A chang chuan hla tak board-a lehkha chhiar harsa i ti em? A nih loh leh chanchinbu emaw, lehkhabu emaw i chhiar hian lehkhate chu a hlim lo hle tih i hmu em? Zanah i khalh lai hian i hmaa car light vel chu streak i hmu em? Hengte hi i tan thil tawn tlanglawn tak a nih chuan nangmah chauh i ni lo. Hei hi Sri Lanka leh khawvel hmun hrang hranga mi maktaduai tam takin harsatna an tawh a ni. Chuvangin hei hi a awlsam ber leh tha ber chu eyeglasses hman hi a ni. Vawiin hian heng mittui tlak dan zawng zawng hi han sawi ila.
Heng mitmeng hi eng nge ni tak tak?
A awlsam zawngin, eyeglasses hi lens pahnih, frame-a dah, i hmaiah i bun a ni. An hna ber chu i mit hmuhna lama harsatna thenkhat siamthat leh khawvel chiang taka hmuh theihna tura puih hi a ni. Damdawi lam hawi chuan heng mitdelte hi ‘refractive errors’ kan ti a. Hei hian mit chhunga êng a luh dan leh retina a focus danah hian tihsual engemaw zat a awm tihna a ni. Glasses hian chu light pattern chu a siam tha thin.
Refractive error hi kan mit hmuh tam ber chi pali a awm a.
| Mit lama harsatna nei | A awlsam zawngin, eng nge thleng? |
|---|---|
| Hmuh theihna / Myopia | Lehkhabu emaw, phone emaw ang chi, i hnaih ber thilte chu chiang takin i hmu thei a ni. Mahse thil hla tak tak, bus chhinchhiahna emaw, kawngpuiah mi emaw ang chi chu a fiah lo hle niin a lang. Hei hi school naupangte’n blackboard-a thil an hmuh theih loh chhan pawh a ni thei. |
| Hmun hla tak atanga thlir theihna / Hyperopia | Hei hi a hmaa kan sawi tawh nen a inkalhin a ni. Hmun hla tak atanga thil awmte chu chiang takin i hmu thei a, mahse hnai tak atanga thil awmte, a bik takin lehkhabu emaw, chanchinbu emaw i chhiar hian chhiar a har a, lehkhathawn te pawh a fiah lo. |
| Astigmatism tih hi a ni | Hetiang dinhmunah hian thil hnai leh hla tak tak, eng emaw chen chu a fiah lo (blurred) i hmu thei a ni. Hetiang dinhmun chhinchhiahna tlanglawn tak chu light en hian arsi puak (starburst) a lo lang thin a, a bik takin zan lamah a ni. |
| Kum upat deuh deuhin Presbyopia (nearsightedness) a awm thin | Hei hi natna a ni lo va, kan tar chhoh zel a, kan mit chhunga lens hian a flexibility a hloh avangin natural condition a ni. Kum 40 hnuah a intan tlangpui a, hla tak atanga chanchinbu emaw lehkhabu emaw chhiar i tum a nih chuan hei vang pawh a ni thei. |
Engtin nge heng glasses te hian hna an thawh tak tak?
A awlsam khawp mai. I mit kha camera angin ngaihtuah rawh. Thil pakhat chu a atanga êng chhuak (light rays) kan mit a luh hian kan hmu a. Heng light rays te hi mit hmalam a transparent part cornea kaltlangin a kal hmasa a, chutah chuan mit chhunga lens kaltlangin a kal leh thin. Heng hmun pahnih hian camera lens ang maiin hna an thawk a, light chu bending-in mit hnung lama awm retina an tih screen-ah an focus a ni.
Refractive error nei chunga thil thleng chu he light bending hi a dik lo tih hi a ni. Light hian retina hma emaw hnung emaw ah a focus thin. Chutah chuan image blurry tak tak kan hmu thin.
Chuvangin eyeglasses hian a tih tur chu, mit chhunga êng a luh hmain, chu light rays-ah chuan ‘bend’ tlem a belh a, chu chuan mit chhunga retina-ah chiang takin a focus tir a ni. Thil tihsual siamthat ang mai a ni.
A châng chuan mit dinhmun a inang lo deuh avangin double vision a awm thei bawk. Chutiang hunah chuan he dinhmun siamthat nan hian special lens hman theih a ni.
Glasses lak hmain eng ang test nge tih tur?
Hei hi a pawimawh hle. Mit lama harsatna i hmuh chuan i tih hmasak ber tur chu mit enfiah hi a ni. Chumi atan chuan doctor thiam tak i pan tur a ni.
