Kev cog lus furrows (d) yog rings uas txuas mus ncig ntawm tus ciam teb sab nraud ntawm iris. Lawv zoo li wrinkles thiab yog cov khoom ntawm contraction thiab dilation ntawm cov menyuam kawm ntawv. Furrows feem ntau tsis txuas ntxiv thiab staggered hla lub iris.
Dab tsi yog furrows crypts thiab rings hauv ob lub qhov muag?
Pigmented rings yog dav, cov xim dawb nyob ib ncig ntawm cov menyuam kawm ntawv uas yog ib qho ntxoov ntxoo txawv dua li ntawm koj cov iris. Crypts yog pob zeb diamond-zoo li lub qhov nyob rau hauv lub iris uas muaj peev xwm nyob rau hauv ntau yam. Furrows yog ib kab ntawm cov kab daj ntseg uas nkhaus ncig lub iris, thiab lawv tau tsim tawm thaum cov menyuam kawm ntawv qhib thiab kaw hauv kev teb rau lub teeb.
Yuav ua li cas ua rau contraction furrows?
Kev cog lus furrows yog thaj chaw ntawm lub iris uas yog ncig ncig thaum lub iris hloov mus rau qhov sib txawv ntawm lub teeb. Nws cia siab tias nrog cov tub ntxhais kawm dilation, iris yuav cog lus thiab yog li quav mus rau qib siab dua.
Puas yog kev cog qoob loo zoo li qub?
Kev cog lus furrows (d) yog cov nplhaib uas txuas mus ncig ntawm tus ciam teb sab nrauv ntawm iris. … Conjunctival melanosis (e) yog qhov pom uas tuaj yeem pom ntawm thaj chaw scleral nyob ib puag ncig iris. Nws yog feem ntau benign, thiab pom muaj ntau dua hauv qee cov poj koob yawm txwv dua li lwm tus.
Cov qauv hauv koj lub qhov muag txhais li cas?
Phosphenes yog qhov kev xav txav ntawm lub hnub qub thiab cov qauv uas peb pom thaum peb kaw peb lub qhov muag. Lawv tau xav tias yog tshwm sim los ntawm cov khoom siv hluav taws xob los ntawm cov retina tsim txawm tias nws nyob hauv nws "lub xeev so" thiab tsis noj cov ntaub ntawv thiab lub teeb zoo li nws ua thaum peb ob lub qhov muag qhib.
