Yakachengeteka Kupfuura Nguva Dzose Dhepfenyuro?
Mamiriyoni evanhu anofarira hutano hwemagetsi anogarwa zuva rega rega. Zvisinei, kutora lensisi haisi ngozi pasina. Zvakanyanya, zvinorwadza maziso maziso zvinokonzera kurasikirwa kana kupofu kunogona kuitika. Kunyange zvazvo kuwandisa kwezvipembenene izvi zviduku, kuitika kunenge kuchikosha zvakakwana kuti vanachiremba vanyevere varwere zvezvipingamupinyi zvinosangana nehutano hwekugadzira lens, uye kurudzira zvimwe zvigadzirwa zvinogona kubatsira kune varwere vavo.
Somugumisiro wezvipingamupinyi zvinosangana nehutano hwekugadzira lens, kutsvaga lens tsvakurudzo nekufambisa zvakaronga munguva yakapfuura pakubudisa lenzi inobvumira mazinga epamusoro emojeni kuti apfuurire mberi. Vatsvakurudzi vanofunga kuti kana zvinhu zvingagadzirwa zvinogona kuita kuti oksijeni yakawanda isvike kune cornea kana ichienzaniswa nekusafuka chero bhero chero ipi zvayo, zvirwere izvi zvinorwadza uye mamwe maitiro ekubatana kwema-lens angaderedzwa kana kubviswa kamwechete.
Oxygen Deprivation Syndrome
Munenge muna 1995, high oxygen contact lens ine silicone yakatanga kuiswa kuvanhu. Aya majekisi matsva akabvumira kanomwe kuwanda kwe okisijeni seanorayenzi emazuva ano kuti apfuurire ku cornea uye ziso, kunyange panguva yehope.
Saka, tiripi iye zvino? Ita idzi-high-oxygen silicone lens dzakabatsira kubvisa matambudziko here? Mhinduro ndeyeei uye kwete. Silicone lenzi inopa nzvimbo yakagadzikana yeziso rose.
Varwere vakawanda vanowedzera-kupfeka maziso avo anowanzoshamwaridzana vanogona kuwedzera "oxygen deprivation syndrome." Oxygen deprivation syndrome ishoko rakagadzirwa neshizha rekuchengeta meso kuti rimirire varwere vasina chirwere, asi vachikurira mumakorasi avo uye vakagadzira neovascularization, kana kuti "ropa idzva mumudziyo wekukura" mumaziso avo.
Iyi miviri yemajozi isingazivikanwi iri kuedza kufudza okisijeni kune cornea kuburikidza nekuyerera kweropa pane kubva mumhepo umo cornea inowanzogamuchira oxygen yayo. Varwere ava vanowanzove nemaso matsvuku uye maonero avo anochinja zvikuru pamusana pekudzimuka. Somugumisiro, zvakaoma zvikuru kune chiremba weziso kuti aedze maonero avo panguva yekuongorora kweziso . Zvisinei, apo vanachiremba vanovatsigira zvakare mune imwe yezvitsva zvitsva-silicone-based, zvinenge zvemashiripiti, dzakawanda zvezviratidzo kana zviratidzo zvinogadzirisa nokukurumidza.
Kutsvakurudza Hakunoratidzi Ratidza Kuderedza Dambudziko Rokuzvidzivirira
Zvakadini nehutachiona? Iko lenzi idzi dzinopedza zvirwere pamwe chete here? Zvidzidzo zvenguva pfupi zvakapedzerwa nevese veAustralia neUnited Kingdom vatsvakurudzi kuti vaone kana idzva idzva re silicone hydrogel lenzi dzichideredza njodzi yehutachiona nekuda kwekuvandudzirwa kweokisijeni kukwana. Dzidzo idzi dzakabvumirana kuti silicone lenses haina kuderedza ngozi yebhakitiriya keratitis yekutumira lens vatakuri. Tsvakurudzo yezvino inotarisa pane izvo vanachiremba vanoita zvekuchirwere kwemakore: Kutapurirana kwema-lens-yakabatana kunogona kukonzerwa nezvimwe zvinhu kunze kweiokisijeni, zvakadai sokuputika kwemafirimu ekusimudza, kuchinja mukati memhepo yekromaa, uye kuwedzereka kwekuwedzerwa kwemasero emakone anokonzerwa ne shandisa lens kuvhara.
