Dɛn ne saa choroid yi a ɛwɔ aniwa no mu? Momma yɛnhwehwɛ mu pɛpɛɛpɛ!

So woasusuw sɛnea yɛn aniwa yɛ adwuma ma ɛyɛ nwonwa no ho pɛn? Aniwa yɛ akwaa a ɛyɛ den yiye na ɛsom bo. Enti ɛnnɛ yɛrebɛka aniwa no fã bi a wonnim no pii, nanso ɛho hia yiye ho asɛm. Ɛno ne choroid no. Ebia woante din yi da. Nanso ɛno deɛ ɛnyɛ hwee, ɛnnɛ yɛbɛka ho asɛm tiawa, wɔ ɔkwan a wobɛtumi ate aseɛ so.

Dɛn ne choroid no? Ɔsom bɛn na ɛde ma aniwa?

Sɛ yɛbɛka no tiawa a, choroid no yɛ w’aniwa no mfinimfini fã, w’aniwa no akyi ɔfasu. Ɛyɛ uvea no dea. Sɛ yɛbɛka no pɛpɛɛpɛ a, choroid yɛ mogya ntini atitiriw a ɛma yɛn aniwa no mu biako. Ɛboa nso ma wodi hann dodow a ɛkɔ aniwa no mu no so. Enti, choroid no ho hia yiye wɔ sɛnea yehu wiase no mu.

Choroid no wɔ dwumadi atitiriw abien:

1. Mogya a ɛho hia a wɔde bɛma aniwa no.

2. Hann a ɛkɔ aniwa no mu a wɔtwe.

Afei momma yɛnka saa abien yi ho asɛm nkɔ akyiri kakra .

1. Mogya a ɛkɔ aniwa no mu

Eyi ne adwuma titiriw a choroid no yɛ. Titiriw no, eyi na ɛde mogya kɔ retina ne aniwa ntini a ɛwɔ yɛn aniwa mu no mu. Fa no sɛ, saa retina yi ne aniwa ntini no de nsɛnkyerɛnne kɔ amemene no mu bere nyinaa. Ɛte sɛ mfiri abien a ɛyɛ adwuma a ennyae. Enti, saa afã abien yi hia mogya ne aduannuru pii sen aniwa no ntini afoforo no. Choroid no wɔ mogya ntini pii, te sɛ tangle. Eyi nti na etumi ma mogya dodow a ɛho hia pɛpɛɛpɛ no.

2. Hann a wɔtwetwe

Adwuma foforo a ɛho hia a choroid no yɛ ne sɛ ɛbɛtwe hann. Eyi nyɛ biribi a ɛda adi kɛse, nanso ɛho hia paa.

So wunim sɛ aduru bi a wɔfrɛ no melanin wɔ choroid no mu dɔɔso sen ntini foforo biara a ɛwɔ yɛn aniwa mu? Saa melanin koro yi ara wɔ yɛn honam ani nso. Ɛyɛ saa melanin yi na ɛtwe ultraviolet mframa a epira fi owia mu na ɛbɔ yɛn honam ani ho ban fi nneɛma te sɛ honam ani kokoram ho. Ɛnyɛ ultraviolet mframa nko na melanin tumi twetwe, na mmom ɛkame ayɛ sɛ hann a wotumi hu nyinaa.

Melanin a ɛwɔ aniwa no mu yɛ adwuma te sɛ acoustic foam, a wɔde twetwe nnyigyei. Ebia woahu ahurututu a ɛte sɛɛ wɔ mmeae a wɔkyere nnwom gu kasɛt so no afasu so. Ɛma nnyigyei no gyae sɛ ɛrehuruhuruw na ɛnyɛ nea ɛrebɔ. Saa ara na melanin a ɛwɔ aniwa no mu no siw hann kwan sɛ ɛbɛpete aniwa no mu. Eyi mma hann a ɛho nhia nsɛe photoreceptor nkwammoaa a ɛwɔ yɛn retina no mu no. Eyi ho hia yiye ma anisoadehu a emu da hɔ.

