Yu dɔn ɛva de waka na strit ɛn stɔp wantɛm wantɛm we yu si motoka de kɔmɔt na di sayd? Ɔ yu dɔn ɛva sidɔm na rum ɛn luk bifo ɛn si pɔsin de waka kɔmɔt na yu yay kɔna? Na dat wi kin kɔl peripheral vision . Wi ɔl de yuz dis abiliti na wi ɛvride layf we wi nɔ no. So, lɛ wi tɔk bɔt am smɔl mɔ tide.
Wetin na periferik vishɔn?
Fɔ tɔk am simpul wan, we yu luk stret bifo yu nɔ muv yu ed, ɔl wetin yu si na di sayd dɛn, ɔp, ɛn dɔŋ na pat pan yu periferik vishɔn. Dis na di rizin we mek wi se "si kɔmɔt na di kɔna na yu yay."
Wetin yu si we yu de pe atɛnshɔn dairekt pan sɔntin na in dɛn kɔl yu sɛntral vishɔn . Dis vishɔn na di wan we klia ɛn shap pas ɔl ɔltɛm.
Imajin se yu de rid wan buk. Yu yay de ful-ɔp pan di tɛks. Na dat na di men tin we yu de si. Bɔt di sem tɛm, yu nɔ go ebul fɔ si tin dɛn we pas di buk, lɛk di bɔtul we gɛt wata we de na di tebul, ɔ pɔsin we de waka pas. Dat na periferik vishɔn.
| Ficha we pɔsin kin si | Sɛntral Vishɔn | Pɛriferal Vishɔn |
|---|---|---|
| Fɔ tɔk klia wan | Rili shap ɛn klia. Di ditel dɛn de klia wan. | Di klia wan nɔ fayn. Di ditel dɛn nɔ de klia wan. |
| Di we aw pɔsin kin no di kɔlɔ | Yu kin ebul fɔ no difrɛn kɔlɔ dɛn fayn fayn wan. | Di we aw pɔsin kin no di kɔlɔ nɔ fayn. |
| Ditekshɔn fɔ muvmɛnt | Gud, bɔt nɔto di men wok. | I rili sɛnsitiv. Ivin di smɔl muvmɛnt dɛn kin no kwik kwik wan. |
| Men yus | Rid, no fes, si di ditel. | Fɔ no di tin dɛn we de arawnd yu we yu de waka, drayv, ɔ ple spɔt. |
Wetin mek dis vishɔn impɔtant to wi?
Visual acuity na impɔtant tin fɔ wi ɛvride aktiviti dɛm ɛn bak fɔ sef.
Imajin se yu de drayv motoka. Yu de luk stret bifo yu na di rod. Bɔt na bikɔs yu de si di say dɛn we yu de si, yu kin ebul fɔ wach motoka dɛn we de kɔmɔt na di tu say dɛn ɛn pipul dɛn we de krɔs di rod. Semweso, kriket batsman, pan ɔl we i de kɔnsɛntret fɔ hit di bɔl, i kin gɛt aidia bɔt usay di filda dɛn de bikɔs ɔf dis vishɔn. Na bikɔs ɔf dis vishɔn bak we de ɛp yu fɔ avɔyd fɔ bang sɔntin na di sayd we yu de waka.
Us pat dɛn na di yay de gi dis vishɔn?
Wi yay tan lɛk kamɛra. Insay di yay, na di bak, wan skrin de we dɛn kɔl di retina . I gɛt bɔku bɔku sɛl dɛn we de kech layt. Dɛn kin rayt di pikchɔ dɛn fɔ wetin wi de si na dis skrin.
- di pat pan di retina we de na di sεntrεm, εn we de gi wi di shap εn klia vishכn, dεn kכl am di makula .
- Rayt na di midul pan am na wan ples we rili sɛnsitiv we dɛn kɔl di fovea . Na de wi sentral vishɔn kɔmɔt.
So usay di periferi vishɔn kɔmɔt? i de kכmכt frכm di sεntri pat pan di rεtina, di makula, εn di εria dεm we de rawnd am. Pan ɔl we dɛn say dɛn de gɛt sɛl dɛn we kin fil lɛk layt, dɛn nɔ kin ebul fɔ si shap shap lɛk di fovea. Na dat mek tin dɛn we de arawnd yu nɔ klia lɛk aw dɛn de na di sɛnt.
Wetin go apin if yu nɔ de si fayn igen?
Dis sik, we yu nɔ ebul fɔ si di tin dɛn we de arawnd yu ɛn jɔs si wetin de bifo yu, dɛn kɔl am tanɛl vishɔn . Imajin se yu de rol wan pepa ɛn luk di wɔl tru am. Na so i kin fil. Yu nɔ go ebul fɔ si ɛnitin na di tu say dɛn. Dis kin bi wan bad bad tin, bikɔs i kin mek i nɔ izi fɔ du ɛvride wok, mɔ we yu de drayv ɛn waka.