Zvakakosha kunzwisisa kuti kutapurika kweokisijeni kuchiri chinhu chikuru, asi hachisi icho chete chinoita kuti utachiona huvepo.
Imwe ngozi inotaridzika inotaridzika inosvika munenge imwe neimwe yekudzidza yakagadziriswa paunobata lens-related keratitis ... kurara mumagetsi lenzi . Iyo imwe chete, yakawanda inokonzera ngozi yekusingaperi kwekuonekwa kwemaono inopfeka lenzi usiku humwe. Ngozi yako yekutapukirwa nehutachiwana yakapetwa katatu kana iwe ukarara mumagetsi. Zvimwe zvinokonzera njodzi yekuvandudza zvirwere zvemaziso zvakanyanya zvinosanganisira kusvuta, kutenga lenzi kuburikidza neIndaneti , hutsika hwehupfumi hwehupfumi, kuchenesa kusina kukodzera , kuwedzera kupfeka nguva, uye mudiki .
Kuongorora kweku UK kwakaona kuti njodzi dzakasiyana-siyana zvakasiyana zvichienderana nebasa rekutengesa lens. Muchidzidzo ichi, vatsvakurudzi vakatarisa kuti kushandiswa kusina kushandiswa, kushandiswa kwemazuva ose kunokonzerwa nehutachiona huri nehutachiwana hwehutachiwana hunopfuura mavhiki maviri kana mwedzi imwe neimwe inogadziriswa. Zvinofadza kuti vatakuri vemazuva ose vaikwanisa kuvhara keratitis. Zvisinei, rudzi rwebhakitiriya kana "bug" hwakanga husina kunaka. Mune mamwe mazwi, zvipenyu izvo zvakakonzera kutapurirwa mumagetsi ezuva nezuva anokwanisa kuvhara hazvisi izvo zvinogona kukonzera kurasikirwa kwakanyanya. Kutaura zvazviri, hapana wevatakuri vemazuva ose vaipedza migumisiro yechiratidzo yakaipisisa kupfuura 20/40.
Ikozvino mabhii e silicone hydrogel lenses anowanikwa, mukuda kwekukwirira kukuru kwekukisijeni kunoderera kune yakaderera:
- Air Optix Night & Day neAlcon
- Air Optix Aqua neAlcon (inokurudzira kunyaradza kuvanhu vanopfeka lens zuva nezuva)
- Biofinity EW neChipervision
- Acuvue Oasys neVistakon (yakagadzirirwa kuva yakaoma kupfuura dzimwe, inobatsira vanhu vane meso akaoma)
- Ultra neBausch neLomb
Pano pane torc (astigmatism kururamisa) silicone hydrogel lens pamusika:
- PureVision 2 Toric neBausch neLomb
- Air Optix Aqua yeAstigmatism neAlcon
- Biofinity Toric neCopervision
Kunyange zvazvo majekisi aya ari anowedzera mutengo kupfuura lenzi dzemazuva ose, anopa humwe huripo kune vanoitakura.
Saka kukakavara kunopfuurira: Zviri nani here kushandisa zvakare lens inofanirwa kuve yakasvibiswa uye yakachengetwa mumatambudziko angave asina kuchena anobata mabhakitiriya kana kungosiya lens zuva rega rega? Mararamiro evanhu vose, biochemistry uye physiology inopesana, naizvozvo izvo zvinoshanda kune murwere umwe zvingasashanda kune inotevera. Kumbira nyanzvi yako yekutarisira maziso kune mazano.
Chinhu: Sindt, Christine W., OD Silicone Hydrogel Kukurukurirana Lens. Kudzokorora kweOptometry, Sept 2007.