Ɛhe na choroid no wɔ? Ɛte sɛn?

Choroid no wɔ yɛn aniwa no akyi nkyem abiɛsa mu abien. Sɛ yɛbɛka no pɛpɛɛpɛ a, ɛwɔ aniwa no akyi ɔfasu fitaa (a yɛfrɛ no sclera) no ase ne retina a ɛyɛ ade a ɛma hann hu wɔ aniwa no akyi no atifi. Choroid no mu duru betumi ayɛ soronko fi milimita 0.1 (mm) kosi bɛyɛ mm 0.22. Ɛne sɛ, bɛyɛ sɛ krataa a wɔde tintim nhoma daa no mu duru.

Ɛdefa sɛnea choroid no te ho no, ɛyɛ beae a mogya ntini ahyɛ mu ma . Afei nso, ne kɔla yɛ tuntum esiane melanin a ɛwɔ mu nti. Nea ɛyɛ nwonwa ne sɛ, te sɛ yɛn honam ani no, choroid no betumi anya awo agyiraehyɛde anaasɛ nsensanee a ɛfata (a wɔfrɛ no nevi). Eyinom mfi abɔnten ntumi nhu. Nnipa dodow no ara hu sɛ wɔwɔ bi bere a aniwa ho oduruyɛfo bi hwehwɛ wɔn aniwa mu nkutoo.

Tebea bɛn na ebetumi aka choroid no?

Nea ɛyɛ awerɛhow no, nyarewa ahorow bi wɔ hɔ a ebetumi aka choroid no. Eyi betumi afi nneɛma ahorow mu aba, efi mogya a ɛkɔ nipadua no mu nyarewa so kosi ɔyare a ɛma obi ho hyehye no so. Nhwɛso kakraa bi ni:

• Albinism : Sɛ obi nni melanin aduru a, ebetumi ama wahu ade yiye na wate hann nka.
• Tebea horow a wonya fi awo mu (wɔwoo no bere a wɔwoo no) : Sɛ nhwɛso no, nyarewa te sɛ choroideremia betumi asɛe retina no.
• Asikreyare a ɛma obi ani so yɛ adwuma .
• Choroidal neovascularization ne macular degeneration (titiriw nea ɛyɛ nsu).
• Aniwa mu kokoram : titiriw no, aniwa mu melanoma.
• Eye ischemia : Eyi yɛ mogya a ɛkɔ aniwa no mu a ɛso tew. Sɛ nhwɛso no, aniwa a ɛyɛ mmerɛw.
• Glaucoma sɛe aniwa ntini ne retina .
• Aniwa mu apirakuru .
• Nyarewa a ɛma obi ho hyehye no : Tebea horow te sɛ uveitis anaa chorioretinitis.

Sɛ ɔhaw bi wɔ choroid no ho a, sɛnkyerɛnne bɛn na ebetumi aba?

Sɛ wowɔ tebea bi a ɛfa choroid ho a, wubetumi anya sɛnkyerɛnne ahorow bi. Eyinom bi ne:

• Nsonsonoe a ɛyɛ tumm wɔ anisoadehu mu (Scotomas) anaasɛ aniwa mu sintɔ ahorow.
• Anisoadehu a ɛyɛ kusuu .
• Anisoadehu abien (Diplopia).
• Aniwa mu yaw.
• Ti a ɛyɛ yaw.
• Hann ho nkate (ani bruu) (Photophobia) .
• Anisoadehu a ɛba fam.

Sɛ wuhu saa sɛnkyerɛnne ahorow yi a, kɔ oduruyɛfo nkyɛn ntɛm ara!

Nsɛnkyerɛnne ahorow bi wɔ hɔ a ɛkyerɛ sɛ tebea bi a emu yɛ den anaasɛ egye ntɛmpɛ . Wɔ nsɛm a ɛtete saa mu no, ɛho hia sɛ wohwehwɛ aduruyɛfo afotu ntɛm ara.

