Wetin na yu vishɔn? Lɛ wi tɔk bɔt am simpul wan!

Wi ɔl de si ɛn ɔndastand dis fayn fayn wɔl wit wi yay, nɔto so? Jɔs tink bɔt, frɔm di tɛm we wi wek na mɔnin te wi go slip na nɛt, ɔmɔs tin dɛn wi kin si? Dis we aw pɔsin kin ebul fɔ si ɛn ɔndastand tin dɛn kin kɔl am vishɔn . I nɔ jɔs bi simpul tin, na tin we rili wɔndaful. So tide, lɛ wi tɔk bɔt wetin na vishɔn, aw i kin apin, ɛn aw fɔ kia fɔ wi yay.

Wetin rili na vishɔn?

Fɔ tɔk am simpul wan, vishɔn na di we aw yu yay ɛn yu bren de wok togɛda fɔ yuz layt we de kɔmɔt frɔm di tin dɛn we de rawnd yu fɔ mek yu ebul fɔ si tin dɛn. Na wan pan wi fayv men sɛns dɛn. Bɔrku pipul dɛn kin ɔndastand ɛn no di wɔl tru dis sɛns fɔ si.

Aw dis tin we dɛn kɔl vishɔn kin apin? I rili wɔndaful!

Vishɔn kin bigin we yu yay no layt, chenj am to nerve signal, ɛn sɛn am to yu bren tru yu optik nerves . Dɔn di bren kin tek dɛn sayn dɛn ya, ɛksplen dɛn, ɛn tɔn dɛn to di pikchɔ dɛn we yu de si. I tan lɛk se i kɔmplikt, nɔto so? Mek wi brok am dɔŋ smɔl.

Yu yay: Dem laik tu smol smol kamera?

Yu go mɔs dɔn yɛri bɔku tɛm pipul dɛn kin kɔmpia di yay to kamɛra. Bɔt i rili bi di ɔda we. Kamɛra na wan tin we dɛn mek lɛk mɔtalman yay.

Imajin wan kamɛra we gɛt lens we de fos layt pan wan spɛshal sɛns we de insay di kamɛra. Da sɛns de kin chenj di layt to ilɛktrik signal. Dɔn wan smɔl kɔmpyuta we de insay di kamɛra kin chenj dɛn signal dɛn de to pikchɔ. Yu kin kɔntrol di we aw kamɛra de pe atɛnshɔn. Insay sɔm kamɛra dɛn, yu kin kɔntrol bak ɔmɔs layt de hit di sɛns.

Yu yay dɛn gɛt lens bak. Dɛn lens ya de fos layt ɛn dayrɛkt am to di retina, we de na di bak pat pan di yay. Di retina tan lɛk di sɛns we de na kamɛra, bɔt i rili kɔmpleks ɛn i dɔn go bifo. di layt we de fכl pan di rεtina de kכnvכlt to nεv signal dεm εn sεnd to di bren. Dis kin apin bɔku tɛm insay wan sɛkɔn!

Di spɛshal tin dɛn we dɛn kamɛra dɛn de ebul fɔ du, dat na fɔ fos ɛn kɔntrol layt, na yu yay de du am ɔtomɛtik wan . Di pupil na yu yay kin dilayt ɛn kɔnstrikt, we kin kɔntrol di layt we de go insay yu yay. Apat frɔm dat, mɔsul dɛn de we de kɔntrol di lens na yu yay. Na dɛn mɔsul ya de alaw layt rayt fɔ fos so dat yu go ebul fɔ si tin dɛn na difrɛn distans klia wan.

Retina: Na wɔndaful ples fɔ kech layt!

Yu retina na wan kayn sɛl we rili spɛshal, we rili sɛnsitiv. Dɛn kɔl dɛn tin ya foto-rɛsɛptɔ., dat na, "sɛl dɛn we de no layt." We layt fɔdɔm pan dɛn sɛl dɛn ya, kemikal ɛn ilɛktrik riakshɔn kin apin insay dɛn sɛl dɛn de. na so dεn sεl dεm de no di layt εn kכnvכlt am to inkכd nεv signal dεm.

tu men tכp dεm de fכ dεn sεl dεm ya we de sεnsitiv layt (foto rεsεptor dεm):

• Rod: Na dεn wan ya de mεntal rεspכns fכ no di chenj dεm na di layt intensiti. Rod na di tin we de ɛp yu fɔ si tin dɛn we layt nɔ de, i.e. na dak ples.
• Kכn dεm: dεn fכto rεsεpכta dεm ya kin sεnsitiv mכr εn dεn kin no fayn fayn ditel dεm εn difrεn kכla dεm.

we dεn kכnvכlt dεn nεv signal dεm ya we dεn kכd to imej, di rεtina de sεnd dεn signal dεm to yu optik nεv dεm.

