Lɛ wi lan smɔl bɔt di Keratometry tɛst, we de mɛzhɔ di kɔba we di yay dɛn kɔba.

We yu dɔn ɛva du yu yay ɛgzam, yu go mɔs dɔn si di dɔktɔ de luk yu yay ɛn yuz difrɛn tin dɛn fɔ chɛk yu yay. Sɔntɛnde wi kin wɔnda, "Wetin dis de luk bak?" Wan pan dɛn impɔtant ay tɛst dɛn de na di wan we dɛn kɔl Keratometry. Tide, wi go tɔk bɔt wetin i bi, wetin mek dɛn du am, ɛn aw dɛn du am.

Wetin na Keratometry?

Fɔ tɔk am simpul wan, keratometry na tɛst we de mɛzhɔ di natura kɔva we di kɔnia , di transparent, sfɛrikal pat na di frɔnt pat na yu yay. Di kɔnia tan lɛk wan transparent kɔva oba wi yay. I kɔrɛkt kɔva rili impɔtant fɔ mek yu si klia wan.

Wetin dis keratometry test de no?

Dis tɛst kin mɔs no if yu gɛt wan sik we dɛn kɔl astigmatism. Astigmatism na wan rili kɔmɔn rεfrεktiv mistek we de mek yu nɔ de si fayn.

Imajin, bɔku tɛm, pɔsin we gɛt wɛlbɔdi yay kin rawnd lɛk baysbɔl. Dɔn, we layt kam insay di yay, i kin pe atɛnshɔn na wan ples ɛn wi kin si klia wan. Bɔt di yay fɔ pɔsin we gɛt astigmatism, dat na di kɔnia, tan lɛk rɔgbi bɔl, ɔ i lɔng smɔl lɛk di bak pat pan spun, ɔ i kɔba mɔ to wan say. Dɔn , we layt kam insay di yay, i nɔ de pe atɛnshɔn na wan ples, ɛn i nɔ de si fayn. dis kεratכmεtri tεst de mכsu di kכva we di kכnia kכva.

Aw dɛn kin du dis keratometry tɛst? I rili izi fɔ du!

Dis na tɛst we kin rili kwik ɛn we nɔ kin mek pɔsin fil pen. Yu ay spɛshal dɔktɔ kin du am na in ɔfis. Yu nɔ nid fɔ sɛt spɛshal de ɔ tɛm fɔ am. Yu kin du am we yu de du yu yay ɛgzam ɔltɛm, ɔ yu kin du am apat if yu dɔktɔ sɔprayz se yu gɛt astigmatism.

Dɔn bak, if yu go wɛr kɔntakt lens instead fɔ wɛr glas, ɔ if yu de rɛdi fɔ ɔpreshɔn pan katarakt, yu go mɔs gɛt dis keratometry tɛst.

Naw lɛ wi si aw dɛn de du dis. Di dɔktɔ kin yuz wan tin we dɛn kɔl keratometer . I tan lɛk tɛliskɔp smɔl. Bɔt, i nɔ de luk di sta dɛn we de fa, bɔt i de luk yu yay frɔm rili klos. Na di step dɛm fɔ di tɛst:

1. Dɛn go aks yu fɔ sidɔm, ɛn di keratomita gɛt sɔpɔt fɔ yu chin ɛn ples fɔ rɛst yu fɔrɛst . As yu de put yu ed pan am, di dɔktɔ go ajɔst di divays fɔ fit yu yay fayn fayn wan.

2. Dɔn dɛn tɛl yu fɔ luk insay di divays. I tan lɛk se yu de luk tru baynuk. Sɔntɛnde, dɛn kin tɛl yu fɔ lɔk di ɔda yay we dɛn nɔ de chɛk.

3. Di dɔktɔ de tɛl yu wetin de insay di divays.Aks dɛn fɔ luk wan pikchɔ. I kin gɛt tri sɛklɔ, ɔ sɔntin lɛk target we gɛt plɔs sayn ɛn mayns sayn.

4. Dɔn, di dɔktɔ kin chenj di divays smɔl smɔl , ɛn i kin muv di tin dɛn we dɛn want fɔ du, ɛn i kin mek di fayn sayn dɛn go na say we dɛn kin tɔch dɛnsɛf.

5. We dɛn dɔn rich di nɔmba, di dɔktɔ kin rayt di mɛzhɔmɛnt dɛn. Dɔn, i kin ajɔst di ɔda yay na di divays ɛn tɛst da yay de di sem we.

Tink bɔt am lɛk we yu de ajɔst di we aw kamɛra de pe atɛnshɔn. Di dɔktɔ de wach fɔ mek shɔ se di pikchɔ dɛn de alaynɛd ​​wit di kɔva we yu kɔnia de kɔba.

Si? I rili simpul, nɔto so? Yu kin dɔn dis tɛst insay jɔs sɔm minit dɛn.

Ɛni bad tin ɔ risk de fɔ dis?

Nɔ, no risk nɔ de. Di layt we de kɔmɔt na di keratomita kin brayt smɔl we yu de luk, bɔt i nɔ go ambɔg yu yay ɔ yu yay.

Bɔt wan smɔl tin de. Dat min se dis keratometry test de gi aprɔksimat ɛstimat fɔ yu kɔnia, pas fɔ mɛzhɔ di rayt we. di rizin fכ dis na biכs dis tεst de mכsu yu kכnia, fכ tek am se i pafεkt sfεri, di sem rawnd כlsay. Bɔt fɔ tru, ɔlman in yay gɛt smɔl smɔl tin dɛn we de apin na di wɔl. So, di kɔnia nɔ jɔs tan lɛk sfɛra.

