Lub choroid no nyob hauv lub qhov muag yog dab tsi? Cia peb nrhiav seb puas yog li ntawd!

Koj puas tau xav tias peb lub qhov muag ua haujlwm zoo kawg li cas? Lub qhov muag yog ib lub cev uas nyuaj thiab muaj nqis heev. Yog li hnub no peb yuav tham txog ib feem ntawm lub qhov muag uas tsis tshua paub, tab sis tseem ceeb heev. Ntawd yog choroid. Tej zaum koj yuav tsis tau hnov ​​​​​​lub npe no ua ntej. Tab sis qhov ntawd tsis ua li cas, hnub no peb yuav tham txog nws yooj yim, hauv txoj kev uas koj tuaj yeem nkag siab.

Lub choroid yog dab tsi? Nws muab kev pabcuam dab tsi rau lub qhov muag?

Hais yooj yim xwb, lub choroid yog txheej nruab nrab ntawm koj lub qhov muag, phab ntsa sab nraud ntawm koj lub qhov muag. Nws yog ib feem ntawm uvea. Yog hais kom meej, lub choroid yog ib qho ntawm cov hlab ntsha tseem ceeb uas muab rau peb lub qhov muag. Nws kuj pab tswj qhov kaj uas nkag mus rau hauv lub qhov muag. Yog li, lub choroid tseem ceeb heev rau peb pom lub ntiaj teb li cas.

Lub choroid muaj ob lub luag haujlwm tseem ceeb:

1. Muab cov ntshav uas tsim nyog rau lub qhov muag.

2. Kev nqus lub teeb nkag mus rau hauv lub qhov muag.

Tam sim no cia peb tham txog ob qho no kom meej me ntsis.

1. Cov ntshav mus rau lub qhov muag

Qhov no yog lub luag haujlwm tseem ceeb ntawm choroid. Tshwj xeeb, nws yog qhov no uas muab ntshav rau lub retina thiab lub paj hlwb optic hauv peb lub qhov muag. Xav txog, lub retina no thiab lub paj hlwb optic yeej ib txwm xa cov cim mus rau lub hlwb. Nws zoo li ob lub tshuab uas ua haujlwm tsis tu ncua. Yog li, ob feem no xav tau ntau cov ntshav thiab cov as-ham dua li lwm cov nqaij ntawm lub qhov muag. Lub choroid muaj ntau cov hlab ntsha, zoo li ib qho tangle. Qhov no yog vim li cas nws thiaj li muab tau cov ntshav raws nraim li qhov tsim nyog.

2. Kev nqus lub teeb

Lub luag haujlwm tseem ceeb ntawm choroid yog nqus lub teeb. Qhov no tsis yog ib yam dab tsi uas pom tseeb heev, tab sis nws tseem ceeb heev.

Koj puas paub tias cov choroid muaj cov xim hu ua melanin ntau dua li lwm cov nqaij hauv peb lub qhov muag? Cov melanin no kuj pom muaj nyob rau hauv peb daim tawv nqaij. Nws yog cov melanin no uas nqus cov teeb ultraviolet uas ua rau peb daim tawv nqaij puas tsuaj los ntawm lub hnub thiab tiv thaiv peb daim tawv nqaij ntawm tej yam xws li mob qog nqaij hlav. Melanin tsis yog tsuas yog nqus tau cov teeb ultraviolet xwb, tab sis yuav luag txhua lub teeb pom kev.

Melanin hauv lub qhov muag ua haujlwm zoo li ua npuas acoustic, uas yog siv los nqus suab. Tej zaum koj yuav tau pom hom ua npuas no ntawm phab ntsa ntawm cov chaw kaw suab. Nws tiv thaiv lub suab kom tsis txhob dhia ncig thiab rov qab los. Ib yam li ntawd, melanin hauv lub qhov muag tiv thaiv lub teeb kom tsis txhob tawg hauv lub qhov muag. Qhov no tiv thaiv cov hlwb photoreceptor hauv peb lub retina kom tsis txhob raug puas tsuaj los ntawm lub teeb tsis tsim nyog. Qhov no tseem ceeb heev rau kev pom kev meej.

