So wunim kwan pɔtee a ɛda w’ani abien no nkaa tuntum ntam (pupillary distance)? Eyi ho hia paa ma nnipa a wɔhyɛ ahwehwɛ!

So woyɛ obi a ɔhyɛ ahwehwɛ? Anaasɛ worehwehwɛ sɛ wubenya bi? Sɛ saa a, ɛnnɛ yɛrebɛka biribi a ɛho hia yiye bere a worepaw ahwehwɛ a ɛfata w’ani yiye no ho asɛm. Eyi yɛ susudua a wɔfrɛ no ‘Pupillary Distance’ . Ebia wontee saa asɛmfua yi da. Nanso, ɛho hia paa sɛ woma w’ani so da hɔ.

Dɛn ne ‘pupillary distance’ yi?

Sɛ yɛbɛka no tiawa a, Pupillary Distance , anaa PD tiawa mu no, yɛ kwan a efi w’aniwa no mfinimfini (kurukuruwa tuntum a ɛwɔ w’ani mfinimfini) kosi w’aniwa aniwa no mfinimfini wɔ w’ani foforo no mu. Wɔtaa susuw eyi wɔ milimita (mm) mu. Ɛtɔ mmere bi a, aniwa ho animdefo frɛ eyi sɛ Interpupillary Distance (ID) .

Sɛ wɔma wo aduru a wɔakyerɛw ama wo ahwehwɛ a, saa PD bo yi ho hia yiye. Efisɛ ɛsɛ sɛ wosakra ahwehwɛ no ahwehwɛ no wɔ w’ani anim pɛpɛɛpɛ. Ɛno ne bere a wunya anisoadehu a emu da hɔ sen biara. Sɛ woretɔ ahwehwɛ wɔ intanɛt so a, akyinnye biara nni ho sɛ wubehia saa PD bo yi aka nnuru a wɔkyerɛw ma wo a efi w’ani nhwehwɛmu mu no ho.

So metumi asusuw eyi wɔ fie? Mɛyɛ dɛn ayɛ?

Yiw, wubetumi abɔ mmɔden sɛ wobɛsusuw wo PD wɔ fie sɛ wopɛ a. Nanso, sɛ wopɛ sɛ wosusuw no pɛpɛɛpɛ a, ɛbɛyɛ papa sɛ wobɛma obi a watete aniwa ho ɔbenfo asusuw ho . Efisɛ nsakrae ketewaa bi a ɛyɛ milimita kakraa bi mpo betumi aka w’ani so.

Nanso, sɛ w’ankasa wopɛ sɛ wosɔ hwɛ a, nea wuhia ara ne sodifo a wɔde milimita (mm) ahyɛ no agyirae ne ahwehwɛ. Sodifo titiriw bi wɔ hɔ a wobetumi anya wɔ intanɛt so a wɔayɛ no pɔtee sɛ wɔde susuw PD. Smartphone apps bi nso wɔ hɔ a wɔkyerɛ sɛ ɛboa wo ma wosusuw saa susuw yi. Nanso, ɛyɛ den sɛ wubenya ahotoso kɛse wɔ sɛnea susuw no yɛ pɛpɛɛpɛ no mu, sɛ́ ebia w’ankasa wosusuw anaasɛ wode app bi susuw no.

Sɛ wopɛ sɛ wosusuw wo ho a, ɔkwan a wobɛfa so ayɛ no ni:

Eyi betumi ayɛ den kakra, enti ɛsɛ sɛ wunya abotare.

1. Nea edi kan no, gyina ahwehwɛ anim wɔ baabi a hann wɔ yiye. Ma w’anim nkɔ akyirikyiri bɛyɛ nsateakwaa 18 fi ahwehwɛ no ho.

2. Afei, kura ruler no mu kɔ w’anim sɛnea ɛbɛyɛ a wubetumi ahu milimita agyiraehyɛde ahorow no. Wopɛ sɛ wokura sodifo no mu te sɛ nea worehwɛ ɔfasu bi, wɔ w’ani ase pɛɛ.