Eyinom ne sɛnkyerɛnne ahorow a ɛsɛ sɛ wɔhwɛ so ntɛm ara:

* Akisikuru ne ɔfe a aniwa mu yɛ no yaw/nhyɛso.

* Sɛ wuhu nkaa a ɛyɛ nyankontɔn a atwa hann ho ahyia.

* Anisoadehu a ɛyera mpofirim wɔ ɔkwan biara so .

* Hann a ɛhyerɛn mpofirim wɔ aniwa no anim (Photopsias).

Sɛ wote biribi a ɛte sɛɛ nka a, yɛsrɛ wo kɔ oduruyɛfo nkyɛn a ɛnkyɛ .

Sɔhwɛ bɛn na ɛwɔ hɔ a wɔde hu ɔhaw ahorow a ɛwɔ choroid no mu?

Sɛ wokɔ aniwa mu nhwehwɛmu daa a, aniwa ho oduruyɛfo betumi ahu nsakrae a ɛba choroid no mu denam retina no fã a ɛyɛ tratraa no so, anaasɛ ɔbɛte choroid no tebea ase denam nsakrae a ɛba retina no ankasa mu no so. Nea ɛka ho no, nhwehwɛmu titiriw pii wɔ hɔ a ebetumi aboa ma wɔahwehwɛ choroid no mu na wɔahu nyarewa a ɛfa ho. Wɔne:

• Visual acuity test : Eyi yɛ sɔhwɛ a wɔde hwɛ sɛnea wubetumi ahu no pefee.
• Nsɔhwɛ ahorow a wɔde hwɛ ade ne sɛnea wohu nneɛma a emu dɔ.
• Slit lamp exam : Wɔde afiri a wɔde hwɛ nneɛma nketenkete soronko bi hwehwɛ aniwa no mu.

Esiane sɛ mogya a ɛkɔ nipadua no mu no wɔ abusuabɔ a ɛda choroid ne retina ntam nti, nhwehwɛmu ahorow bi a wɔde hwehwɛ retina no mu nso betumi aboa ma wɔahu sɛnea choroid no te. Nhwɛsoɔ:

• Fluorescein a ɛma mogya tu
• Indocyanine ahabammono a wɔde yɛ mogya mu ntini
• Tomography a Wɔde Aniwa Nhyiam (OCT) .

Saa nhwehwɛmu ahorow yi betumi aboa wo duruyɛfo ma wate w’ani tebea no ase yiye.

Dɛn ne nnuru a wɔde sa nyarewa a ɛka choroid no?

Mpɛn pii no, ayaresa kakraa bi na ɛwɔ hɔ a ɛka choroid no tẽẽ. Mmom no, wɔsa tebea a ɛda adi a ɛrehaw choroid no . Enti, akwan a wɔfa so sa yare no betumi ayɛ soronko kɛse a egyina tebea no so. Nhwɛso kakraa bi ni:

• Albinism Ayaresa : Esiane sɛ albinism yɛ awosu mu yare nti, wontumi nsa no tẽẽ. Wɔde ayaresa no atirimpɔw ne sɛ ɛbɛtew sɛnkyerɛnne ahorow no so.
• Nnuru a wɔde ko tia atiridiinini : Eyinom brɛ nhyɛso a ɛwɔ aniwa no anim no ase na esiw nneɛma a ɛwɔ choroid no so ne nea atwa ho ahyia no nsɛe ano.
• Nnuru a ɛko tia ɔyare mmoawa : Saa nnuru yi brɛ ɔfe ase. Wobetumi de ama wɔ nhyehyɛe kwan so anaasɛ wɔde ama aniwa no pɔtee.
• Nnuru a ɛko tia ntini mu endothelial growth factor (VEGF) : Saa nnuru a ekum VEGF yi mma mogya ntini foforo ntumi nkɔ.
• Kokoram ayaresa ahorow: Te sɛ kokoram ahorow afoforo no, ebia aniwa mu kokoram behia ayaresa te sɛ oprehyɛn, nnuru a wɔde sa yare, ne mframa a wɔde sa yare.
• Nnuru a ɛboa/ɛma mogya no tu mpɔn : Nneɛma pii ka eyi ho, te sɛ nnuru a ɛma mogya yɛ mmerɛw (ancoagulants) ne nnuru a ɛhwɛ mogya mmoroso so.
• Aniwa oprehyɛn : Tebea horow bi a ɛka choroid no hwehwɛ sɛ wɔyɛ oprehyɛn de siesie.

