Doctor hnenah i mit enfiah turin i kal tawh ngai em? I kal lai khan chair-ah an thut tir che a, a hla deuhah bangah chart lian tak an tar che a, a chunga lehkha awmte chu pakhat hnu pakhat chhiar turin an ti che tih i hre reng mai thei. Letter chunglam atanga letter te ber thlengin line khat hnu line khatin i chhiar tur a ni. A châng chuan mit pakhat i khar a ngai a, chutah chuan mit dang chu i khar a ngai ṭhin... Chu chu kan hriat vek test awlsam tak chu a ni a, chu chu damdawi lam chuan Visual Acuity Test an ti a ni. A awlsam zawngin, i mit chu engtiang chiahin nge a fiah tih a enfiah a ni . Vawiin hian he thu hi chipchiar deuhin kan sawi dawn a ni , i thianpa nen in inbia ang maiin.
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He Visual Acuity Test hi eng nge ni tak tak?
Visual Acuity tih awmzia chu "mit fiah" emaw "mit fiah" emaw tihna mai a ni. Hmun hla tak atanga shape leh details chiang taka i thliar hrang theih dan a kawk a ni. Kawngpuiah i kal lai hian, a hla deuha chhinchhiahna pakhata lehkha ziakte chu chiang takin i chhiar thei em? Bus chhunga number chu hla tak atangin i hmu thei em? Chutiang thil chu i mit hmuhna a\angin a innghat a ni.
Chuvangin he test hi doctor tan chuan hun kal zelah i mit a danglam em tih hriat theihna kawng awlsam ber leh awlsam ber a ni. Mit enfiahna atana step hmasa ber leh pawimawh ber a ni.
Engvângin nge he fiahna hi a pawimawh êm êm?
He test awlsam tak hian kan mit lama harsatna awm fo tam tak chu a hmain a hmuchhuak thei a ni. A bik takin, refractive errors tia hriat harsatna lian pali hriatchhuah nan hman a ni.
- Nearsightedness / Myopia: Hei hi i hnaih ber thil chiang taka i hmuh theih laiin, hla taka thil awmte chu a hlimthla a ni. Entirnan, lehkhabu chhiar chu a tha a, mahse TV en emaw, kawngpuiah bus-a number hmuh emaw chu a fiah lo.
- Farsightedness / Hyperopia: Hei hi a hmaa kan dinhmun nen a inkalhin a ni. Thil hla tak takte chu chiang taka hmuh theih ni mah se, a bul hnaia thil awmte chu, a bîk takin lehkhabu emaw, chanchinbu emaw chhiar emaw, phone en emaw hian a fiah lo hle niin a lang. Mit chu a chau hle niin a lang.
- Astigmatism: Hei hi a danglam deuh deuh a ni. Mit hian êng a focus ṭhat loh avângin, a hnai leh hlaa thil awmte chu a chhe deuh, a inzawm khawm emaw, a hlim lo deuh emaw angin i hmu thei a ni. Hei hi a lan chhuah dan pakhat chu zan lama lirthei khalh laiin headlight chhehvela streak awm hi a ni.
- Presbyopia: Hei hi natna a ni lo. Kum 40 kan tlin hnua kan mit lens-in a flexibility a hloh huna lo awm thin natural condition a ni a, hei hian thil hnai tak, chanchinbu en emaw, hrui khih emaw ang chi hmuh a ti harsa bawk.
Heng harsatna lian pali bakah hian he test hi a chang chuan color blindness ang chi condition zawngna atana step hmasa ber atan hman theih a ni.
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Check Availability →Visual acuity test hi chi hrang hrang a awm a.
Letter awmna chart hi kan hre vek a, mahse a takah chuan he test hi tih theih dan kawng engemaw zat a awm. Kum leh mamawh dan azirin a inang lo.
| Test neihna tur hming | A awlsam zawngin... |
|---|---|
| Snellen Mit Test Chart a ni | Hei hi kan hriat vek classic method a ni. Wall-a chart chu a chung atanga a hnuai lam thlengin a te deuh deuh a. Vision hi i chhiar theih line tenau ber hmanga teh a ni. Tunah chuan hmun thenkhatah chuan hei hi bang chungah project a ni ta. |
| Random E Chart hmanga siam a ni | Hei hi Snellen chart nen pawh a inang hle. Mahse heihi chuan ‘E’ tih letter chauh a nei. Row tinah chuan E letter chu kawng hrang hrangah a inher a, chunglam, hnuai lam, dinglam leh veilam te a ni. Hei hi naupang tê tê lehkha chhiar thiam lo, emaw, ṭawng thiam lo emaw pawhin a ti thei a ni. Letter ‘E’ ke pathum nei sir lam chu kawhhmuh mai rawh. |
| Pinhole hmanga mit hmuhna test | Hei hi nearsightedness ang chi condition dik taka hriat theih nan tih a ni. Hetah hian, khur te tak te emaw, khur engemaw zat emaw nei device (paddle) pek i ni. Chu khur chu en la, chart chu chhiar turin an ti che a ni. Hei hian mit chhunga êng lut chu control-na atan a pui a, mit lama harsatna chu eng nge ni tih chiang takin a hriat theih bawk. |
| Naupangte tan test (Cardiff Test) 1.1. | Ngaihtuah teh, engtin nge nausen te tak te lehkha chhiar thiam lo mit i check thin?? Hetiang hunah hian lehkha hmang lovin, rannung, lirthei leh in lem chi hrang hrang awmna chart an hmang thin. Doctor chuan thlalak te chu a entir a, naute chu eng nge ni tih a zawt a. Hei hian naute mit hmuhna level hriat theihna a pe a ni. |
Hei hi test hnathawh dan dik tak chu a ni:
Hei hi thil awlsam tak a ni. Hengte hi a tlangpuiin a hnuaia step te hi a ni:
1. Distance: Chart awmna atanga feet 20 vel a hlaah chair-ah thut emaw, ding tir emaw i ni ang.
2. Mit pakhat khar: A dawtah chuan doctor chuan mit pakhat chu i kut emaw, a kaihhnawih hmanrua te tak te hmanga khar turin a hrilh ang che. I kut zungtang atang chauhvin i peek thei lo a ni lawm ni?
3. Letter chhiar dan: Tunah chuan chart chung bera letter lian ber, hnuai lam atanga hawrawp chhiar turin an ti che a.
4. Identifying the Limit: Letter te chiang taka i chhiar theih lohna hmun i thlen thlengin i chhiar chhunzawm zel a, a blurry ta a ni.
5. Mit dang test: Mit pakhat a zawh chuan hawng la, mit dang kha khar la, a tir atang khan test nawn leh rawh.
A pawimawh ber chu hawrawp te emaw, a hring emaw a nih chuan mit khap lo leh chhiar tum loh hi a ni. Chutianga i tih chuan i mit hmuh dân dik tak i hmu thei lo vang. Hei hi exam anga ‘pass’ ngai thil a ni lo. A pawimawh ber chu dik takin i doctor hnenah i hmuh dan hrilh hi a ni.
Glasses emaw contact lens emaw i bun tawh chuan i doctor hian he test hi vawi hnih a ti thei ang.
- Glasses tel lo chuan: I natural vision (uncorrected vision) teh rawh.
- Glasses vuah: Tuna i glasses hian i mit a siam that dan enfiah rawh.
Results hian eng nge a sawi? Hindsight chu 20/20...
Test zawh chuan i mit hmuh chu fraction-ah report a ni. "20/20 vision" thawnthu hi i hre tawh ngei ang. Movie-ah chuan, "A vision hi a famkim a, 20/20" tiin an sawi thin.
Hemi awmzia hi a awlsam khawp mai.
20/20 vision tih awmzia chu mit hrisel pangngai nei mi pakhatin feet 20 vela hlaa chiang taka a hmuh theih thil chu feet 20 vela hlaah pawh chutiang bawka chiang taka hmuh theih a ni tihna a ni.
I vision chu 20/40 a ni ang tih han ngaihtuah teh. Chumi awmzia chu mi pangngaiin feet 40 vela hlaa a hmuh theih thil chiang taka hmuh tur chuan feet 20 vel a hnaih a ngai tihna a ni. Hei hian i distance vision chu average hnuai lam a ni tihna a ni.
Tin, i mit chu 20/15 a nih chuan i mit chu a tlangpui aiin a fiah zawk tihna a ni. Mi pangngaiin feet 15 atanga a hmuh tur chu feet 20 atanga chiang takin i hmu thei.
Mahse hre reng ang che, mi tam zawk hian siamthat ngai lovin 20/20 vision an nei lo. Chu chu thil pangngai a ni. Test zawhah i doctor chuan i mit hmuhna siamthat nan i tih tur a hrilh ang che. A tam zawkah chuan glasses emaw contact lens emaw hman tur a ni ang.
Visual Acuity Test hi i mit enfiahna kimchang atanga a then pakhat chauh a ni. Hemi hnu hian doctor chuan i mit pressure, i mit chhunga nerve te, leh thil dang tam tak chu instrument dang (e.g., slit lamp) hmangin a enfiah ang.
Take-Home Thuchah a ni
- Visual Acuity Test hi a awlsam em em a, a na lo hle a, mahse a pawimawh em em a, i mit a fiah dan tehna a ni.
- Hei hian mit natna tlanglawn tak tak, hnai taka hmuh theih leh hla taka hmuh theih lohna te hriat hmasakna kawngah a pui hle.
- Test neih chhung hian doctor hnenah i hmuh danah rinawm takin sawi rawh . I mit khap suh la, harsa takin chhiar tum rawh. Hei hi ‘pass’ ngai exam a ni lo.
- Lu na, mit nasat, mit hmuh lohna ang chi symptom i neih chuan doctor pan ngei ngei tur a ni a, i mit enfiah tir ngei ngei tur a ni.
- Mit hrisel taka vawn reng tur chuan mit enfiah fo a pawimawh hle. Nu leh pa kan nih angin kan fate mit hmuh dan hi kan ngaihtuah reng tur a ni.
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