Puas floaters txhais tau tias retinal detachment?

Cov txheej txheem:

Puas floaters txhais tau tias retinal detachment?
Puas floaters txhais tau tias retinal detachment?
Anonim

Floaters tuaj yeem hais tsawg dua, tab sis lawv yog mus tas li thiab nyob hauv qhov muag. Qee lub sij hawm, lawv tuaj yeem ua ib qho cim ntawm qhov muag mob hnyav dua hu ua retinal detachment. Nyob rau hauv cov xwm txheej no, lub shrinking thiab rub tawm ntawm lub vitreous (hu ua posterior vitreous detachment) ua rau lub retina detach.

Thaum twg kuv yuav tsum txhawj txog qhov muag floaters?

Floaters tuaj yeem tsis muaj mob, tab sis yog tias koj muaj kev hloov pauv lossis nce tus lej, muaj peev xwm ua tau lwm yam tsos mob xws li flashes ntawm lub teeb, kab hlau rhuav los rau hauv thiab thaiv koj lub zeem muag lossis txo qis. kev pom kev, koj yuav tsum hu rau tus kws kho qhov muag, tus kws kho qhov muag lossis mus rau chav xwm txheej ceev.

Cov cim ceeb toom ntawm lub retina detached yog dab tsi?

Symptoms

  • Qhov tshwm sim tam sim ntawd ntawm ntau tus floaters - me me specks uas zoo li ntws los ntawm koj lub zeem muag.
  • Flashes ntawm lub teeb hauv ib lossis ob lub qhov muag (photopsia)
  • qhov muag tsis pom kev.
  • Maj mam txo qis sab (peripheral) pom.
  • Nkauj zoo li duab ntxoov ntxoo hla koj qhov pom kev.

Puas yog kev phais kho qhov muag puas tshem tawm cov floaters?

Tus kws kho qhov muag tshem tawm cov vitreous los ntawm kev phais me me (vitrectomy) thiab hloov nws nrog kev daws teeb meem los pab koj lub qhov muag tswj nws cov duab. Kev phais yuav tsis tshem tawm tag nrho cov floaters, thiab cov floaters tshiab tuaj yeem txhim kho tom qab kev phais. Kev pheej hmoo ntawm vitrectomy suav nrog los ntshav thiab cov kua muag retinal.

Dab tsiua rau floaters dheev tshwm sim?

Feem ntau qhov muag floaters yog tshwm sim los ntawm hnub nyoog hloov pauv uas tshwm sim vim cov khoom zoo li jelly (vitreous) hauv koj ob lub qhov muag ua kua ntau dua. Microscopic fibers nyob rau hauv lub vitreous zoo li clump thiab tuaj yeem pov cov duab ntxoov ntxoo me me ntawm koj lub retina. Cov duab ntxoov ntxoo uas koj pom yog hu ua floaters.

Pom zoo:

Nthuav cov khoom
Puas talcum hmoov yaj hauv dej?
Nyeem ntxiv

Puas talcum hmoov yaj hauv dej?

Talc yog xyaum insoluble hauv dej, dilute ntxhia acids, thiab dilute daws ntawm alkali halides thiab alkaline hydroxides. Nws yog soluble hauv kub concentrated phosphoric acid. Vim li cas talcum hmoov tsis yaj hauv dej? Tsim Hauv Tsev.

Vim li cas thiaj siv schlieren photography?
Nyeem ntxiv

Vim li cas thiaj siv schlieren photography?

Schlieren kev yees duab yog txheej txheem pom kev uas yog siv los yees duab cov dej ntws ntawm qhov sib txawv. Tsim los ntawm German physicist lub yim hli ntuj Toepler nyob rau hauv 1864 los kawm supersonic motion, nws yog dav siv nyob rau hauv aeronautical engineering los yees duab cov ntws ntawm huab cua nyob ib ncig ntawm cov khoom.

Yuav rov hais dua email li cas?
Nyeem ntxiv

Yuav rov hais dua email li cas?

Koj tuaj yeem sim: "Kuv tab tom ua raws li hauv qab no" lossis "Ua raws li qhov no [thov / nug / haujlwm]" "Kuv rov qab rau hauv qab no" lossis "Circling rov qab rau ntawm no [thov / nug / assignment]