Optic nerves: Na di kebul dɛm we de kɛr mɛsej to di bren!

Yu optik nɛv dɛn tan lɛk kebul dɛn we de kɛr data. Dɛn kin kɔnɛkt yu retina to difrɛn pat dɛn na yu bren. Dɛn signal dɛn de kin travul along di optik nɛv dɛn ɛn rich difrɛn pat dɛn na yu bren, usay dɛn kin dikɔd ɛn prosɛs dɛn.

Bren: Na de dɛn mek di pikchɔ!

Di las ɛn impɔtant tin kin apin na yu bren. di bren de tek dεn kכd signal dεm we de kam along di optik nεv dεm εn dεkכd dεm. afta dat i de yuz da dikod infכmeshכn de fכ mek wan "imej" fכ εvri yay.

Difrɛn pat dɛn na di bren kin wok togɛda fɔ ɔndastand da pikchɔ de gud gud wan, i kin dipen pan wetin yu si. Fɔ ɛgzampul, we yu rid dis sɛntɛns, di pat dɛn na di bren we de ɛp yu fɔ ɔndastand langwej ɛn mɛmba tin dɛn bak kin wok. Na so yu kin ɔndastand dɛn wɔd ya, mɛmba wetin dɛn min, ɛn mɛmba bak we gɛt fɔ du wit dɛn. Imajin, if yu si yu padi na strit, afta yu yay kapchɔ in imej ɛn sɛn am to yu bren, yu bren go no am ɛn se, "O, dis na Amal, nɔto so?" ɛn i de mach ɔl di mɛmori dɛn we gɛt fɔ du wit am (di wan dɛn we yu tɔk to am, di wan dɛn we yu laf wit).

Us mɛrɛsin kin afɛkt di we aw wi de si?

Vishɔn nid bɔku difrɛn pat ɛn strɔkchɔ dɛn na di bɔdi fɔ wok togɛda. So, difrɛn kɔndishɔn kin afɛkt ɛni wan pan dɛn pat ya. Sɔm tin kin afɛkt pas wan pat.

Na sɔm ɛgzampul dɛn bɔt tin dɛn we kin afɛkt yu yay:

• Sik dɛn we kin kam wit di yay: Fɔ ɛgzampul, katarakt, glaukoma.
• Sik dɛm wae gɛt fɔ du wit di retina ɛn optik nɛv: Fɔ ɛgzampul, dayabitik retinopathy ɛn optik nyuraytis.
• Sik dɛm wae gɛt fɔ du wit di bren: Fɔ ɛgzampul, wae pɔrsin nɔr de si fayn bikɔs ɔf strok, wae pɔrsin nɔr de si fayn bikɔs ɔf di bren tumor.

Nɔ fred dɛn tin ya, i impɔtant fɔ no. If yu notis ɛni chenj, i go fayn fɔ mek yu go to dɔktɔ.

"Vision" en "Sight" na tu difren tin?

Bɔku pipul dɛm, ivin masta sabi pipul dɛm ɛn sayɛnsman dɛm, kin yuz di wɔd dɛm "vishɔn" ɛn "say" fɔ chenj. Bɔt dɛn nɔto di sem tin. Imajin se yu kin yuz di tin dɛn we yu ebul fɔ si we yu nɔ rili si sɔntin (fɔ ɛgzampul, fɔ mek pikchɔ dɛn na yu maynd). Dɔn bak, sɔm tin dɛn de we kin apin na yu bren we yu bren nɔ kin ebul fɔ du wetin yu yay de si.

Fɔ ɛksplen dis smɔl mɔ:

Tink bɔt fɔ si as jɔs tin we pɔsin kin ebul fɔ du wit in bɔdi . Dat min se yu yay de no layt, chenj am to ilɛktrik ɛn kemikal signal, ɛn sɛn am to yu bren.

Vishɔn nid fɔ ebul fɔ prosɛs di signal dɛn we de kɔmɔt na yu yay. If yu nɔ du da prɔses de, di signal dɛn we yu yay de sɛn to yu bren nɔ go gɛt yus.

Pan ɔl we i kin tan lɛk se i strenj fɔ tink bɔt dɛn tu tin ya difrɛn wan, sɔm tin dɛn de we kin afɛkt di we aw pɔsin de si ɛn nɔ afɛkt di we aw pɔsin de si. Wan ɛgzampul na wan sik we dɛn kɔl visual agnosia . Pɔsin we gɛt visual agnosia kin si, we min se in yay fayn, bɔt in bren nɔ kin ebul fɔ ɔndastand ɔ no wetin i de si. Fɔ ɛgzampul, if dɛn si banana, dɛn nɔ go ebul fɔ no se na banana. Wan ɔda patikyula sik na Prosopagnosia . Pipul wae gɛt dis sik kin si pipul dɛn fes, bɔt dɛn nɔr kin no udat dɛn bi. Sɔntɛm dɛn nɔ go ebul fɔ no dɛn yon famili ɔ padi dɛn fes. Yu nɔ tink se i wɔndaful?

