ʻOiai ʻoi aku ka maikaʻi o ka helu o nā lens contact hydrogel, ʻaʻole maikaʻi lākou i nā ʻōlelo o ka oxygen permeability.Mai ka hydrogel a hiki i ka silicone hydrogel, hiki ke ʻōlelo ʻia ua loaʻa kahi lele qualitative.No laila, e like me ka maka hoʻopili maikaʻi loa i kēia manawa, he aha ka maikaʻi o ka silicone hydrogel?
ʻO Silicone hydrogel kahi mea polymer organik hydrophilic me ka permeability oxygen kiʻekiʻe.Mai ka hiʻohiʻona o ke olakino o ka maka, ʻo ka pilikia nui e pono e hoʻoponopono ʻia e nā lens contact e hoʻomaikaʻi i ka oxygen permeability.ʻO nā leka uila hydrogel maʻamau e hilinaʻi i ka wai i loko o ka lens ma ke ʻano he mea lawe e hāʻawi i ka oxygen i ka cornea, akā ua kaupalena ʻia ka hiki o ka lawe ʻana o ka wai a maʻalahi ke ea.Eia nō naʻe, ʻo ka hoʻohui ʻana o ke silika he ʻokoʻa nui.ʻO nā monomers silikoniLoaʻa i kahi hoʻolālā haʻahaʻa a me nā ikaika intermolecular haʻahaʻa, a ʻo ka solubility o ka oxygen i loko o lākou he kiʻekiʻe loa, e hana ai i ka oxygen permeability o silicone hydrogels e like me ʻelima mau manawa kiʻekiʻe ma mua o nā lens maʻamau.
Ua hoʻoholo ʻia ka pilikia e pili ana i ka oxygen permeability i ka ʻike wai,a ua hoʻokō ʻia nā pono ʻē aʻe.
Inā hoʻonui ʻia ka wai o nā lens maʻamau, e like me ka piʻi ʻana o ka manawa e hoʻohana ai, e hoʻoheheʻe ʻia ka wai a hoʻopiha ʻia me ka waimaka, e alakaʻi ana i ka maloʻo o nā maka ʻelua.
Eia nō naʻe, ʻo ka silicone hydrogel kahi ʻano wai kūpono, a paʻa mau ka wai ma hope o ke kau ʻana, no laila ʻaʻole maʻalahi ka hana ʻana i ka maloʻo, a palupalu a ʻoluʻolu hoʻi nā lens i ka wā e ʻae ai i ka cornea e hanu manuahi.
Ma ka hopena
ʻO nā leka uila i hana ʻia mai ka silicone hydrogel e hoʻomaʻemaʻe mau ʻia a hanu, e hoʻomaikaʻi i ka hōʻoluʻolu a me ka hōʻemi ʻana i ka pōʻino o nā maka, nā mea maikaʻi ʻole e like me nā lens contact maʻamau.ʻOiai hiki ke hoʻohana wale ʻia ka silicone hydrogel e hana i nā lens hoʻopau pōkole pōkole a ʻaʻole hiki ke hoʻopili ʻia i nā mea hoʻopau makahiki a me ka semi-makahiki, ʻo ia nō ke koho maikaʻi loa o nā huahana āpau.
Ka manawa hoʻouna: ʻAukake-16-2022
