Kunyangwe huwandu hwemagirazi ekuonana ehydrogel hwakakwira, hwagara husingagutsi panyaya yekubvumidzwa kweokisijeni. Kubva kuhydrogel kusvika kusilicone hydrogel, zvinogona kutaurwa kuti kwave nekufambira mberi kwakanaka. Saka, seziso rekuonana rakanakisa parizvino, chii chakanaka nezvesilicone hydrogel?
Silicone hydrogel chinhu chinonyungudutsa mvura zvakanyanya uye chinopinda neoxygen yakawanda. Kubva pakuona kwehutano hwemaziso, nyaya huru iyo malenzi ekuonana anofanira kugadzirisa ndeyekuvandudza kupinda neoxygen. Malenzi ekuonana ehydrogel anowanzo shandiswa anotsigira mvura iri mulenzi senzira yekutakura okisijeni kucornea, asi simba rekutakura mvura harina kukwana uye rinopera nyore nyore.Zvisinei, kuwedzerwa kwesilicon kunoita mutsauko mukuru.Mamonomeri eSiliconedzine chimiro chakasununguka uye simba shoma repakati pemamorekuru, uye kunyunguduka kweokisijeni mazviri kwakanyanya, izvo zvinoita kuti kupindira kweokisijeni mumasilicone hydrogels kuwedzere zvakapetwa kashanu pane kwemalenzi akajairwa.
Dambudziko rekuti kuyerera kweokisijeni kunoenderana nehuwandu hwemvura ragadziriswa,uye zvimwe zvakanakira zvakaunzwa.
Kana huwandu hwemvura mumalenzi akajairika hukawedzera, sezvo nguva yekupfeka ichiwedzera, mvura inopwa uye inozadzwazve nemisodzi, zvichikonzera kuoma kwemaziso ese ari maviri.
Zvisinei, silicone hydrogel ine huwandu hwakakwana hwemvura, uye mvura yacho inoramba yakasimba kunyangwe mushure mekupfeka, saka hazvisi nyore kuti iome, uye magirazi acho akapfava uye akasununguka uku achibvumira cornea kufema zvakasununguka.
Semagumo
Magirazi ekuonana akagadzirwa nesilicone hydrogel anogara aine mvura uye anofema, zvichivandudza nyaradzo uye zvichideredza kukuvara kwemaziso, mabhenefiti asingaenzaniswi nemagirazi ekuonana akajairika.Kunyange hazvo silicone hydrogel ichingogona kushandiswa kugadzira malenzi anoraswa kwenguva pfupi chete uye isingagone kushandiswa kune anoraswa pagore nehafu yegore, ichiri sarudzo yakanakisisa pane zvese zvigadzirwa.
Nguva yekutumira: Nyamavhuvhu-16-2022
