Kodi Zingakhale Zosagwirizana ndi Othandizira Osavuta Nthawi Zonse?
Mamiliyoni a anthu amasangalala ndi lens yothandizira bwino tsiku ndi tsiku. Komabe, makina opangidwira amadzimadzi sali oopsa. Zoopsa, matenda opweteka maso amachititsa kuti masomphenya awonongeke kapena khungu lingathe kuchitika. Ngakhale kuchuluka kwa matendawa ndi kochepa, zochitika zimakhala zofunikira kwambiri kuti madokotala azichenjeza odwala za zoopsa zomwe zimagwiridwa ndi kuvala kwa lens, ndikupatseni mankhwala ena omwe angakhale othandiza kwa odwala awo.
Chifukwa cha ngozi zomwe zimagwiridwa ndi kuvala kwa lens, kujambulira kwa lens ndi chitukuko kwazomwe zakhala zikuchitika kale popanga ma lens omwe amalola mpweya wapamwamba kuti uwoloke kupita ku diso. Ochita kafukufuku amaganiza kuti ngati pangapangidwe zinthu zomwe zingalole kuti mpweya wabwino ufike ku cornea poyerekeza ndi kusavala lenti iliyonse, matenda opwetekawa ndi zina zotero zokhudzana ndi kutupa zikhoza kuchepetsedwa kapena kuthetsedweratu kamodzi.
Oxygen Deprivation Syndrome
Chakumapeto kwa 1995, makina opangidwira okosijeni opangidwa ndi silicone adakonzedwanso kwa anthu onse. Ma lens atsopanowa amavomereza mpweya wokwanira kasanu ndi kawiri monga magalasi amodzi kuti apite ku cornea ndi diso, ngakhale pogona.
Kotero, tiri pati tsopano? Kodi ma lentikoni otere a silicone amathandiza kuthetsa mavuto? Yankho lake ndilo inde ndi ayi. Malisi a silicone amapereka malo abwino kwa diso lonse.
Odwala ambiri amene amavala malaya awo amtundu wofewa amatha kukhala ndi "oxygen deprivation syndrome." Oxygen deprivation syndrome ndi mawu omwe amalumikizidwa ndi makampani osowa maso kuti awaimire odwala omwe alibe matenda, koma amakhala ndi kutupa mu corneas awo ndipo apanga neovascularization, kapena "atsopano".
Mitsempha yambiri ya magazi ikuyesa kupereka oxygen ku cornea kudzera m'magazi m'malo mochokera m'mlengalenga kumene cornea imalandira mpweya wake. Odwalawa nthawi zambiri amakhala ndi maso ofiira ndipo masomphenya awo amasinthasintha kwambiri chifukwa cha kutupa. Chotsatira chake, ndi kovuta kwambiri kwa dokotala wa maso kuti ayesere masomphenya awo pa kuyesedwa kwa diso . Komabe, pamene madokotala amawagwirizanitsa ndi imodzi mwa maselo atsopano a silicone, pafupi ndi zamatsenga, zizindikiro zambiri kapena zizindikiro zimasintha mofulumira.
Kafukufuku Sakusonyeza Kowonjezera Kwachangu
Nanga bwanji za matenda? Kodi magalasi awa amathetsanso matenda? Kafukufuku waposachedwa anamaliza ndi ofufuza onse a ku Australia ndi a United Kingdom kuti azindikire ngati maselo atsopano a silicone hydrogel angachepetse chiopsezo cha chiwopsezo chifukwa cha kukwanira kwa oxygen. Maphunzirowa adavomereza kuti malonda a silicone sanachepetse chiopsezo cha bakiteriya keratitis kwa ovala lens. Kafukufuku wamakono akugwiritsidwa ntchito ndi madokotala omwe akudwala kwa zaka zambiri: Matenda okhudzana ndi lens angayambidwe ndi zinthu zina osati oxygen, monga kuwonongeka kwa mafilimu, kuwongolera pamwamba pa cornea, ndi kuwonjezereka kwa maselo a nyamakazi opangidwa ndi chovala cha lens.