Lub choroid nyob qhov twg? Nws zoo li cas?

Lub choroid nyob rau sab nraub qaum ob feem peb ntawm peb lub qhov muag. Yog xav kom meej meej, nws nyob hauv qab phab ntsa dawb sab nraud ntawm lub qhov muag (uas peb hu ua sclera) thiab saum lub retina, uas yog txheej ntes lub teeb nyob tom qab lub qhov muag. Lub thickness ntawm choroid tuaj yeem sib txawv ntawm 0.1 millimeters (mm) mus txog li 0.22 mm. Ntawd yog, kwv yees li qhov tuab ntawm daim ntawv luam ntawv ib txwm muaj.

Hais txog qhov tsos ntawm choroid, nws yog ib qho chaw puv nrog cov hlab ntsha . Tsis tas li ntawd, nws muaj xim tsaus vim yog melanin uas nws muaj. Qhov xav tsis thoob yog tias, ib yam li peb cov tawv nqaij, choroid tuaj yeem muaj cov cim yug menyuam lossis cov pob ib txwm muaj (hu ua nevi). Cov no peb tsis pom los ntawm sab nraud. Cov neeg feem coob tsuas pom tias lawv muaj cov cim no thaum tus kws kho qhov muag kuaj lawv lub qhov muag.

Tej yam mob twg yuav cuam tshuam rau choroid?

Tu siab kawg li, muaj ntau yam kab mob uas cuam tshuam rau choroid. Qhov no tuaj yeem tshwm sim los ntawm ntau yam, los ntawm cov kab mob ntawm lub cev mus rau cov kab mob o. Nov yog ob peb yam piv txwv:

• Albinism : Qhov tsis muaj melanin pigment tuaj yeem ua rau muaj teeb meem pom kev thiab rhiab heev rau lub teeb.
• Cov mob uas muaj txij thaum yug los : Piv txwv li, cov kab mob xws li choroideremia tuaj yeem ua rau lub retina puas tsuaj.
• Kev mob retinopathy uas cuam tshuam nrog ntshav qab zib .
• Choroidal neovascularization thiab macular degeneration (tshwj xeeb tshaj yog nws daim ntawv ntub).
• Mob qog nqaij hlav ntawm qhov muag : tshwj xeeb tshaj yog melanoma hauv qhov muag.
• Qhov muag tsis muaj zog (eye ischemia ): Qhov no yog qhov txo qis ntawm cov ntshav ntws mus rau lub qhov muag. Piv txwv li, mob stroke ntawm lub qhov muag.
• Glaucoma ua rau puas tsuaj rau cov hlab ntsha optic thiab retina .
• Kev raug mob ntawm qhov muag .
• Cov kab mob o : Cov mob xws li uveitis lossis chorioretinitis.

Yog tias muaj teeb meem nrog rau choroid, cov tsos mob twg yuav tshwm sim?

Yog koj muaj ib qho mob uas cuam tshuam rau choroid, tej zaum koj yuav muaj tej yam tsos mob. Cov no suav nrog:

• Cov pob tsaus nti hauv qhov muag (Scotomas) lossis cov teeb meem pom kev.
• Pom kev tsis meej .
• Pom kev ob sab (Diplopia).
• Mob qhov muag.
• Mob taub hau.
• Kev rhiab heev rau lub teeb (qhov muag xiav) (Photophobia)
• Pom kev tsis zoo.

Yog koj muaj cov tsos mob no, mus ntsib kws kho mob tam sim ntawd!

Muaj qee cov tsos mob uas qhia tias muaj mob hnyav dua lossis mob ceev dua . Hauv cov xwm txheej zoo li no, nws yog ib qho tseem ceeb uas yuav tsum nrhiav kev pab kho mob tam sim ntawd.

Cov no yog cov tsos mob uas yuav tsum tau saib xyuas sai sai:

* Xeev siab thiab ntuav nrog rau mob qhov muag/mob siab.

