I-Plexiglass ikwasetyenziswa ngokumangalisayo kwezamayeza, oko kukwenza ii-corneas ezenziweyo.Ukuba i-cornea ebonakalayo yeliso lomntu igutyungelwe nge-opaque material, ukukhanya akukwazi ukungena kwiso.Obu bubumfama obubangelwa yi-total corneal leukoplakia, kwaye isifo asikwazi ukunyangwa ngamachiza.
Ke ngoko, izazinzulu zonyango zicinga ukutshintsha i-cornea ngamabala amhlophe nge-cornea eyenziweyo.I-cornea ebizwa ngokuba yi-artificial cornea kukusebenzisa into ecacileyo ukwenza ikholamu yesibuko kunye nobubanzi beemilimitha ezimbalwa kuphela, emva koko ubhobhoze umngxuma omncinci kwi-cornea yeliso lomntu, ulungise ikholamu yesipili kwi-cornea, kunye nokukhanya. ingena iliso ngekholamu yesipili.Iliso lomntu liyakubona ukukhanya kwakhona.
Kwangowe-1771, i-ophthalmologist yasebenzisa iglasi yamehlo ukwenza ikholamu yesipili kwaye yafakela i-cornea, kodwa ayizange iphumelele.Kamva, ukusetyenziswa kwekristale endaweni yeglasi ye-optical ayiphumelelanga kuphela emva kwesiqingatha sonyaka.KwiMfazwe yesiBini yeHlabathi, xa ezinye iinqwelomoya zantlitheka, isigqubuthelo se-cockpit esenziwe nge-plexiglass kwinqwelomoya saqhushumba, kwaye amehlo omqhubi wenqwelo-moya afakwe kwiingceba zeplexiglass.Emva kweminyaka emininzi, nangona ezi ziqwenga zingakhutshwanga, azizange zibangele ukudumba okanye ezinye izinto ezimbi emehlweni abantu.Esi siganeko senzeka ukubonisa ukuba i-plexiglass kunye nezicubu zomntu ziyahambelana kakuhle.Kwangaxeshanye, iphinde yaphefumlela iingcali zamehlo ukuba zenze ii-corneas ezenziweyo ngeplexiglass.Inokuhanjiswa kokukhanya okulungileyo, iipropathi ezizinzileyo zeekhemikhali, ayinayo ityhefu emzimbeni womntu, kulula ukuyiqhuba ibe yimo efunekayo, kwaye inokuhambelana namehlo abantu ixesha elide.Iicornea ezenziweyo ezenziwe ngeplexiglass ziqhele ukusetyenziswa ekliniki.
Ixesha lokuposa: Apr-01-2017