Sɔntɛnde, dis kin bi di ɔda we. Dat min se we yu gɛt periferi vishɔn, na di say nɔmɔ we yu luk stret bifo de sho lɛk blak spat. Wi kɔl dis (Sɛntral Skɔtoma) .
Na nɔmal tin fɔ fil lɛk se yu jɔs de si tin dɛn na yu yay?
Sɔntɛnde yu kin si tin dɛn lɛk smɔl bɔl dɛn we gɛt trɛd, blak dɔt dɛn, ɔ spayda wɛb dɛn we de flɔt bifo yu yay. Wi kin kɔl dɛn tin ya (Eye floaters) . As wi de ol, di tin we lεk jεli insay wi yay (Vitreous Humor) de shrin sכmtεm. Dɔn, smɔl smɔl pat dɛn pan am kin brok ɛn apia lɛk flota. Sɔntɛnde, yu kin si bak layt we de shayn we tan lɛk laytin. Bɔku tɛm, dɛn tin ya nɔ kin denja.
Bɔt if yu de si tin dɛn ɔltɛm we nɔ rili de—lɛk shep, layt, ɔ layn—na sɔntin we yu fɔ wɔri bɔt.
- Sɔntɛm na hallucinations .
- Ɔ, e kin bi wan sik lɛk Charles Bonnet syndrome , usay pipul dɛm wae nɔr de si fayn fayn wan kin si tin dɛm wae nɔr de.
If yu de gɛt dɛn sik ya bɔku tɛm, ɔ if yu de si dɛn mɔ pas aw yu bin de si am bifo, i go fayn fɔ mek yu go to dɔktɔ we sabi bɔt yu yay wantɛm wantɛm ɛn mek dɛn chɛk yu yay. I impɔtant fɔ no di rayt tin we de apin frɔm dɔktɔ pas fɔ gɛs fɔ yusɛf.
Aw yu kin tɛst dis vishɔn?
We yu go to ay dɔktɔ, i go chɛk yu periferik vishɔn. Wan tɛst de we dɛn kɔl Visual Field Test . Na wetin yu fɔ du na fɔ luk wan ples we yu nɔ muv yu ed. Dɔn dɛn go aks yu if yu kin si layt dɛn we de kɔmɔt rawnd yu. Dis na tɛst we rili simpul ɛn we nɔ de mek pɔsin fil pen. Dis go mek yu no aw fa yu kin si ɛn if yu gɛt ɛni prɔblɛm wit yu yay.
Aw yu kin kɔntinyu fɔ si fayn fayn wan rawnd yu yay?
Wi yay na tin we rili valyu, so bɔku tin dɛn de we wi kin du fɔ mek wi si fayn fayn wan.
- Fɔ chɛk yu yay ɔltɛm: I rili impɔtant fɔ mek dɔktɔ we de mɛn yu yay chɛk yu yay wan tɛm insay di ia, mɔ afta yu dɔn ol 40 ia.
- Fɔ liv fayn layf: I rili fayn fɔ du ɛksɛsayz fayn ɛn it tin dɛn we go mek yu it fayn (espɛshali frut, vɛjitebul, ɛn fish).
- Fɔ kɔntrol di bɔdi wet: Sik dɛn lɛk dayabitis ɛn ay blɔd prɛshɔn we pɔsin kin gɛt we i fat kin afɛkt di yay bak.
- Protɛkt yu yay: Wear gud sanglas we yu de na do na di san. Dis go protɛkt yu yay frɔm UV rayt we go ambɔg yu.
If yu gɛt ɛni prɔblɛm wit yu yay, tɔk to yu dɔktɔ bɔt am. Sɔntɛnde, spɛshal ay ɛksɛsayz (vishɔn tɛrapi) kin ɛp fɔ mek yu si fayn fayn wan.
Mɛsej we dɛn kin kɛr go na os
- Pɛriferal vishɔn de tɔk bɔt wetin wi de si na di sayd dɛm ɛn rawnd wi we wi luk stret bifo wi nɔ muv wi ed. I rili impɔtant fɔ mek wi sef ɛvride.
- Dis vishɔn, pan ɔl we i nɔ klia lɛk we yu de luk stret bifo, i rili gud fɔ no aw pɔsin de muv.
- we yu lכs di pεriferal vishכn dεn kכl am "tכnel vishכn." Dis kin bi siriɔs sik.
- If yu kin si layt bifo yu yay bɔku tɛm ɔ yu kin si tin dɛn we nɔ de, fɔ tru, go to dɔktɔ we de mɛn yu yay.
- Fɔ liv fayn layf ɛn fɔ de chɛk yu yay ɔltɛm na di bɛst we fɔ protɛkt yu valyu yay.
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