I mitmenga he phaw te tak te hi i hria em? Cornea chungchang hi han sawi ila!

Darthlalang atanga i mit i en hian a hma lamah glass ang maia lang chiang tak, curved tak a awm a ni lawm ni? Chu chu cornea kan tih chu a ni. Motor-a windshield ang chiah hian hei hi kan mit chhunga leivut leh hrik ang chi thil lut tur titawptu venhimna shield ang a ni. Tin, he mit (cornea) pianzia hi chiang taka kan hmuh theih nan a pawimawh hle bawk.

Cornea hi mit chhunga tui khata khat chamber (`anterior chamber`) hmaah a awm a. A bulah chuan iris leh pupil te a awm bawk. Mit a var, cornea vel a awm chu sclera an ti a. Cornea hi kan mit vengtu hmasa ber a nih avangin accident leh hliam vangin awlsam takin a chhe thei a ni. Mahse mak tak mai chu mitmeng hi a dam chak hle a, hliam tenau tak tak atang pawhin a dam thei hle.

Cornea layer hrang hrangte chu engte nge ni?

He mitmeng te tak te hian a chungah layer paruk (6) a inzawm khawm niin han ngaihtuah teh. Laminated glass ang bawkin heng layer te hian an thawk dun a, mit (cornea) a tichak a ni.

• Epithelium: Hei hi mit (cornea) pawn lam ber a ni. Wall ang maiin hna a thawk a, mit chhunga natna hrik leh leivut lut lo turin a veng a ni. He layer hi natna lakah a sensitive hle. Hetah hian kan vun aiin a let 300-600 velin pain receptor a nei tam zawk niin an sawi. Chuvangin bawlhhlawh tlemte pawh hian kan mitah tuar theih loh khawpa natna a thlen thei a ni. Chu sensitivity chuan kan mit a venghim a ni.

• Bowman’s layer: Hei hi collagen atanga siam layer chak tak a ni. Cornea chu a pianzia vawng reng turin a pui thin.

• Stroma: Hei hi mit (cornea) layer thuk ber a ni. Cornea a tichak mai bakah mit chhunga êng lut chu a refract a, retina-ah dik takin a focus thei bawk.

• Pre-Descemet's layer (PDL): Hei hi "Dua's layer" an ti bawk. Zirchianna atanga a lan dan chuan hei hi boruak pawhin a paltlang theih loh daltu chak tak a ni. Hei hi a takah chuan layer thar tak a ni a, kum 2013 khan hmuhchhuah chauh a ni.

• Descemet’s layer: Hei hi layer te tak te, elastic tak, mahse rin loh takin a chak hle. Mit chhung lam chhiat leh natna hrik laka venhimna kawngah a pawimawh hle.

• Endothelium: He layer hian mitmeng chhunga tui awm zat balance vawng rengtu a ni ber. Stroma hnathawh that theihna tura tui mamawh zat a control a ni.

Natna leh harsatna hrang hrang, mitmeng (cornea) a nghawng tam ber

Kan mit vengtu ni mah se, mit (cornea) hi natna chi hrang hrang, hliam, leh natna hrik kai theihna a ni bawk.

• Mit a vawt:Cornea pawn lam ber epithelium hian a hnathawh that theih nan mittui a mamawh a ni. Mittui hian mit a tithianghlim a, boruak atanga oxygen a lakluh theih nan a pui bawk. Mit vawt hian a na a, mit a tibuai thei bawk.

• Infection: Cornea chunglam a chhiatna a awm chuan natna hrik - virus, bacteria, fungi, leh parasite te pawh a tel - awlsam takin a lut thei a, natna a thlen thei bawk.

• Keratitis: Infection, accident, leh natna dang vangin mit (cornea) chu a hring thei a, a sen a, a na thei bawk. Hei hi keratitis an ti a.

• Hliam: Car windshield ang bawkin pawn lam thilin mit (cornea) a tichhe thei a ni. Hei hian abrasion, lacerations, leh ulcers a thlen thei a ni.

• Environment chhiatna: Khaw lum lutuk, lum lutuk, chemical (liquid emaw gas emaw), leh UV radiation te hian mit (cornea) a tichhe thei a ni.