* Pom cov voj voog xim zaj sawv ncig lub teeb.

* Poob qhov muag tam sim ntawd li cas los xij .

* Lub teeb ci ntsa iab tam sim ntawd rau ntawm lub qhov muag (Photopsias).

Yog koj xav li no, thov mus ntsib kws kho mob yam tsis muaj kev ncua .

Muaj kev kuaj dab tsi los nrhiav teeb meem nrog cov choroid?

Thaum koj mus kuaj qhov muag tas li, tus kws kho qhov muag tuaj yeem pom kev hloov pauv hauv choroid los ntawm cov txheej nyias nyias ntawm retina, lossis nkag siab txog qhov xwm txheej ntawm choroid los ntawm kev hloov pauv hauv retina nws tus kheej. Tsis tas li ntawd, muaj ntau qhov kev kuaj tshwj xeeb uas tuaj yeem pab tshuaj xyuas choroid thiab kuaj mob cov kab mob cuam tshuam nrog nws. Lawv yog:

• Kev ntsuam xyuas qhov muag pom tseeb : Qhov no yog kev ntsuam xyuas kom pom tseeb npaum li cas.
• Kev ntsuam xyuas qhov muag pom thiab qhov tob.
• Kev kuaj lub teeb me me : Kev kuaj lub qhov muag nrog lub tshuab microscope tshwj xeeb.

Vim yog qhov kev sib txuas ntawm cov ntshav ncig ntawm choroid thiab retina, qee qhov kev kuaj mob uas kuaj xyuas retina kuj tuaj yeem pab txiav txim siab qhov xwm txheej ntawm choroid. Piv txwv li:

• Kev kuaj mob fluorescein angiography
• Indocyanine ntsuab angiography
• Kev kuaj mob Optical Coherence Tomography (OCT)

Cov kev kuaj no tuaj yeem pab koj tus kws kho mob nkag siab zoo dua txog qhov xwm txheej ntawm koj ob lub qhov muag.

Cov kev kho mob rau cov kab mob uas cuam tshuam rau choroid yog dab tsi?

Feem ntau, tsis muaj kev kho mob uas cuam tshuam ncaj qha rau choroid. Hloov chaw, qhov mob hauv qab uas cuam tshuam rau choroid raug kho . Yog li, cov txheej txheem kho mob tuaj yeem sib txawv heev nyob ntawm tus mob. Nov yog ob peb qho piv txwv:

• Kev Kho Mob Albinism : Vim tias albinism yog ib yam kab mob uas los ntawm noob caj noob ces, nws tsis tuaj yeem kho tau ncaj qha. Kev kho mob yog tsom rau kev txo cov tsos mob.
• Cov tshuaj tiv thaiv kab mob glaucoma : Cov no txo ​​qhov siab nyob rau hauv pem hauv ntej ntawm lub qhov muag thiab tiv thaiv kev puas tsuaj rau cov qauv ntawm thiab nyob ib puag ncig choroid.
• Cov tshuaj tiv thaiv kev o : Cov tshuaj no txo ​​qhov o. Lawv tuaj yeem muab rau hauv lub cev lossis tshwj xeeb rau lub qhov muag.
• Cov tshuaj tiv thaiv kev loj hlob ntawm cov hlab ntsha endothelial (VEGF) : Cov tshuaj tiv thaiv VEGF no tiv thaiv kev tsim cov hlab ntsha tshiab.
• Kev kho mob qog noj ntshavIb yam li lwm hom mob qog noj ntshav, mob qog noj ntshav ntawm qhov muag yuav xav tau kev kho mob xws li phais, tshuaj kho mob qog noj ntshav, thiab kev kho mob hluav taws xob.
• Cov tshuaj uas pab/txhim kho kev ncig ntshav : Qhov no suav nrog ntau yam, xws li cov tshuaj ua kom ntshav nyias (anticoagulants) thiab cov tshuaj uas tswj cov ntshav siab.
• Kev Phais Qhov Muag : Qee yam mob uas cuam tshuam rau choroid yuav tsum tau phais kom kho lawv.

