I hmalam i en nghal pawhin i chhehvel i hmu thei a ni lawm ni? Peripheral vision chungchang hi han sawi ila.

Kawngpuiah i kal a, a sir atanga motor rawn kal i hmuh chuan i ding nghal ngai em? A nih loh leh pindan pakhatah thuin hmalam i hawi a, i mitmeng atanga mi pakhat lo chhuak i hmu ngai em? Chu chu peripheral vision kan tih chu a ni. He theihna hi kan nitin nunah kan inhriat chian lohvin kan hmang vek a ni. Chuvangin, vawiinah hian chipchiar deuhin han sawi ila.

Peripheral vision chu eng nge ni?

A awlsam zawngin, i lu tiche lovin hmalam i hawi nghal vek chuan, a sir lam, chunglam leh a hnuai lam i hmuh zawng zawng hi i peripheral vision-a tel vek a ni. Hei vang hian "i mit kil atanga hmuh" kan tih vang a ni.

Thil pakhata direct-a i ngaihtuah hian i hmuh thin chu i central vision an ti a . He vision hi a chiang ber leh fiah ber a ni fo thin.

Lehkhabu i chhiar lai han mitthla teh. I mit chu thuziak lam a ni vek. Chu chu i vision bulpui ber a ni. Mahse, chutih rual chuan lehkhabu piah lam thil, dawhkan chunga tui bottle emaw, mi kal pelh emaw ang chi chu i hmu thei lo. Chu chu peripheral vision a ni.

Engvângin nge he inlârna hi kan tân a pawimawh?

Visual acuity hi kan nitin hnathawhna atan bakah himna atan a pawimawh hle.

Car i khalh lai han mitthla teh. Kawngpui lam chu i hawi nghal vek a ni. Mahse i peripheral vision vang a ni a, a sir lehlamah lirthei lo kal leh kawngpui zawh mipuite chu i fimkhur thei a ni. Chutiang bawkin cricket batsman pawhin ball vuaknaah a rilru a pek laiin, he vision avang hian fielder-te awmna hmun tur ngaihtuahna a nei a ni. He vision avang hian i kal laiin a sir lama thil i tawk loh nan a pui bawk.

Mit peng engte nge he hmuh theihna hi pe?

Kan mit chu camera ang mai a ni. Mit chhungah, hnung lamah, retina tih screen a awm a. Chutah chuan êng man thei cell maktaduai tam tak a awm a. Kan thil hmuh thlalakte hi he screen-ah hian record a ni.

• Retina lairil lama awm, leh mit hmuhna fiah ber leh chiang ber min petu chu macula an ti a.
• A lai takah chuan hmun sensitive tak tak fovea an tih chu a awm a . Chuta tang chuan kan central vision a lo chhuak a ni.

Chuti a nih chuan khawi atanga lo chhuak nge peripheral vision? Retina lairil, macula leh a chhehvel atanga lo chhuak a ni. Chu hmunte chuan light-sensitive cells nei mah se, fovea angin sharp vision an pe thei lo. Chuvang chuan i chhehvela thil awmte chu a laiah a awm angin a chiang lo.

I mit i hmuh loh chuan eng nge thleng ang?

Hetiang dinhmun, i chhehvel hmuh theihna i hloh a, hmalam panna dik tak chauh i hmuhna hi tunnel vision an ti a ni . Paper phek pakhat hrual chhuakin, chuta tang chuan khawvel chu i thlir ang tih han mitthla teh. Chutiang chu a ni. A sir lehlamah engmah i hmu thei lo. Hei hi dinhmun hlauhawm tak a ni thei a, nitin hna thawh a harsat em avangin, a bik takin lirthei khalh leh kea kal a harsa hle.

I mit kil atanga thil hmuh mai mai ang maia inhriat hi thil pangngai a ni em?

A châng chuan i mit hmaah thread ball te te, black dots emaw, spider web emaw ang chi thilte chu i hmu thei bawk. Hengte hi (Eye floaters) kan ti thin . Kan tar chhoh zel chuan kan mit chhunga jelly ang chi (Vitreous Humor) chu a lo tlem deuh deuh thin. Tichuan, a chi te te chu a inthen a, floater angin a lang ta a ni. A châng chuan, êng êng êng , êng ang maia lang pawh i hmu thei bawk. Hengte hi a tlangpuiin a hlauhawm lo.

Mahse, thil awm tak tak lo—a lem, êng, a nih loh leh line ang chi—i hmuh reng chuan ngaihtuah tûr a ni.

• Hallucinations a ni mai thei .
• A nih loh leh, Charles Bonnet syndrome ang chi dinhmun a ni thei a, chutah chuan mitdel tak takte chuan thil awm lo an hmu thin.

Heng symptoms te hi i tawng fo a nih chuan, a hma aia tam i hmuh chuan mit lam doctor pan nghal a, i mit enfiah tir a tha ber. Mahni chauha rinhlelh ai chuan doctor hnen atanga thil thleng dik tak hriat hi a pawimawh zawk hle.

Engtin nge he vision hi i test thin?

Mit doctor i pan chuan i peripheral vision a check ang. Test pakhat a awm a , chu chu Visual Field Test an ti a . I tih tur chu i lu tichhe lovin hmun khatah i en reng mai tur a ni. Tichuan i chhehvel atanga light lo chhuak i hmu thei em tih an zawt ang che. Hei hi test awlsam tak, hrehawm lo tak a ni. Hei hian eng chen nge i hmuh theih tih leh mit lama harsatna i neih leh neih loh a hriattir ang che.

Engtin nge i mit vel chu mit hmuhna tha tak i neih reng theih?

Kan mit hi thil hlu tak a nih avangin kan mit a hrisel theih nan thil engemaw zat kan tih theih a awm.

• Mit enfiah fo: Kum khatah vawi khat tal mit lam doctor hnena enfiah tir a pawimawh hle a, a bik takin kum 40 i tlin hnuah.
• Nun hrisel: Exercise tha tak leh ei leh in inthlau (a bik takin thei, thlai, leh sangha) ei hi a tha hle.
• Taksa rihna thunun: Natna, zunthlum leh thisen sang, thau lutuk avanga thisen sang te pawhin mit a nghawng thei bawk.
• I mit venghim rawh: Ni chhuahna hmuna i chhuah dawnin sunglass tha tak ha la. Hei hian i mit chu UV rays tha lo lakah a venghim ang.

Mit lama harsatna i neih chuan doctor nen sawipui thin ang che. A châng chuan mit exercise bik (vision therapy) hian i mit a ti ṭha thei a ni.