He exam chhung hian doctor chuan i:
- Hmuh theihna chiang tak
- Mit hriselna zawng zawng
An pahnih hian test an ni. "20/20 vision" tih thu hi kan hre vek tawh. Mit hrisel neiin a hmuh theih angin feet 20 vela hlaah thil i hmu thei tihna a ni. I mit chu chutiang aia tlem a nih chuan i doctor chuan a zat a teh ang a, a siamthatna tur lens i mamawh tur prescription chu a ruat ang.
Glass i vuah tawh a nih chuan he test hian chu glass power chu tunah chuan i mit tan a tha em tih emaw, thlak a ngai em tih emaw a enfiah bawk ang.
Eng chi eyeglass lens nge awm?
Lens chi hrang hrang a awm a, glass ang bawkin. I doctor chuan i mamawh dan azirin lens chi dik ber a rawn rawt ang che. A chi hrang hrang hi han thlir ila.
Main lens chi hrang hrang
| Lens chi hrang hrang | Hrilhfiahna |
|---|---|
| Single-vision lens hmanga hmuh theih | Heng lens te hian power inang an nei a. Chumi awmzia chu thil tum khat atan an hmang tihna a ni a, distance vision atan emaw near vision (reading) atan emaw hman an ni. |
| Multifocal lens hmanga siam a ni | Heng thiltihtheihnate hi lens khatah a awm a ni. Entirnan, mirror khatah hian distance vision atan power pakhat a awm a, near vision (reading) atan power dang a awm bawk. |
| Bifocals a ni | Hei hi multifocal chi khat a ni. Lens hian thiltihtheihna pahnih a nei a. A tlangpuiin lens chunglam chu distance vision atan hman a ni a, a hnuai lam chu near vision (reading) atan hman a ni. Heng hmun pahnih inthenna line hi lens-ah hian chiang takin a lang a. |
| Trifocals te pawh a awm | Hei hian lens khatah power pathum a nei a - distance atan, intermediate distance (computer ang chi), leh near (leh chhiar nan). Hetah pawh hian power hrang hrangte inthenna line te chu a lang chiang hle. |
| Progressive lens te a awm | Hengte hi bifocals nen an inang a, mahse a danglamna ber chu power hrang hrangte inthenna tur line hmuh theih a awm loh vang a ni. Lens chakna hi a chung atanga a hnuai lamah a inthlak zauh zauh thin. Hei hian i enna hlat zawng a zirin i lu chu sang emaw hnuai lam emaw tlem a tilt a, chiang takin i hmu thei a ni. Darthlalang pangngai ang mai a ni. |
| Lehkhabu chhiarna glasses | Hengte hi single-vision lens an ni a, near vision atan bik siam a ni. Presbyopia vei te hian lehkhabu chhiar nan an hmang ber a ni. Hengte hi a chang chuan counter atanga lei theih ni mahse, doctor hmuh leh mit enfiah hnua lak a tha ber. |
| Prism lens hmanga siam a ni | He lens chi bik hi mit inthlauhna avanga double vision enkawlna atan hman a ni. |
Lens chi hrang hrang specialized dangte
Hengte hi a chang chuan i prescription-a i dah belh theih tur feature angin a lo thleng thin.
- Sunglasses: Glasses vuah ngai reng reng i nih chuan i prescription sunglass chu i tan siamsak theih a ni. Chutiang chuan ni chhuahna hmuna i chhuah hunah glasses pahnih hran i mamawh tawh lovang.
- Blue light-blocking glasses: Hengte hian computer leh smartphone ang chi screen en reng chunga hun tam tak hmang thinte tan mit hahna leh hahna a tiziaawm thei a ni. I glass pangngaiah hian blue-blocking coating i dah thei bawk.
- Photochromic lens: Hengte hi "auto glasses" kan tih chu a ni. Ni chhuahna hmuna i chhuah chuan heng lens te hi a thim nghal vek a, sunglass ang mai a ni a, in chhunga i lo luh chuan lens pangngai, transparent takah an chang leh thin.
Glass vuah hian side effect a nei em?
Dik tak chuan eyeglasses hi hmanraw him tak a ni. Side effect na tak tak a awm lo tluk a ni. Mahse, i hak hmasak ber emaw, power i thlak emaw hian harsatna tenau thenkhat a awm thei.
- Lens-a insiamrem harsa: I mit chu damdawi thara insiamrem theih nan ni engemaw zat a la ngai thei. Lens complex thenkhat, progressive ang chi te hi a insiamrem theih nan kar khat emaw kar hnih emaw a ngai thei. Hemi hun chhung hian i lu a hah deuh mai thei. Hei hi thil pangngai a ni. Mahse, a lungawi lohna a awm reng chuan doctor pan leh rawh.
- Frame discomfort: I hnar emaw beng emaw-ah frame kha i tight tih i hriat chuan tlem tal i siamrem thei. Hei hi glasses i lei na hmunah ngei pawh i ti thei ang.
