Mit Chhunga Khawvel: Kan Hmuh theihna Nunna Petu Choroid chungchang hi i zir ang u

Kan mit hi super camera ang maia hnathawh dan hi i ngaihtuah ngai em? Kan thil hmuh zawng zawng, chu chu rawng, eng, pianzia, heng zawng zawng hi second tlemte chhungin thluaka thawn chhuah vek a ni a, he khawvel hi kan hmu thei ta a ni. He mit te tak te chhungah hian kan mit hmuhna atana pawimawh tak, mi huaisen hriat tlemte a awm a, mahse kan sawi vak lo. Chu chu ‘Choroid’ kan tih chu a ni. A hming hi a mak deuh viau nachungin a hna hi a pawimawh hle. Chuvangin vawiin hian he thu hi awlsam tak leh ngilnei takin i sawi dawn nia.

A awlsam zawngin, he choroid hi eng nge ni?

Kan mit hi layer thum atanga siam ball a ni ang tih han ngaihtuah teh. A lai layer chu uvea an ti a. Chu middle layer-ah chuan choroid hi a pawimawh hle. A hna ber chu thisen pek a ni a, chu chu kan mit hmuhna atana pawimawh tak tak, mit peng pawimawh dangte mamawh chawmna a ni. Hei bakah hian mit chhunga êng lut zat control-na atan a pui bawk a, mitmeng chiang tak min pe bawk.

Choroid hnathawh lian ber pahnih chu engte nge ni?

Choroid hian kan mit tana service a pek hi hmunpui pahnih ah then theih a ni.

1. Thisen pek dan

Hei hi choroid hnathawh pawimawh ber leh bulpui ber a ni. Khawpui pakhata tui leh electric pe chhuaktu main power plant ang a ni. Kan mit chhunga retina leh optic nerve te hi factory pahnih, non-stop-a hnathawk ang mai a ni. Thluak lamah signal an thawn reng avangin tissue dang aiin thisen leh ei leh in an mamawh tam zawk a ni.

Chuvangin, he choroid chhungah hian thisen kalna kawng tha tak tak network a awm a, chu chu a chungah a inzawm khawm a ni. He thisen kalna kawng hmang hian retina leh optic nerve te hian oxygen leh nutrients supply chhunzawm zel an dawng thin. He supply hi tlem tal pawh tihtlem a nih chuan kan mit hmuhna hi nasa takin a tichhe thei a ni.

2. Eng (Light Absorption) a ni

Hei hi hriat tlemte, mahse pawimawh tak, function a ni. Recording studio bang-a sound echo tihtawp nan foam dum, porous tak tak, a inthuam thin chu i hmu tawh em? Chutiang chiah chuan mit chhunga choroid hian a ti thin.

Kan vun rawng dum pe theitu pigment melanin , tih hi i hre tawh mai thei. He melanin hi choroid-ah pawh a tam hle. Melanin hi vunah hman a ni a, ni atanga ultraviolet rays tha lo laka inven nan hman a ni.UV rays hi a hip lut a, vun a venghim a ni. Mit chhungah hian he melanin hian êng lo lut chu a tul lova mit chhunga a darh loh nan a veng a ni.

He choroid hi khawiah nge a awm?

Choroid hi kan mitmeng hmun thuma ṭhena hmun hnih hnung lamah a awm a. A awlsam zawngin, kan mit pawn lam bang dum (sclera) leh mit chhung lam ber, retina -te inkarah a awm a ni . Sandwich layer lai tak ang mai a ni.

Hei hi membrane te tak te tak a ni. Chu chu, kan print tlangpui A4 sheet ang maia thuk chauh a ni tihna a ni. Mahse chu thickness te tak te chhungah chuan ka sawi tawh thisen kalna kawng network lian tak chu a awm a. A châng chuan kan vunah birthmark kan neih ang bawkin he choroid hian birthmark (nevi) a nei thei bawk. Chûngte chu pâwn lam a\angin kan hmu thei lo. Hengte hi mit lam doctor-in mit a enfiah chauhvin hmuh theih a ni.

Eng dinhmun nge choroid hi a nghawng thei?

