera ku hydrogel kupita ku silicone hydrogel, tinganene kuti kusintha kwakukulu kwachitika. Ndiye, monga diso labwino kwambiri lolumikizirana pakadali pano, kodi ndi chiyani chabwino chokhudza silicone hydrogel?
Silicone hydrogel ndi chinthu cha organic polymer chomwe chimagwira ntchito bwino kwambiri komanso chimakhala ndi mpweya wokwanira wambiri. Malinga ndi thanzi la maso, nkhani yofunika kwambiri yomwe ma contact lens ayenera kuthana nayo ndikuwongolera mpweya wokwanira. Ma contact lens wamba a hydrogel amadalira madzi omwe ali mu lens ngati chonyamulira kuti apereke mpweya ku cornea, koma mphamvu yonyamulira madzi ndi yochepa kwambiri ndipo imaphwa mosavuta.Komabe, kuwonjezera kwa silicon kumabweretsa kusiyana kwakukulu.Ma monomers a silikoniAli ndi kapangidwe kosasunthika komanso mphamvu zochepa pakati pa mamolekyulu, ndipo kusungunuka kwa mpweya m'malensiwa ndi kwakukulu kwambiri, zomwe zimapangitsa kuti mpweya wa silicone hydrogels ulowerere nthawi zisanu kuposa wa magalasi wamba.
Vuto lakuti mpweya wokwanira umadalira kuchuluka kwa madzi lathetsedwa,ndipo maubwino ena abwera.
Ngati madzi a magalasi wamba akuwonjezeka, nthawi yogwiritsidwa ntchito ikawonjezeka, madziwo amasanduka nthunzi ndipo amadzazidwanso ndi misozi, zomwe zimapangitsa kuti maso onse awiri akhale ouma.
Komabe, silicone hydrogel ili ndi madzi okwanira, ndipo madziwo amakhalabe olimba ngakhale atagwiritsidwa ntchito, kotero sizophweka kupanga kuuma, ndipo magalasiwo ndi ofewa komanso omasuka pamene akulola cornea kupuma momasuka.
Zotsatira zake
Ma lens olumikizana opangidwa ndi silicone hydrogel nthawi zonse amakhala ndi madzi okwanira komanso opumira, zomwe zimapangitsa kuti maso azikhala omasuka komanso amachepetsa kuwonongeka kwa maso, zabwino zomwe sizingafanane ndi ma lens olumikizana nthawi zonse.Ngakhale kuti silicone hydrogel ingagwiritsidwe ntchito popanga magalasi otayidwa nthawi yochepa okha ndipo singagwiritsidwe ntchito pa magalasi otayidwa pachaka ndi theka la chaka, ikadali chisankho chabwino kwambiri pa zinthu zonse.
Nthawi yotumizira: Ogasiti-16-2022