• Structural Diseases (Dystrophies): Natna thenkhat chuan mit (cornea) pianzia leh insiam dan a tidanglam thin. Chungte chu `corneal dystrophies` an ti tlangpui. Keratoconus leh Fuchs’ dystrophy te hi chutiang natna pahnih a ni.

Heng natnate hi eng enkawlna nge ni?

Cornea lama harsatna awm dan azirin enkawl dan pawh a inang lo. I doctor chuan i dinhmun nena inmil ber tur enkawlna a ruat ang.

• Enkawlna awlsam: Mit a vawt lo emaw, a nuam lo emaw a nih chuan i doctor chuan mittui tlak dan awlsam ang chi thil a rawn rawt thei ang.
• Damdawi: Damdawi hi hman a ni a, a bik takin natna hrik ang chi thil atan hman a ni. Chungte chu mittui tlakna emaw, hriak emaw angin a awm thei a, i ei thin pill angin a lo thleng thei bawk.
• Mit patching: A chang chuan mit venna atan mit patch vuah turin an ti thei che a, cornea a dam hma loh chuan.
• Laser surgery: Mit dikna tur surgery chi khat. Hetah hian laser beam hmangin mitmeng (cornea) pianzia thlak danglam a ni. LASIK hi surgery chi hrang hrang hriat lar tak a ni.
• Mit surgery: Mit lam chhiatna siamthat nan emaw, damdawi lam dinhmun thenkhat siamthat nan emaw operation neih a ngai thei.
• Cornea transplant: Hun a kal zel a, cornea chu a thim emaw, light a ben tha thei lo emaw a ni thei. A nasat chuan mit chhia chu lakchhuah a, mit hrisel tak thlak a ngai mai thei.

Engtin nge i mit (cornea) chu accident laka i ven theih ang?

"Tihdam aiin invenna a tha zawk," an ti. Chu chu kan mit tan chuan 100% a dik a ni. Safety glasses emaw goggles emaw vuah hi mitmeng hi accident laka venhimna tha ber a ni. He thil tenawm tak hian second khat chhunga chhiatna lian tham thleng thei chu a veng thei a ni.

Hetiang hun lai hian safety glasses vuah ngei ang che:

• Machinery leh hmanrua hmanga hnathawh hunah: In lama kut hmanrua te te hman pawhin grinder emaw drill emaw ang chi thil hmanga hnathawh hunah a pawimawh hle.
• Huana hnathawh hunah: Lawn i sawh lai emaw, chainsaw i hman hunah emaw, lung te te, leivut, leh thlai chi hrang hrang te chu i mitah a thlawk lut thei a ni.
• Chemical i hman hunah: Inchhung faina hmanrua, bleach leh toilet cleaner te chu eng ang pawhin fimkhur takin hmang mah la, i mitah a la lut thei tho.
• Mei leh khaw lum lutuk hmanga hnathawh hunah: Meikhu leh mei atanga lumna lakah i mit venghim ang che.
• Inkhelh laiin: Infiamnaah ball tlan chak tak hmanga khelh, cricket, tennis, leh hockey te hi a ni.
• Ni êng tam lutuk i hmuh chuan: Tuipui kamah emaw, vur tlakna hmunah emaw i awm chuan tui leh vur atanga UV rays lo chhuak hian mit (cornea) a kang thei a ni. Hei hi photokeratitis an ti a . UV laka invenna tha tak nei sunglass hmang rawh.

I mitah thil a lut a nih chuan engtin nge i tih?

A pawimawh ber chu i mit chhungah bawlhhlawh emaw leivut emaw chi khat ang chi thil a lut a nih chuan hlauthawng lo tur a ni. Hetah hian tih tur leh tih loh tur thenkhat kan rawn tarlang e.

Heng symptoms te hi i neih chuan doctor pan nghal rawh!

Heng symptoms te hi i neih chuan ngaihthah suh. Doctor pan nghal rawh.

• Vision inthlak danglamna: double vision, blurred vision, distorted vision.
• Mit hmuhna hloh nghal mai.
• Mit chhunga thil awm (a hmuh theih emaw, hmuh theih loh emaw) tih hriatna.
• Mit na tak.
• Mit tui pek chhunzawm zel (epiphora).
• Eng en thiam lohna (photophobia).
• Mit sen emaw, a hring emaw.
• A mitmengah a vuak.
• Mit chunglama hliam hmuh theih, hrual emaw, hliam emaw.