Video: Cyl thiab axis yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lub tog raj kheej ( CYL ): Tus naj npawb qhia lub lenspower xav tau los kho astigmatism hauv koj ob lub qhov muag. Qag : Cov axis qhia lub orientation ntawm astigmatism , ntsuas hauv degrees ntawm 1 txog 180. Yog tias koj tsis muaj astigmatism thiab tsis muaj lub tog raj kheej fais fab ntawm koj daim ntawv xaj xaj, koj yuav tsis muaj axis tooj, ib.
Hais txog qhov no, dab tsi yog qhov axis ntawm qhov muag?
Qag . Qhov no piav qhia lub lens meridian uas tsis muaj lub tog raj kheej lub zog los kho astigmatism. Cov axis tau txhais nrog tus lej los ntawm 1 txog 180. Tus lej 90 sib xws rau qhov nruab nrab meridian ntawm qhov muag , thiab tus lej 180 sib raug rau kab rov tav meridian.
Kuj Paub, lub qhov muag yog OD thiab qhov twg yog OS? iav - Yuav Ua Li Cas Nyeem Koj Cov Tshuaj Kho Qhov Muag Thaum koj saib koj cov tshuaj rau tsom iav , koj yuav pom cov lej teev nyob rau hauv nqe lus ntawm OS thiab OD. Lawv yog cov ntawv Latin: OS (oculus sinister) txhais tau hais tias lub qhov muag sab laug thiab OD (oculus dextrus) txhais tau tias yog sab xis.
Zoo ib yam tuaj yeem nug, 0.25 txhais li cas ntawm kev kuaj qhov muag?
CYL (lub tog raj kheej) Tus nqi ntawm astigmatism (visual distortion) uas yog tshwm sim los ntawm ib tug irregularly zoo li lub cornea. Yog lub thawv no yog khoob, nws txhais tau tias qhov ntawd yog noastigmatism thiab koj qhov muag yog zoo nkauj kheej kheej, zoo li ncaws pob. Yog muaj yog tus lej tsawg, zoo li 0.25 , nws txhais tau tias li koj qhov muag yog ze li puag ncig tab sis tsis zoo.
SPH CYL axis txhais li cas?
OS (oculus sinistrum) yog hais txog koj qhov muag sab laug. Cov SPH (Sphere) lub npov qhia txog kev ntsuas ntev npaum li cas pom (hyperopic) lossis luv pom (myopic) koj yog . Yog koj yog luv pom, lub SPH tus nqi yuav muaj aminus (-) kos npe ua ntej nws. Yog koj yog ntev pom, cov SPH tus nqi yuav muaj ib qho ntxiv (+) kos npe ua ntej.
Pom zoo:
Dab tsi yog Atlas thiab Axis vertebrae?
Lub atlas thiab axis vertebrae yog ob lub pob txha zoo tshaj plaws hauv kab lus vertebral, thiab lawv yog ib feem ntawm xya lub ncauj tsev menyuam vertebrae. Lub atlas yog cov pob txha saum toj kawg nkaus, zaum hauv qab pob txha taub hau; nws yog ua raws li cov axis. Ua ke, lawv txhawb nqa pob txha taub hau, pab txav caj dab, thiab tiv thaiv tus txha nraub qaum
Dab tsi yog cov khoom siv hauv lub cev zom zaub mov thiab lawv lub luag haujlwm yog dab tsi?
Cov khoom siv hauv lub cev zom zaub mov suav nrog cov hniav, tus nplaig, cov qog ua kua qaub, daim siab, lub zais zis, thiab txiav txiav. Txhawm rau ua tiav lub hom phiaj ntawm kev muab lub zog thiab khoom noj khoom haus rau lub cev, rau lub luag haujlwm tseem ceeb nyob hauv cov txheej txheem zom zaub mov: nqos. Kev zais
Dab tsi ntawm cov atlas thiab axis yog qhov tshwj xeeb?
Latin: Atlas, vertebra cervicalis kuv
Dab tsi yog antiarrhythmic yog muab rau pulseless ventricular tachycardia VT thiab ventricular fibrillation VFIB uas tsis teb rau CPR defibrillation thiab vasopressor?
Amiodarone
SPH CYL thiab axis hauv daim ntawv tshuaj qhov muag yog dab tsi?
Common Rx Acronyms OS = Oculus Sinister hais txog lub qhov muag sab laug.SPH = Sphere kho qhov muag tsis pom kev lossis pom kev tsis pom kev.CYL = Lub tog raj kheej ua ke nrog Axis correctsastigmatism PD = Pupillary Distance yog qhov ntsuas qhov deb ntawm cov menyuam kawm ntawv