- Mit natna leh lu na:Glass thar i vuah hnu ni hmasa berah chuan mit na leh lu na i nei thei a, a bik takin lehkha chhiar emaw, computer-a hnathawh emaw hian i hmu thei a ni. Hei hi ni engemaw zat chhungin a bo tlangpui. Mahse, i glasses hlui i bun laiin heng symptoms te hi i tawng a nih chuan i mit a danglam tih chhinchhiahna a ni thei. Tichuan i mit i check ngei ngei tur a ni.
Engtin nge ka glasses hi ka enkawl ang?
I glasses hi i mit ang bawka hlu a nih avangin uluk taka enkawl a ngai a ni.
- Hman loh hunah: A bula hard-shell case-ah dah fo ang che. Hei hian tlak leh hliam lakah a venghim a ni.
- A tihfai hunah:
- A hmasa berin tui tlem nen hnim la. Tichuan, darthlalang tihfai nana siam spray emaw, sahbawn tui tlem emaw hmang la.
- Microfiber puan hmangin phihfai tur a ni.
- I lens te chu tissue, toilet paper, paper towel hmangin phihfai ngai suh. An chhunga fiber te tak te te hian lens te chu a ti hrual thei a ni.
- I thawmhnaw emaw, i sari emaw, i kawr emaw hmangin i lens chu phih suh. Chu chu mi tam takin an tihsual a ni. I thawmhnaw chunga leivut awm hian lens a tichhe thei a ni.
Engtik hunah nge doctor ka hmuh ang?
A tlangpuiin mi zawng zawng tan kum khatah vawi khat tal, kum hnih danah vawi khat tal mit enfiah thin hi a tha hle. Damdawi lam harsatna dang, zunthlum emaw, thisen sang emaw i neih chuan i mit chu doctor-in a rawt angin interval khatah i enfiah tur a ni.
Tin, a hnuaia symptoms te hi i hriat chuan doctor pan nghal rawh:
- I mit hmuh danah inthlak danglamna rapthlak tak i neih chuan.
- I mit chu a chau a, a rit reng a nih chuan.
- Lu na i neih fo chuan.
- Mit na a awm chuan.
- Eng êng tak (light sensitivity) en harsat.
Online-a glasses lei hi a man tlawm zawk em? I hriat tur thilte
Tunlai hian thil tam tak ang bawkin online hmangin glasses order theih a ni. A chang chuan a man a tlawm thei bawk. Mahse chutianga i tih chuan heng thilte hi fimkhur rawh.
A thupui ber: Online-a mit enfiahna app emaw website emaw engzat pawh doctor-in mit enfiahna kimchang nen a inmil thei lo. I mit hriselna dik tak hrethiam tur chuan doctor pan a pawimawh hle.
- Tuna damdawi hman mek nei rawh: Online-a order tur chuan doctor hnen atanga damdawi dik tak i neih a ngai a ni. Kum khat aia upa a nih chuan a hun tawh lo mai thei.
- Pupillary Distance (PD) hriat tur: 1.1.Hei hi i black circle pahnih inkar hlat zawng a ni. He tehna hi i glasses fit dik nan a pawimawh hle. I mit i enfiah hunah i doctor emaw optician emaw hnenah hei hi teh turin hrilh rawh.
- Warranty enfiah: Online-a thil i lei dawnin frame leh lens-te warranty leh terms and conditions uluk takin chhiar thin ang che.
Eyeglasses hi i nunah awlsamna leh chiang tak tak thlentu thil a ni. I mit lamah harsatna tê tê pawh i tawk a nih chuan ngaihthah suh la, vawiinah doctor rawn la, thurawn la rawh. I mit hriselna atana investment lian ber i tih theih tur a ni ang.
Take-Home Thuchah a ni
- Hmun hla tak emaw, hnai emaw hmuh harsa i tih a, lu na i neih emaw, mit na tak i neih emaw chuan ngaihthah suh. Mitdelna chhinchhiahna a ni thei bawk.
- Glasses i lei hmain doctor thiam tak hnen atangin mit enfiahna kimchang neih hmasa phawt ang che . I mit hmuhna siam that bakah mit natna dang hriatchhuahna kawngah a pui thei bawk.
- I mamawh leh nunphung nena inmil ber lens chi (e.g. Bifocal, Progressive) thlang turin i doctor nen inbia ang che.
- Glass thar hman thiam nan ni engemaw zat hun hman hi thil pangngai a ni. Hrisel lohna a awm reng chuan damdawi lam thurawn zawng leh rawh.
- I glasses te hi uluk taka tihfai leh him taka dahin a dam chhung hi i ti rei thei a ni.
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