3. To w’ani benkum mu.

4. Afei, fa w’ani nifa nkutoo hwɛ no, fa zero (0) agyiraehyɛde no to sodifo no so wɔ w’ani nifa kurukuruwa tuntum no mfinimfini pɛpɛɛpɛ. Fa no sɛ nsensanee bi wɔ hɔ a ɛkyekyɛ kurukuruwa tuntum no mu abien pɛpɛɛpɛ, na ɛsɛ sɛ zero no wɔ saa nkyerɛwde no so. Mma nnhinhim sodifo no wɔ saa bere yi mu, ɛyɛ? Sɛ woyɛ saa a, ɛsɛ sɛ wosan fi ase bio.

5. Okay, afei bue w’ani benkum na to w’ani nifa mu.

6. Afei, fa w’ani benkum nkutoo hwɛ no, hwehwɛ milimita agyiraehyɛde a ɛwɔ w’ani benkum kurukuruwa tuntum no mfinimfini pɛpɛɛpɛ. Sɛnea na ɛte kan no, sɛ wofa no sɛ kurukuruwa tuntum no yɛ abien pɛpɛɛpɛ a, milimita agyiraehyɛde a ɛbɛn saa mfinimfini no sen biara ne wo PD bo.

Kae: Sɛ wosusuw saa kwan yi so nkutoo a, ɛyɛ den kakra, na mfomso betumi asi. Enti sɛ ɛbɛyɛ yiye a, nya mmoa.

Sɛ wode obi mmoa susuw nneɛma ho a, ɛyɛ mmerɛw mpo!

Sɛ obi boa wo a, ɛyɛ mmerɛw mpo. Sɛnea wobɛyɛ no ni:

1. Ɛsɛ sɛ onipa a ɔresusuw wo PD no tra w’anim, na bɛyɛ nsateakwaa 18 na ɛda w’anim ntam.

2. Ɛsɛ sɛ ɔkura sodifoɔ no mu kɔ w’anim, sɛdeɛ ɛbɛyɛ a ɔbɛtumi ahunu milimita agyiraeɛhyɛdeɛ no. Ɛsɛ sɛ sodifo no hyɛ w’ani ase (te sɛ nea wufi ɔfasu bi atifi rehwɛ no).

3. Afei, hwɛ onipa a ɔresusuw wo PD no ani benkum mu tẽẽ. Efi saa bere yi rekɔ no, bɔ mmɔden sɛ worenhinhim wo ti.

4. Ɛsɛ sɛ onipa a ɔresusuw no de zero (0) agyiraehyɛde no si sodifo no so sɛnea ɛbɛyɛ a ɛbɛtra w’ani nifa nkaa tuntum no akyi ano (kyerɛ sɛ, w’ani nifa nkaa tuntum no ano a wobetumi afi wɔn benkum so ahu). Mma sodifo no nkɔ baabiara wɔ saa bere yi mu, anyɛ saa a, ɛsɛ sɛ wosan fi ase bio.

5. Afei, hwɛ onipa a ɔresusuw wo PD no ani nifa mu tẽẽ.

6. Ɛsɛ sɛ onipa a ɔresusuw no hwɛ milimita agyiraehyɛde a ɛbɛn w’ani benkum nkaa tuntum no mu ano kɛse (kyerɛ sɛ, w’ani benkum nkaa tuntum no ano a wotumi hu fi wɔn nifa so). Saa milimita agyiraehyɛde no ne wo PD bo.

Dɛn nti na ‘pupillary distance’ (PD) yi ho hia saa?

Susuw ho saa kwan yi so: w’aniwa a ɛwɔ w’ani so no te sɛ mfoninitwa afiri ahwehwɛ. Hann nam eyinom so hyɛn mu. Afei, hann yi fa aniwa a ɛwɔ aniwa no mu no mu na ɛtɔ retina a ɛwɔ aniwa no akyi no so. Ɛno na yehu.

