Cov khoom
IDEAL Basic Standard Stock Lens
| KEV SAIB XYUAS | UA TAS LAWM | Semi-finished | |
| TUS QAUV | IB LUB ZEEM MUAG | 1.49 COV NTAUB NTAWV | 1.49 COV NTAUB NTAWV |
| 1.56 NRUAB NRAB INDEX | 1.56 QHIA NRUAB NRAB | ||
| 1.60/1.67/1.71/1.74 | 1.60/1.67/1.71/1.74 | ||
| BIFOCAL | SAUM TOJ ROOB | SAUM TOJ ROOB | |
| PUAG NCIG SAUM TOJ | PUAG NCIG SAUM TOJ | ||
| TSIS MUAJ NEEG | TSIS POM | ||
| KEV TXHIM KHO | Txoj Kev Hauv Tsev Luv | Txoj Kev Hauv Tsev Luv | |
| Txoj Kev Txoj Kev | Txoj Kev Txoj Kev | ||
| TSIM TSHIAB 13 + 4 hli | TSIM TSHIAB 13 + 4 hli |
● Cov Lens Pom Kev Ib Zaug: Lub lens pom kev ib zaug yog dab tsi?
Thaum nws nyuaj rau tsom mus rau cov khoom ze lossis deb, cov tsom iav pom kev ib leeg tuaj yeem pab tau. Lawv tuaj yeem pab kho qhov yuam kev: Kev cuam tshuam Refractive rau myopia thiab presbyopia.
● Cov iav ntau lub focal:
Thaum tib neeg muaj ntau tshaj ib qho teeb meem pom kev, yuav tsum muaj cov tsom iav uas muaj ntau lub ntsiab lus tsom mus rau. Cov tsom iav no muaj ob lossis ntau daim ntawv qhia rau kev kho qhov muag. Cov kev daws teeb meem suav nrog:
Lub tsom iav ob sab: Lub tsom iav no muaj ob ntu. Ib nrab sab saud pab pom tej yam nyob deb, thiab ib nrab sab hauv qab pab pom tej yam nyob ze. Lub tsom iav ob sab tuaj yeem pab cov neeg hnub nyoog tshaj 40 xyoo uas muaj mob presbyopia. Mob presbyopia uas ua rau tsis muaj peev xwm tsom ntsoov rau qhov ze.
Lub lens progressive: Hom lens no muaj lub lens uas nws qib hloov maj mam ntawm ntau qib lens sib txawv, lossis qhov sib txawv tas mus li. Lub lens maj mam los rau hauv qhov pom tseeb thaum koj saib mus rau hauv qab. Nws zoo li cov tsom iav bifocal uas tsis muaj kab pom hauv lub lens. Ib txhia neeg pom tias cov lens progressive ua rau muaj kev cuam tshuam ntau dua li lwm hom lens. Qhov no yog vim tias thaj chaw ntau dua ntawm lub lens yog siv rau kev hloov pauv ntawm cov iav tsom iav ntawm lub zog sib txawv, thiab thaj chaw tsom iav me dua.
Cov tsom iav no pab tau yog tias koj muaj teeb meem tsom mus rau cov khoom uas nyob ze lossis nyob deb. Cov tsom iav pom kev ib leeg tuaj yeem kho tau:
● Pom kev tsis meej.
● Pom kev tsis meej.
● Pom kev deb dhau.
Cov tsom iav nyeem ntawv yog ib hom tsom iav pom kev ib zaug xwb. Feem ntau, cov neeg uas muaj presbyopia pom cov khoom nyob deb kom meej tab sis muaj teeb meem pom cov lus thaum lawv nyeem ntawv. Cov tsom iav nyeem ntawv tuaj yeem pab tau. Koj tuaj yeem yuav lawv ntawm lub khw muag tshuaj lossis lub tsev muag ntawv, tab sis koj yuav tau txais lub tsom iav raug dua yog tias koj mus ntsib tus kws kho mob kom tau daim ntawv yuav tshuaj. Cov tsom iav nyeem ntawv uas yuav ntawm lub khw muag tshuaj tsis pab tau yog tias ob lub qhov muag sab xis thiab sab laug muaj cov ntawv yuav tshuaj sib txawv. Ua ntej sim siv cov tsom iav nyeem ntawv, mus ntsib koj tus kws kho qhov muag ua ntej kom paub tseeb tias koj siv tau lawv kom muaj kev nyab xeeb.
Yog tias koj muaj ntau tshaj ib qho teeb meem pom kev, tej zaum koj yuav xav tau cov tsom iav uas muaj ntau lub lens. Cov lens no muaj ob lossis ntau daim ntawv qhia kho qhov muag. Koj tus kws kho mob yuav tham txog koj cov kev xaiv nrog koj. Cov kev xaiv suav nrog:
✔ Cov tsom iav ob sab: Cov tsom iav no yog hom tsom iav ntau sab uas siv ntau tshaj plaws. Lub tsom iav muaj ob ntu. Sab saud pab koj pom tej yam nyob deb, thiab sab hauv qab pab koj pom tej yam nyob ze. Cov tsom iav ob sab tuaj yeem pab cov neeg hnub nyoog tshaj 40 xyoo uas muaj teeb meem pom kev tsis meej pem, uas ua rau koj lub peev xwm tsom mus rau ze tsis zoo.
✔ Cov tsom iav Trifocals: Cov tsom iav no yog cov tsom iav bifocals uas muaj ib ntu thib peb. Ntu thib peb pab cov neeg uas muaj teeb meem pom tej yam uas nyob hauv tes ncav cuag tau.
✔ Progressive: Hom lens no muaj lub lens inclined, lossis qhov sib txuas ntxiv mus, ntawm cov zog lens sib txawv. Lub lens tsom mus rau ze dua thaum koj saib los ntawm nws. Nws zoo li bifocals lossis trifocals tsis muaj kab pom hauv cov lens. Ib txhia neeg pom tias cov lens progressive ua rau muaj kev cuam tshuam ntau dua li lwm hom. Qhov ntawd yog vim tias ntau thaj chaw ntawm lub lens siv rau kev hloov pauv ntawm ntau hom lens. Cov cheeb tsam focal me dua.
✔ Cov tsom iav computer: Cov tsom iav multifocal no muaj kev kho tshwj xeeb rau cov neeg uas xav tau tsom mus rau cov ntxaij vab tshaus computer. Lawv pab koj kom tsis txhob mob qhov muag.
