Kev sim ua nrog qhov zoo li tsis tsuas yog hloov ntawm plaub hau style thiab style hauv khaub ncaws, tab sis kuj xws li ib qho tseem ceeb qhia raws li ib tug ntxoov ntxoo ntawm ob lub qhov muag. Cov lag luam ntawm cov khoom siv hom kab mob uas niaj hnub tsim xim lo ntsiab muag rau lub zeem muag, yog li koj tuaj yeem sib ntxiv yam duab yam tsis muaj kev noj qab haus huv. Txawm li cas los xij, thaum hnav cov khoom siv no nws yog ib qho tseem ceeb uas yuav tau saib xyuas ib co kev cai nruj heev.
Puas muaj cov xim tsom iav tsis pom kev?
Raws li txoj cai, qhov pom tau tias cov khoom siv nrog diopters yog toned. Qhov no txhais tau hais tias qhov kev sib cuag ntawm lub lens yuav ua kom nws qhov muag xim zoo nkauj thiab khaus ntau dua, feem ntau nws qhov kev zoo nkauj, tab sis nws yuav tsis tsim nyog hloov txhua yam.
Qee cov tuam txhab kws ua haujlwm tsim cov khoom siv nrog cov qauv uas simulates lub iris, thiab ib qho xim opaque txheej xim. Cov lo ntsiab muag no muaj peev xwm ua kom npog cov qhov ntxoov ntxoo ntawm lub qhov muag thiab muab lawv ua kom sib luag, sib quas qauv.
Dab tsi yog cov xim lo ntsiab muag tsis pom kev zoo?
Ua ntej nyuam qhuav pib, cov khoom tau muab muag tsuas yog 2 lub voj voog - cov ntsiab muag ntxoov ntxoo rau lub teeb thiab tsaus muag. Ua tsaug rau qhov kev txhim kho ntawm cov yees, kiag li txhua lub xim ntawm cov khoom siv nrog kev noj kev haus muaj nyob rau hnub no.
Tsis tas li ntawd, qhov muag tau tuaj "vwm" los yog kev saib xyuas , kho qhov muag, cov xim lo xim dawb. Yog li tam sim no koj tuaj yeem ruaj ntseg mus rau ib pawg themed, ib qho kev ua koob tsheej Xus lossis yees duab tua, tsis muaj kev txhawj xeeb txog qhov muag mob.
Yog nws muaj nqis muas cov xim lo ntsiab muag kom pom kev zoo dua qub?
Ua ntej yuav khoom tsis muaj qhov sib npaug, nws tseem ceeb heev kom meej tsis meej xws li thickness, oxygen permeability thiab noo noo cov ntsiab lus.
Qhov tseeb yog tias kos duab ib qho dhau ntawm qhov ntxoov ntxoo ntawm ob lub qhov muag, yuav tsum muaj cov khaubncaws sab nraud povtseg ntxiv hauv qhov khoom siv.
Kws txawj pom zoo kom xyaum ua tej yam tsis zoo nrog cov xim lo xim, thiab hnav lawv 3-4 zaug hauv ib lub lim tiam, tsis tu ncua siv tshuaj lom. Nyob rau tib lub sij hawm, lub sij hawm uas lub accessory hu rau lub qhov muag yuav tsum tsis txhob muaj ntau tshaj 8-9 xuab moos. Nyob rau hauv lub hnub ntxiv, nws yog ib qhov tsim nyog los hnav cov ntsiab muag lo ntsiab muag nrog cov dioptries los kho qhov muag .
Microtrauma thaum hnav cov xim lo ntsiab muag xim
Thaum hnav tiv thaiv kev sib txuas lus, lub pob kws txhua hnub ntsib kev ntxhov siab, microtraumas tshwm sim rau ntawm nws lub ntsej muag, nrog cov tsos mob tshwm sim, kev xav ntawm lub cev txawv ntawm lub qhov muag, lacrimation thiab reddening ntawm conjunctiva. Los kho cov ntaub so ntswg ntawm qhov ocular saum npoo, tom qab raug mob, tom qab kev raug mob, ua haujlwm pabcuam, nrog cov tshuaj dexpanthenol, ib yam khoom uas muaj kev hloov tshiab ntawm cov ntaub so ntswg, tshwjxeeb, Korneregel eye gel, yuav siv tau. Nws muaj kev zoo ntawm qhov siab tshaj 5% * dexpantenol, thiab cov carbomer nws muaj prolongs kev sib chwv ntawm dexpanthenol nrog qhov ocular saum vim tias qhov ntxeem tau zoo nkauj. Correleregel mob siab rau ntawm lub qhov muag ntev ntev vim daim ntawv zoo li gel, nws yooj yim rau hauv daim ntawv thov, nws nkag mus rau hauv cov khaubncaws sab nraud tob hauv lub pobntseg thiab ua kom tus txheejtxheem ntawm txoj haujlwm tshiab ntawm cov epithelium ntawm cov nqaij tawv ntawm lub qhov muag, txhawb kev kho ntawm microtraumas thiab tshem tawm qhov mob. Cov tshuaj yog siv thaum yav tsaus ntuj, thaum lub ntsiab muag tau muab tshem tawm lawm.
* 5% yog qhov ntau cov concentration ntawm dexpanthenol ntawm cov ntaub ntawv ntawm lub qhov muag hauv RF. Raws li lub Xeev Sau Npe Tshuaj, Lub Xeev Khoom Siv thiab Cov Koom Haum Ua Haujlwm (Individual Entrepreneurs), koom nrog kev tsim thiab siv cov khoom siv kho mob, thiab cov ntaub ntawv los ntawm cov neeg tsim khoom qhib (cov chaw, cov ntawv luam tawm), Lub Plaub Hlis 2017.
Muaj kev tsis sib haum xeeb. Nws tseem yuav tsum tau nyeem cov lus qhia los yog nrog ib tus kws tshaj lij.