Nanso, sɛ w’ani ntumi nhu ade yiye a, hann yi ntumi nkɔ baabiara yiye. Ɛno nti na yehu akwansin bi a ɛyɛ kusuu no. Nhwɛso kakraa bi ni:

• Akyirikyiri/Hyperopia - tumi hu pefee wɔ akyirikyiri nanso ontumi nhu akyirikyiri.
• Nhumu a ɛbɛn/Myopia - Otumi hu ade yiye wɔ akyirikyiri nanso ontumi nhu ade wɔ akyirikyiri.
• Presbyopia - tebea a ɛka nnipa pii wɔ mfeɛ aduanan akyi.
• Astigmatism - Hann ntumi ntwe n’adwene yiye esiane nsakrae a ɛba aniwa no nsusuwii mu nti.

Sɛ ɛba ahwehwɛ ho a, ɛnyɛ obiara na obenya ahwehwɛ koro. Nea enti a ɛte saa ne sɛ nneɛma pii ka w’ani so, te sɛ sɛnea w’aniwa ho haw no mu yɛ den, ne sɛnea w’aniwa yɛ mmerɛw dodow.

Ɛdenam wo PD a wobɛsusuw no pɛpɛɛpɛ na woayɛ nsakrae wɔ w’aniwa ahwehwɛ no mfinimfini a ɛhwɛ ade no mu sɛnea ɛbɛyɛ a ɛbɛkɔ w’aniwa no mfinimfini so no, wubenya w’aniwa ahwehwɛ no so mfaso kɛse. Eyi bɛma woahu anisoadehu a emu da hɔ na ahotɔ wom.

So ‘Nasopupillary Distance’ yɛ biribi te sɛ eyi?

Yiw, susudua foforo a ɛho hia wɔ PD akyi, a ɛneNasopupillary Kwansin a Ɛwɔ Hɔ . Eyi ne kwan a efi w’ani tuntum no mfinimfini kosi wo hwene no mfinimfini.

Fa no sɛ nnipa baanum biara mu baanan nni aniwa ne hwene a ɛne ne ho hyia koraa. Ɛne sɛ, `Nasopupillary Distance` no nyɛ pɛ mma aniwa abien no nyinaa. Mpɛn pii no, saa nsonsonoe yi nnu milimita 2 (2mm). Nanso, wɔ bɛyɛ nnipa baanum biara mu biako fam no, nsonsonoe yi betumi aboro milimita 2 (2mm). Esiane sɛ saa kwan yi sua nti, ebia nnipa pii renhu anaa wonnim ho asɛm mpo. Nanso, eyi nso betumi aka sɛnea wɔyɛ ahwehwɛ, titiriw ahwehwɛ a ɛhwɛ nneɛma pii so.

Sɛ ‘Pupillary Distance’ (PD) susudua no nyɛ nokware a, dɛn na ɛba?

Susuw nea ɛbɛba sɛ wɔde ahwehwɛ a wɔansusuw no yiye ama wo PD hyehyɛ wo ho hwɛ. Ɛda adi sɛ wubefi ase anya ɔhaw te sɛ eyi:

• Aniwa a ɛyɛ den
• Tipaeɛ
• Nkyekymu w w'anisoadehunu mu - nnema da adi se woakyinkyim anaase woakyinkyim

Ɛwom sɛ saa sɛnkyerɛnne ahorow yi nyɛ nea asiane wom kɛse de, nanso ebetumi ama wo ho atɔ wo kɛse. Afei nso, w’ani betumi asɛe esiane nhyɛso a ɛho nhia a ɛwɔ w’ani so nti. Ɛno nti na ɛho hia sɛ wonya PD a ɛfata no.

So saa ‘pupillary distance’ (PD) yi sesa bere ne bere mu?