Bɔt dat nɔ min se dis tɛst nɔ gɛt wan yus. Imajin wan glob we gɛt map fɔ di wɔl. Wi no se di say we di wɔl de, gɛt mawnten dɛn, si dɛn, ɛn difrɛn difrɛn tin dɛn we de na di wɔl, so i nɔ smol, ɛn i nɔ rili rawnd. Bɔt glob na fayn tin fɔ ɛp wi fɔ ɔndastand usay wi de. Keratometry na di sem tin. Pan ɔl we i nɔto di rayt we fɔ mɛzhɔ di kɔnia, i rili yusful fɔ no kwik ɛn kɔrɛkt wan fɔ no di astigmatism we bɔku pipul dɛn gɛt.

sכm ay spεshal pipul dεm naw de yuz kכnia map (dεn kכl am bak kכnia tכpografi εn kכnia tכmografi) insted fכ kεratometri. Dɛn tin ya dɔn go bifo ɛn dɛn de mek dɛn ebul fɔ mɛzhɔ di rayt we. Naw dɛn de kam fɔ bi pɔpul as we fɔ no if pɔsin gɛt astigmatism. Yu dɔktɔ kin du kɔnia map tɛst bak fɔ kɔnfirm di rizɔlt fɔ di keratometry tɛst.

Wetin na dis K ridin? Yu tink se nɔmal valyu de?

di rizulyt dεm fכ wan kεratכmεtri tεst dεn kכl am K ridin . Ɔftalmolɔg dɛn kin mɛzhɔ dis insay yunit dɛn we dɛn kɔl dayɔpta .

nכmal wan, wan hεlty kכnia de rεfrakt layt wit wan valyu we na lεk 43 diopta. if di kכnia gεt stip kכv (stip kכnia), dis valyu de inkrεs. if di kכv sכm (flat kכnia), dis valyu de dכn.

• if yu kכnia pafεkt rawnd, i gεt di sem K valyu oba in כl sεf.
• Bɔt if yu gɛt astigmatism, yu kɔnia go sho tu K valyu dɛn . wan na di valyu na di pat we kכba pas כl, εn di כda wan na di valyu na di pat we kכba sכmtεm, we flat pas כl na di kכnia. di kεratometri tεst de sho dis difrεns εn usay di kכva de hכy εn lכs.

Dɛn K ridin ya rili impɔtant fɔ mek di dɔktɔ rayt di kɔva we yu kɔnia kɔba. Dɛn mɛzhɔmɛnt ya kin ɛp di dɔktɔ fɔ no wetin de mek yu de si chenj. Dɔn bak, if yu nid fɔ gɛt katarakt ɔpreshɔn, dɛn kin yuz dis K ridin bak fɔ pik di intraokular lens.

Dɛn rizɔlt ɛn nɔmba dɛn ya kin at fɔ mek yu ɔndastand. Bɔt nɔ wɔri. Yu optometrist ɔ dɔktɔ kin ɛp yu fɔ ɔndastand yu yay prɛskrishɔn. Dɛn kin ɛp yu bak fɔ pik di bɛst glas, kɔntakt lens, ɔ ɔda we fɔ kɔrɛkt yu yay.

Ustɛm wi fɔ go to dɔktɔ we de mɛn yu yay?

Yu ay spɛshal dɔktɔ go tɛl yu aw ɔltɛm yu fɔ de du yu yay ɛgzam ɔltɛm.

As wi de ol, wi yay kin chenj shep bay insɛf, so astigmatism kin chenj. Bɔt big chenj dɛn we kin apin wantɛm wantɛm na di astigmatism kin bi sayn fɔ ɔda sik we nid fɔ trit kwik, lɛk keratoconus. So, if yu notis ɛni chenj na yu yay ɔ yu yay – mɔ if yu yay tan lɛk se yu nɔ de si bɛtɛ pas aw i nɔmal ɔ i nɔ de si fayn – mek shɔ se yu go to ay spɛshal dɔktɔ wantɛm wantɛm.

Fɔ dɔn, tin dɛn we wi fɔ mɛmba

Keratometry na wan tɛst we dɛn kin du we spɛshal pipul dɛn we sabi bɔt yay kin yuz fɔ no if pɔsin gɛt astigmatism. Pan ɔl we di nem kin tan lɛk se i kɔmplikt, fɔ tru, di tɛst rili simpul. Na wetin yu fɔ du na fɔ luk wan spɛshal tin ɛn tɛl yu dɔktɔ we di sayn dɛn we de pan am layn. I go yuz dɛn mɛzhɔmɛnt dɛn de fɔ no aw yu kɔnia kɔba.

Mɛmba se dis nɔto tɛst fɔ pas ɔ fɔ fel. I nɔ mata aw yu astigmatism bad, we dɛn de fɔ kɔrɛkt am. Yu yay dɔktɔ go tɛl yu di bɛst we fɔ mek yu si klia wan.

So, nɔ fred if dɛn aks yu fɔ du keratometry we yu go fɔ ay ɛgzam. I rili impɔtant fɔ di wɛlbɔdi fɔ yu yay.

` Keratometry, Astigmatism, Kɔnia, Vishɔn Difɛkt, Ay Ɛgzam, K Ridin, Ay Hɛlth