Ebia wɔbɛkyerɛ ayaresa afoforo a egyina wo tebea a ɛwɔ ase no so. W’ani ho oduruyɛfo anaa akwahosan ho ɔyaresafo foforo betumi aka saa ayaresa ahorow yi ho asɛm pii akyerɛ wo na waboa wo ma woapaw nea eye ma wo.

Dɛn na yebetumi ayɛ na ama yɛn choroid no akɔ so ayɛ yiye?

Nneɛma pii wɔ hɔ a wubetumi ayɛ na ama w’ani ayɛ yiye, a wo choroid akwahosan ka ho. Eyinom mu nea ɛho hia sen biara ne sɛ wobɛyɛ w'ani mu nhwehwɛmu daa . Eyi fa obiara ho, ɛnyɛ wɔn a wɔhyɛ ahwehwɛ nkutoo.

Nea ɛka ho no, nneɛma afoforo a wubetumi ayɛ ne:

• Hyɛ aniwa ho banbɔ . Sɛ woreyɛ adwuma biara a, hyɛ ahobammɔ ahwehwɛ anaa ahwehwɛ a wɔayɛ ama saa adwuma no pɔtee. Eyi ho hia titiriw bere a wode mfutuma anaa nnuru reyɛ adwuma no.
• Kwati nicotine a wode bedi dwuma . Sigaretnom, vaping, ne tawa a wɔwe nyinaa betumi aka wo mogya a ɛkɔ wo mogya mu no, na ɛno nso betumi asɛe w’ani.
• Di tebea horow a enni sabea ho dwuma . Sɛ wowɔ tebea bi a ebetumi aka w’ani ne/anaasɛ mogya a ɛkɔ wo mogya mu, te sɛ asikreyare anaa mogya mmoroso a, saa tebea no a wubedi ho dwuma yiye no betumi aboa ma woasiw w’ani a ɛsɛe kɛse no ano anaasɛ akyɛ.
• Hwɛ w'akwahosan nyinaa so . Mu duru a ɛfata a wobɛkɔ so ayɛ ne aduan pa a wubenya nyinaa ho hia na ama woanya aniwa akwahosan a eye sen biara.

Nea etwa to no, nneɛma a ɛsɛ sɛ yɛkae

Okay, enti mewɔ anidaso sɛ seesei woanya ntease pa wɔ choroid a yɛkaa ho asɛm nnɛ no ho.

Kae sɛ wo retina no na ehu hann na ɛdan no ma ɛbɛyɛ nsɛnkyerɛnne a wotumi hu a wɔde kɔ w’amemene mu. Nea ɛbɛyɛ na wɔatumi ayɛ eyi no, retina no hia mogya kɛse a ɛkɔ so daa. Enti, wo choroid no ne mogya titiriw a ɛkɔ wo retina ne w’aniwa ntini mu. Choroid no nso boa ma wohwɛ hann a ɛkɔ w’ani so no so. Eyi ma ɛyɛ mmerɛw ma retina no sɛ ɛbɛyɛ saa hann no ho adwuma yiye.

Ebia wonnim choroid no yiye te sɛ aniwa no afã afoforo. Nanso ɛyɛ yɛn anisoadehu no fã a ɛho hia na ɛho hia yiye . Wo da biara da asetena mu no, nneɛma pii wɔ hɔ a wobɛtumi ayɛ de ahwɛ wo choroid akwahosan so - ne w’ani nyinaa. Enti, eye sɛ wubesusuw ho sɛ wobɛhwɛ w’ani so, ɛnte saa?

`Choroid, aniwa akwahosan, retina, aniwa ntini, melanin, aniwa mu nyarewa, aniwa mu nhwehwɛmu