Kan taksaa thisen kal dan tichhe thei thil tam tak, inflammatory diseases te pawhin choroid hi a nghawng thei bawk. A chhan chu thisen kalna atanga siam vek a nih vang a ni. Condition langsar tak tak hmuh theih thenkhat chu:

• Albinism: Genetic condition a ni a, vun leh mit a melanin pigment a tihziaawm. Hetianga melanin tlakchhamna hian mit hian eng a tuar thei lo (photophobia) a, mit a tichhe bawk.
• Congenital conditions: Entirnan, choroideremia ang chi conditions hian retina a tichhia thei a.
• Diabetes-related retinopathy: Zunthlum hian mit chhunga thisen kalna kawng a tichhe thei a, chu chuan choroid a nghawng thei bawk.
• Macular degeneration: A bik takin ‘wet’ type-ah chuan choroid-ah thisen kalna kawng thar, chak lo tak tak a lo thang lian a, chu chuan mit a tichhe thei a ni.
• Mit cancer: Cancer, a bik takin mit chhunga melanoma hi choroid-ah a awm thei.
• Mit ischemia: Mit-a thisen pek that lohna, mit natna (eye stroke) ang chi.
• Glaucoma: Mit a pressure sang chuan optic nerve leh retina a tihchhiat chuan choroid pawh indirect-in a nghawng thei bawk.
• Mit hliam a awm.
• Inflammatory conditions: Mit chhung lam natna leh natna hrik awm, uveitis emaw chorioretinitis emaw ang chi.

Engtin nge choroid-a harsatna awm chu i hriat theih ang?

Choroid-a harsatna a awm chuan kan mit hmuhna a nghawng nghal vek a ni. Chuvang chuan mitthla lama inthlak danglamna eng pawh hi ngaihven a pawimawh hle.

Chutiang dinhmun hriat theih nan eng test nge tih thin?

Mit lam doctor i hmuh chuan i natna lan chhuah dan an zawt ang a, i mit an enfiah ang. Choroid-a harsatna an rinhlelh chuan a hnuaia test te hi an ti thei ang:

• Visual acuity test: I mit hmuhna fiah dan tehna general test a ni.
• Visual field test: I field of vision-ah harsatna a awm leh awm loh enfiahna (i lu ti che lovin eng chen nge i hmuh theih ang) tih test a ni.
• Slit lamp exam: Hetah hian doctor chuan i mit chhung lam chu microscope ang chi hmanraw bik hmangin uluk takin a enfiah thin.
• Retinal imaging tests: Choroid leh retina inzawmna avang hian retina enfiah hian choroid chungchang pawh a hriat theih bawk.
• Fluorescein angiography: Kut chhunga thisen kalna kawng pakhatah dye bik an inject a, mit chhunga thisen kalna kawngte thlalak an la thin.
• Optical Coherence Tomography (OCT): Hei hi mit chhung lam cross-section scan lak ang a ni. Mit layer thickness leh swelling a awm leh awm loh a check thei bawk.

Choroid nena inzawm natna enkawlna tur engte nge ni?

Vawi tam tak chu choroid hi direct-a enkawl ai chuan a nghawngtu dinhmun hnuaia awm chu enkawl a ni. Chumi awmzia chu a chhan enkawl a nih chuan choroid dinhmun pawh a tha zawk tihna a ni. Natna a zirin enkawl dan pawh a inang lo thei hle.

I dinhmun azirin enkawlna dang i mamawh thei a, chu chu i doctor chuan chipchiar takin a hrilhfiah ang che.

Engtin nge choroid leh mit hriselna kan vawn that theih ang?

Kan mit hi thil hlu tak a ni. Chuvangin venhim kan tum vek tur a ni. Mit zawng zawng hriselna vawng reng turin thil engemaw zat i tih theih a, choroid pawh a tel.

• Mit enfiah fo rawh: Glasses i vuah emaw i vuah lo emaw, kum khatah vawi khat tal mit doctor hnenah i mit enfiah tir a pawimawh. Chutiang chuan harsatna eng pawh chu symptoms a lan hmain hriat theih a ni.
• I mit venhim: Welding i tih emaw, chemical hmanga hna i thawh emaw, leivut awmna hmuna hnathawh i nih chuan safety glasses/goggles i vuah ngei ngei tur a ni.
• Meizial leh zuk leh hmuam hman loh tur: Meizial zu leh chewing hian kan circulatory system a tichhe nghal vek a ni. Choroid hi thisen kalna kawng layer a nih avangin meizuk hian direct-in a tichhe thei a ni.
• Natna rei tak enkawl: Diabetes Mellitus leh Hypertension ang chi natna i neih chuan i doctor thupek angin uluk takin enkawl rawh. Heng natnate hi kan thunun loh chuan mit chhiatna hi a na hle thei a ni.
• I hriselna zawng zawng enkawl rawh: Ei leh in inthlau tak ei te, taksa rihna hrisel tak neih te, exercise neih fo te hi i mit tan chauh ni lovin, i taksa pum tan pawh a tha hle.

Choroid hi kan mit a ngawi reng a, mahse a pawimawh hle. Kan vision-ah nunna a pe a, khawvel hi chiang taka kan hmuh theih nan min pui bawk. Chuvangin, chu chu hriat chian a, kan mit enkawl hi kan mawhphurhna a ni.