I mit a fiah lo em ni? Keratometry test chungchang hi i zir chiang ang u.

Khawvel hi tlem a hlimthla ang maiin i inhriat fo thin em? Zanah i khalh lai hian i hmaa car light te chu a thim deuhin a lang em? A nih loh leh i glasses i hman lai pawhin i hmu chiang thei lo ang maiin i inhria em? Hei hi a chhan ber pakhat chu i mit pianzia a danglam deuh vang a ni thei. Vawiin hian test awlsam tak, hrehawm lo tak, i hriat chhuah theihna tur kan sawi dawn a ni.

Keratometry hi eng nge ni?

A hming hi a buaithlak deuhin a lang thei a, mahse a takah chuan a awlsam khawp mai. A awlsam zawngin, keratometry hi i mit chhunga mit (cornea) curvature, a nih loh leh a pianzia tehna test a ni.

Tunah chuan cornea hi eng nge ni tih i ngaihtuah mai thei. Kan mit hi camera tha tak angin han ngaihtuah teh. He camera hmaa transparent, thin layer hi cornea kan tih chu a ni. I phone-a camera lens chunga protective glass awm ang mai a ni. He cornea kaltlangin kan mitah hian êng a lut a. Chuvangin, mit hmuhna chiang tak neih theih nan he mit (cornea) pianzia hi a dik a pawimawh hle. Keratometry test hian chu shape chu a teh thin.

Engvângin nge he fiahna hi a pawimawh? Eng nge a hmuh ang?

He test hmanga hmuhchhuah tam ber leh awm tam ber chu astigmatism a ni . Hei hi thil awm dan tlangpui a ni a, mitdelna a thlen thin.

Hei hi awlsam zawkin i hrethiam ang u.

A tlangpuiin mit hrisel tak cornea hi baseball ang maia pianphung mawi tak a ni a, chuvang chuan mit chhunga êng lut chu hmun khatah a innghat a, chu chuan thlalak chiang tak kan hmu thei a ni.

Mahse astigmatism nei mi mitmeng (cornea) pianzia hi circle tling tak a ni lo. A sei deuh pawh a ni thei, rugby ball ang maiin. A nih loh leh, spoon hnunglam ang maiin a sir khatah a inher thei bawk. Chutiang a lo thlen chuan mit chhunga êng lut chu hmun khatah a focus lo va, hmun engemaw zatah a focus a ni. Chuvangin vision a blur a, images pawh a stretched angin a lang.

Chuvangin, keratometry test tum ber chu astigmatism i nei em tih chiang taka hriat a ni a, a awm a nih chuan eng chen nge i neih tih hriat a ni.

He test hi thil dang engemaw zatah pawh a pawimawh hle:

• Contact lens i bun hmain: I mit nena inmil tur contact lens thlan tur chuan i mitmeng tehna dik tak i hriat a ngai a ni.
• Cataract surgery hma: He surgery neih chhung hian mit chhungah artificial lens (IOL) dah a ni. Heng keratometry tehnate hi i mit nena inmil ber lens thlan nan a pawimawh hle.

He Keratometry test hi engtin nge an tih?

Hei hi test rang tak leh hrehawm lo tak a ni. I mit enfiahna pangngaiah pawh tih theih a ni. Chumi atan chuan ni hran i ruat a ngai lo.

Chumi atan chuan ‘Keratometer’ an tih hmanrua an hmang a. A hmasa berah chuan telescope te tak te ang mai a ni. Mahse, arsi hla tak takte a en lo va, i mit hnai tak takte a en zawk a ni. Test tih dan hi step by step in han thlir ila.

He test hian hlauhawmna leh that lohna a nei em?

Ni lo tak zet a ni. Hei hi 100% safe test a ni . Risk leh hrehawmna a thlen lo . Machine atanga êng lo chhuak chu a eng deuh mah se, i mit leh i mit a tichhe lovang.

Mahse thil tenawm tak pakhat a awm. Hei hi "disadvantage" tia sawi ai chuan, he test awmzia hriatna angin ngaihtuah rawh. Keratometry test hi i mit (cornea) tehna dik tak 100% a ni lo va, estimate tha tak a ni zawk.

A chhan chu awlsam takin ka sawifiah ang. Globe pakhat hi han ngaihtuah teh. Mawi takin a round a, a smooth bawk. Mahse kan Leilung hi chutiang chuan a hrual tak tak lo tih kan hria a, Himalaya tlang ang tlang sang tak tak te, Mariana Trench ang tuifinriat thuk tak tak te, leh ruam ang chi thil dang tam tak a awm tih kan hria. Tin, Lei pawh hi sphere famkim a ni lo. Mahse, globe hi Sri Lanka awmna leh America awmna hriatthiamna kawngah a pui hle a ni lawm ni?

Keratometry test pawh chutiang bawk chu a ni. Kan mit (cornea) pianzia a teh a, sphere ṭha famkim anga ngaih a ni. A nihna takah chuan kan mit hi sphere famkim a ni lo va, a pianphungah chuan danglamna tenau tak tak a awm a ni. Mahse astigmatism i neih leh neih loh rang tak leh dik taka hriat theihna hmanraw tangkai tak leh hlu tak a ni.

Tunlai hian mit lam doctor thenkhat pawhin test hmasawn zawk, corneal mapping ang chi te an hmang bawk a, chu chuan tehna dik zawk a pe thei a ni.

Heng keratometry chhiar (K chhiar) te hi engte nge ni?

He test result hi ‘K readings’ an ti a. Chungte tehna unit chu diopter an ti a .

Heng number leh details te hian hlauthawng suh. Hengte hi i doctor-in a hriatthiam theih nan a ni. Heng result te hi a en ang a, i mit a inthlak chhan dik tak chu a hre chhuak ang.

He K chhiar hian i doctor chu glasses, contact lens, a tul chuan surgery atana lens dik thlan kawngah a kaihruai ang.

Engtikah nge ka doctor ka hmuh ang?

I doctor chuan eng chen nge i mit enfiah tur tih a hrilh ang che. Chu schedule chu zawm a pawimawh.

Kan mit pianzia hi a pianphungah hun kal zelah a danglam thin a, chuvangin astigmatism level pawh a danglam thei a ni. Mahse, i mit hmuhnaah inthlak danglamna rang tak, langsar tak i hmuh chuan, a bik takin a hma aia a fiah lo zawk a nih chuan ngaihthah suh. Keratoconus ang chi natna, enkawl vat ngai chhinchhiahna a ni thei. Chuvângin, i mit hmuhnaah inthlâk danglamna rang tak, langsar tak i hmuh chuan i doctor pan nghâl rawh.