Aqueous Humor vs Vitreous Humor
Tib neeg lub qhov muag yog tsim los ntawm rau lub ntsiab, uas ncaj qha cuam tshuam rau qhov muag optics, uas yog; cornea, lens, vitreous lom zem, aqueous lom zem, thiab retina. Thaum peb xav txog qhov kev lom zem aqueous thiab vitreous, lawv yog ob qho kev lom zem pom hauv tib neeg lub qhov muag. Raws li lawv lub npe qhia, ob yam khoom no muaj cov kua dej hauv lub cev. Txawm li cas los xij, kev lom zem aqueous yog cov kua tiag tiag, qhov kev lom zem vitreous yog gelatinous loj. Muaj ntau qhov sib txawv ntawm ob qho kev lom zem no.
Aqueous Humor yog dab tsi?
Aqueous lom zem yog cov kua ntshiab pom nyob rau hauv qhov chaw nruab nrab ntawm lub cornea thiab lub lens. Nws yog lossi generated thoob plaws hauv lub neej tag nrho los ntawm pigmented thiab non-pigmented epithelium ntawm ciliary lub cev. Kev tsim tawm thiab ntws tawm ntawm cov dej lom zem yog li 1 txog 2.5 ib feeb. Kev saib xyuas ntawm tus nqi no yog qhov tseem ceeb; txwv tsis pub nws yuav nce los yog txo qhov ocular siab, uas nws thiaj li ua rau ntau hom glaucoma. Hauv ib tus neeg nruab nrab, aqueous lom zem muaj txog 0.2 mL kua. Txawm li cas los xij, qhov nyiaj no txo qis nrog lub hnub nyoog vim qhov nthuav dav ntawm lub lens.
Raws li lub npe txhais tau tias, kev lom zem aqueous muaj cov dej ntau txog li 98.69%. Cov seem muaj cov proteins, lipids, coagulation thiab cell loj hlob inhibitors, electrolytes, qabzib, lactase, amino acids, ascorbate, oxygen thiab lwm yam.
Lub luag haujlwm tseem ceeb ntawm aqueous lom zem yog kev txhawb nqa thiab tshem tawm cov khoom pov tseg ntawm cov avascular xws li lub cornea, lub lens, ua lub luag haujlwm hauv kev cuam tshuam ntawm lub teeb, thiab tswj lub siab intraocular.
Vitreous Humor yog dab tsi?
Vitreous lom zem yog ib qho ntshiab, zoo li cov tshuaj muaj nyob rau hauv lub nraub qaum ntawm lub qhov muag, uas suav nrog qhov chaw nruab nrab ntawm lub lens thiab lub retina. Cov ntaub ntawv gelatinous no tshwm sim thaum lub sij hawm embryonic theem thiab tsis ntxiv nrog lub hnub nyoog raws li nws tsis tau txais kev pab los ntawm cov hlab ntsha. Vitreous lom zem yog secreted los ntawm tsis-pigmented ciliary lub cev. Nws feem ntau yog dawb ntawm cov kab mob tsis zoo li cov ntaub so ntswg nyob ib puag ncig vim qhov kev lom zem vitreous yog kaw los ntawm cov txheej txheem tawv tawv. Txawm hais tias nws raug kaw, nws tsis yog ib qho inert vim nws muaj ob peb lub hlwb nrog rau phagocytic hlwb uas rhuav tshem cov khoom txawv teb chaws thiab cov kab mob.
Vitreous lom zem yog tsim los ntawm dej, uas yog 98-99% ntawm tag nrho cov ntim. Tsis tas li ntawd, nws kuj muaj ntsev, suab thaj, vitrosin thiab lwm yam.
Lub luag haujlwm tseem ceeb ntawm vitreous lom zem yog tuav lub retina hauv lub qhov muag thiab muab cov duab rau lub qhov muag.
Dab tsi yog qhov txawv ntawm Aqueous thiab Vitreous Lom Zem?
• Aqueous lom zem yog cov kua ntshiab pom nyob nruab nrab ntawm lub cornea thiab lub lens ntawm lub qhov muag, whereas vitreous lom zem yog ib tug ntshiab gelatinous loj pom nyob rau hauv lub rear ib feem ntawm lub qhov muag ntawm lub lens thiab retina.
• Aqueous lom zem yog tsis tu ncua generated thiab tsis tu ncua los ntawm pem hauv ntej ntawm lub qhov muag nyob rau hauv lub neej, whereas vitreous lom zem yog tsim tsuas yog thaum lub sij hawm embryonic theem thiab nyob twj ywm rau tag nrho lub neej.
• Vitreous lom zem tsis ntxiv thaum aqueous lom zem ua.
• Lub ntim ntawm vitreous lom zem yog siab dua qhov kev lom zem aqueous hauv ib lub qhov muag.
