![Dab tsi yog k1 thiab k2 hauv Keratometry? Dab tsi yog k1 thiab k2 hauv Keratometry?](https://i.answers-medical.com/preview/medical-health/13933899-what-is-k1-and-k2-in-keratometry-j.webp)
Video: Dab tsi yog k1 thiab k2 hauv Keratometry?
![Video: Dab tsi yog k1 thiab k2 hauv Keratometry? Video: Dab tsi yog k1 thiab k2 hauv Keratometry?](https://i.ytimg.com/vi/EI6EwOq_Xek/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Keratometry tau ntsuas hauv 2 meridians: uas yog, tiaj keratometry ( K1 ) thiab txias keratometry ( K2 ). Tus nqi K tau xam raws li qhov nruab nrab ntawm K1 thiab K2.
Thiaj li, K nyeem dab tsi hauv ophthalmology?
Kev ntsuas keratometry ( K ) yog qhov ntsuas ntawm txoj kab nkhaus ntawm lub qhov muag; corneal curvature txiav txim siab lub zog ntawm lub khob iav. Qhov sib txawv ntawm lub zog hla lub khob (qhov sib txawv meridians) ua rau astigmatism; yog li ntawd, keratometry ntsuas astigmatism.
Ib qho ntxiv, Keratometry test yog dab tsi? A keratometer , tseem hu ua ophthalmometer, yog lub ntsuas ntsuas ntsuas ntsuas qhov nkhaus ntawm sab xub ntiag ntawm lub qhov muag, tshwj xeeb tshaj yog rau kev ntsuas ntsuas thiab axis ntawm astigmatism.
Kuj paub, dab tsi yog nyeem ntawv K ib txwm?
Cov txiaj ntsig: Tus nruab nrab K yog 43.57, nrog thaj tsam ntawm 38.25 txog 50. Tus nruab nrab axial ntev yog 24.04, nrog thaj tsam ntawm 18.4 txog 31.91. Ntau tshaj 90% ntawm K qhov tseem ceeb ntawm 40.5 thiab 46.5; thiab ntau dua 90% ntawm qhov ntev axial nyob nruab nrab ntawm 22.5 txog 26.5 hli.
Dab tsi yog corneal topography siv rau?
Corneal topography kev yog txheej txheem siv rau saib xyuas thiab ntsuas cov kev hloov pauv uas yuav tshwm sim rau qhov zoo thiab ntseeg tau ntawm lub lub qhov muag ntawm koj lub qhov muag. A lub qhov muag tus kws sau xov xwm tshaj tawm txoj haujlwm ntawm cov nplhaib ci ci, hu ua Placido disc, mus rau saum npoo ntawm lub qhov muag , uas tau pom rov qab rau hauv qhov ntsuas.
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