Aw a go protɛkt ɛn kɔntinyu fɔ si mi yay?

Bɔku tin dɛn de we yu kin du fɔ protɛkt ɛn kɔntinyu fɔ si yu fayn fayn yay. Na sɔm pan dɛn:

• Mek dɛn chɛk yu yay ɔltɛm: Ɔlman fɔ de chɛk in yay ɔltɛm , ivin di wan dɛn we gɛt nɔmal (20/20) vishɔn . Bikɔs we yu de chɛk yu yay, yu kin no prɔblɛm dɛn we yu nɔ go si ɔ ivin no bɔt. Rifraktiv mistek , lɛk fɔ si nia (Myopia) ɔ fɔ si fa (Hyperopia), kin mek yu nɔ de si fayn smɔl smɔl. So yu nɔ go notis am fɔs. If yu chɛk yu yay, yu kin kech dɛn prɔblɛm ya bifo yu no.

• Protɛkt yu yay: I impɔtant fɔ wɛr ay protɛkshɔn pan tin dɛn we de mek yu yay pwɛl. Sefty gogl ɔ glas , fes mask ɔ shild kin ɛp wit dis. Fɔ ɛgzampul, if yu de wɛldɔm, kɔt wud, ɔ vaykum na os, dɛn tin ya rili impɔtant. Sanglas na fayn we bak fɔ protɛkt yu yay. Dɛn kin protɛkt yu yay frɔm UV rayt we de ambɔg yu.I de protɛkt frɔm. Bikɔs di san kin at na Sri Lanka, i rili fayn fɔ yuz sanglas.

• Tek kia ɔf yu it: Yu yay nid sɔm vaytamɛn ɛn tin dɛn fɔ mek i wok fayn. If yu gɛt ɛni kwɛstyɔn bɔt dis, yu kin go to yu famili dɔktɔ ɔ dɔktɔ we de mɛn yu yay. Fɔ it tin dɛn we gɛt balans rili impɔtant.

• Fɔ put yu bɔdi wok fɔs: Di wɛlbɔdi na yu yay de sho yu ɔl yu wɛlbɔdi. Fɔ ɛksesaiz ɔltɛm ɛn fɔ de du tin kin ɛp fɔ mek yu yay (ɛn yu ɔl bɔdi) gɛt wɛlbɔdi.

• Nɔ yuz tabak: Fɔ smok, vap, ɛn yuz tabak we nɔ gɛt smok kin ambɔg yu wɛlbɔdi ɛn yu yay bad bad wan. If yu lɛf dɛn tin ya, ɔ yu nɔ ɛva bigin, dat kin mek big difrɛns.

• If yu si chenj kwik kwik wan na yu yay ɔ yu nɔ de si fayn, go to dɔktɔ wantɛm wantɛm, nɔ de te: Dɛn tin ya kin bi wɔnin sayn fɔ se yu gɛt big prɔblɛm. Wantɛm wantɛm, we pɔsin nɔ bin de tink se i go si na rizin fɔ go to dɔktɔ. If yu gɛt wan sik we kin mek yu si chenj wantɛm wantɛm, yu dɔktɔ ɔ dɔktɔ we de mɛn yu yay go tɛl yu ustɛm yu fɔ go to patikyula tritmɛnt.

Di tin we impɔtant pas ɔl na fɔ tek kia ɔf yu yay. If yu notis smɔl chenj, nɔ ignore am.

Sɔma: Tin dɛn we yu fɔ mɛmba

Fɔ bɔku pipul dɛn, fɔ si na di impɔtant sɛns we dɛn kin yuz ɛvride. Pan ɔl we i kin tan lɛk se na simpul tin we pɔsin kin ebul fɔ du, fɔ tru, na wan pan di tin dɛn we kin mek wi bɔdi nɔ izi fɔ du. Fɔ mek yu yay wok fayn, ɔl pat pan yu yay, lɛk di retina, di optik nɛv, ɛn di bren, ɔl fɔ wok togɛda fayn fayn wan.

Bɔt gud tin na dat, bɔku tin dɛn de we yu kin du fɔ protɛkt ɛn kɔntinyu fɔ gɛt dɛn valyu yay ya. Dɔn, bifo yu wɔri bɔt wetin yu go si ɔ wetin yu nɔ go si, yu go ɛnjɔy fɔ luk di tin dɛn we yu want fɔ si. So, stat fɔ tek kia ɔf yu yay tide!

` Vishכn, yay, vishכn, bren, optik nεv, rεtina, ay protεkshכn, ay hεlth