Nyob ntawm seb koj muaj mob dab tsi, tej zaum yuav muaj lwm yam kev kho mob uas yuav tsum tau kho. Koj tus kws kho qhov muag lossis lwm tus kws kho mob tuaj yeem qhia koj ntxiv txog cov kev kho mob no thiab pab koj xaiv qhov uas zoo tshaj plaws rau koj.

Peb ua tau dab tsi los pab kom peb cov choroid noj qab nyob zoo?

Muaj ntau yam uas koj ua tau kom koj ob lub qhov muag noj qab nyob zoo, suav nrog kev noj qab haus huv ntawm koj lub choroid. Qhov tseem ceeb tshaj plaws ntawm cov no yog mus kuaj qhov muag tsis tu ncua . Qhov no siv rau txhua tus, tsis yog rau cov neeg uas hnav tsom iav xwb.

Tsis tas li ntawd xwb, lwm yam uas koj tuaj yeem ua tau yog:

• Hnav cov khoom tiv thaiv qhov muag . Thaum koj ua haujlwm, hnav cov tsom iav tiv thaiv kev nyab xeeb lossis cov tsom iav uas tsim tshwj xeeb rau txoj haujlwm ntawd. Qhov no tseem ceeb heev thaum ua haujlwm nrog hmoov av lossis tshuaj lom neeg.
• Tsis txhob siv cov nicotine . Kev haus luam yeeb, kev haus vape, thiab kev zom luam yeeb tuaj yeem cuam tshuam rau koj lub cev ntshav, uas kuj tuaj yeem ua rau koj lub qhov muag puas tsuaj.
• Tswj cov mob ntev . Yog tias koj muaj ib yam mob uas tuaj yeem cuam tshuam rau koj lub qhov muag thiab/lossis lub cev ncig ntshav, xws li ntshav qab zib lossis ntshav siab, kev tswj hwm qhov mob ntawd zoo tuaj yeem pab tiv thaiv lossis ncua kev puas tsuaj ntxiv rau koj lub qhov muag.
• Saib xyuas koj txoj kev noj qab haus huv tag nrho . Kev tswj hwm qhov hnyav kom noj qab nyob zoo thiab kev noj zaub mov kom zoo yog ob qho tseem ceeb rau kev tswj hwm kev noj qab haus huv ntawm lub qhov muag zoo tshaj plaws.

Thaum kawg, tej yam uas yuav tsum nco ntsoov

Zoo, yog li kuv vam tias koj tam sim no nkag siab zoo dua txog choroid uas peb tau tham txog hnub no.

Nco ntsoov tias, koj lub retina yog qhov uas ntes tau lub teeb thiab hloov nws mus ua cov cim pom uas xa mus rau koj lub hlwb. Yuav ua li no, lub retina xav tau cov ntshav ntau thiab tsis tu ncua. Yog li, koj lub choroid yog cov ntshav tseem ceeb uas xa mus rau koj lub retina thiab cov hlab ntsha optic. Lub choroid kuj pab tswj lub teeb uas nkag mus rau hauv koj lub qhov muag. Qhov no ua rau nws yooj yim dua rau lub retina los ua cov teeb ntawd kom raug.

Cov choroid tej zaum yuav tsis paub zoo li lwm qhov ntawm lub qhov muag. Tab sis nws yog ib feem tseem ceeb thiab tseem ceeb heev ntawm peb qhov kev pom kev . Hauv koj lub neej txhua hnub, muaj ntau yam uas koj tuaj yeem ua tau los saib xyuas kev noj qab haus huv ntawm koj cov choroid - thiab koj lub qhov muag tag nrho. Yog li, nws yog qhov zoo uas xav txog kev saib xyuas koj lub qhov muag, puas yog?

`Choroid, kev noj qab haus huv ntawm qhov muag, retina, cov hlab ntsha optic, melanin, cov kab mob ntawm qhov muag, kev kuaj qhov muag