Ndikofunika kumvetsetsa kuti kutumiza kwa oxygen kumakhala chinthu chachikulu, koma sizingakhale chokha chomwe chimapangitsa kuti kachilombo ka HIV kakhale koyambitsa matenda.
Chinthu chimodzi chowopsa chimawoneka pafupifupi pafupifupi kafukufuku wopangidwa pa keratitis yokhudzana ndi lens . Chinthu chimodzi chomwe chimachititsa kuti masomphenya awonongeke kwamuyaya ndi kuvala magalasi usiku wonse. Kuopsa kwanu kuti mukhale ndi kachilombo kawiri kumakhala kovuta kwambiri ngati mutagona m'makinala. Zina mwazifukwa zomwe zingayambitse matenda opatsirana maso ndizo kusuta, kugula malonda kudzera pa intaneti , kutsika kwachuma ndi zachuma, kuyeretsa bwino , kupitiriza kuvala, ndi ukalamba .
Kafukufuku wa ku UK adapeza kuti zoopsa zimasiyana kwambiri malinga ndi mtundu wa lens. Mu phunziroli, ofufuza amayang'ana ngati kugwiritsa ntchito limodzi, makina opatsirana tsiku ndi tsiku amatha kukhala ndi kachilombo kochepa kusiyana ndi mlungu umodzi kapena mlingo wokhazikika pamwezi. Chochititsa chidwi n'chakuti, ogwira ntchito zamakono osungunuka tsiku ndi tsiku anali ndi chiopsezo chachikulu choposa 1.5 chokhala ndi keratitis. Komabe, mtundu wa mabakiteriya kapena "bugudu" unali wochepa kwambiri. Mwa kuyankhula kwina, zamoyo zomwe zinayambitsa matendawa muzitsulo za tsiku ndi tsiku zowonongeka sizinali zochititsa kuti masomphenya awonongeke kwambiri. Ndipotu, palibe omva zonyamula tsiku ndi tsiku omwe anathetsa zotsatira za masomphenya kuposa 20/40.
Mitundu yamakono ya sililicone hydrogel lenses ilipo, kuti mpweya wabwino kwambiri uperekedwe kwa otsika kwambiri:
- Mdima wa Optix Usiku ndi Tsiku ndi Alcon
- Air Optix Aqua ndi Alcon (imalimbikitsa chitonthozo kwa anthu omwe amavala lens tsiku ndi tsiku)
- Biofinity EW ndi Kusamvana
- Acuvue Oasys ndi Vistakon (yokonzedwa kukhala yowonongeka kuposa ena, opindulitsa kwa anthu omwe ali ndi maso owuma)
- Ultra ndi Bausch ndi Lomb
Palinso torc (kuyerekezera kwa astigmatism) silicone lamagetsi a hydrogel pa msika:
- PureVision 2 Toric ndi Bausch ndi Lomb
- Air Optix Aqua kwa Astigmatism ndi Alcon
- Biofinity Toric ndi Kusakanikirana
Ngakhale makilogalamuwa ndi ofunika kwambiri kuposa malonda achikhalidwe, amapereka zowonjezera kwa operekera.
Kotero kutsutsana kukupitiriza: Kodi ndi bwino kugwiritsanso ntchito lens yomwe imayenera kukhala yotetezedwa mwazidzidzidzi ndikusungidwa mu milandu yomwe imakhala yosayera yomwe imakhala ndi mabakiteriya kapena kungotaya lens tsiku lililonse? Moyo wa munthu aliyense, sayansi ya sayansi ya zakuthambo ndi zaumulungu zimasiyanasiyana, kotero chomwe chimagwira ntchito kwa wodwala wina sichikhoza kugwira ntchito yotsatira. Funsani katswiri wanu wothandizira maso kuti akuthandizeni.
Chitsime: Sindt, Christine W., OD Silicone Hydrogel Lens Contact. Ndemanga ya Optometry, Sept 2007.