Sɛ woyɛ abofra a, saa PD yi sesa bere a worenyin no. Ɛne sɛ, PD a wowɔ bere a woyɛ abofra no ne bere a woyɛ abofra no nyɛ pɛ. Nanso, mpɛn pii no, saa PD bo yi nsakra bere a woabɛyɛ ɔpanyin akyi.

Nanso, nsɛm bi wɔ hɔ a ɛntaa nsi koraa a ebetumi asesa. Sɛ nhwɛso no, sɛ ɛsɛ sɛ wɔyɛ w’ani anaa w’anim oprehyɛn a, wo PD betumi asesa kakra wɔ saa oprehyɛn no akyi.

Sɛ wɔkyekyem pɛpɛɛpɛ a, dɛn ne ‘pupillary distance’ (PD)?

Sɛ wɔkyekyɛ mu a, PD boɔ a ɛwɔ ɔpanyin mu no bɛyɛ milimita 63 `(63mm)`. Nanso, eyi gu ahorow wɔ onipa biara mu. Mpanyimfo dodow no ara wɔ PD bo a ɛwɔ milimita 50 kosi 70 `(50mm - 70mm)`. Nnipa kakraa bi PD gyinapɛn ahorow betumi ayɛ soronko wɔ saa kwan yi akyi. Nnipa binom betumi anya bo a ɛba fam te sɛ milimita 45 `(45mm)`, bere a afoforo nso betumi anya bo a ɛkɔ soro te sɛ milimita 80 `(80mm)`.

Tebea bɛn mu na ɛnsɛ sɛ yɛde yɛn ho to yɛn ankasa atemmu so?

Sɛ wode w’aniwa ahwehwɛ no di dwuma wɔ atirimpɔw biako pɛ mu (sɛ nhwɛso no, akenkan anaa adwuma a emu yɛ hare) a, ɛsɛ sɛ wo PD no ye ma saa atirimpɔw no. Nanso, nsɛm bi wɔ hɔ a ɛho hia sɛ wosusuw wo PD no pɛpɛɛpɛ yiye . Eyinom ne nsɛm a ɛfa:

• Sɛ wo hia multifocal lenses a: Eyinom yɛ lenses te sɛ `progressive lenses`, `bifocals` (ahwehwɛ a ɛtumi hu akyirikyiri ne nea ɛbɛn nyinaa), anaa `trifocals` (ahwehwɛ a ɛtumi hu akyirikyiri mmiɛnsa no nyinaa, ntam kwan, ne bɛn). Sɛ wobɛyɛ saa ahwehwɛ yi fã biara pɛpɛɛpɛ a, ɛsɛ sɛ wuhu PD bo no pɛpɛɛpɛ.
• Sɛ ɛho hia sɛ wokɔ so hyɛ ahwehwɛ a ɛbɛma woahu ade a ɛbɛn ne nea ɛwɔ akyirikyiri nyinaa a:Efisɛ, sɛ yɛhwɛ biribi a ɛwɔ yɛn anim a, yɛn PD no tew kakra bɛyɛ milimita 3 (3mm).
• Sɛ w’aniwa irises no nhyia (te sɛ strabismus): Wɔ tebea horow a ɛtete saa mu no, ɛho hia sɛ woma oduruyɛfo titiriw bi susuw wo PD.

Wɔ nsɛm a ɛte sɛɛ mu no, ɛbɛyɛ papa sɛ wobɛma aniwa ho oduruyɛfo anaa aniwa ho ɔbenfo a wɔatete no asusuw wo PD mmom sen sɛ w’ankasa wobɛsusuw.

Dɛn nti na wɔanka PD yi ho asɛm wɔ me glasses prescription mu?

Eyi yɛ ɔhaw a nnipa pii wɔ. Wɔ aman bi mu (sɛ nhwɛso no, United States) mmara biara nni hɔ a ɛhwehwɛ sɛ wɔkyerɛ PD bo bere a wɔde aduru a wɔakyerɛw ama ahwehwɛ ama no. Nanso, aman bi wɔ mmara a ɛte saa. Wɔ Sri Lanka no, mpɛn pii no, w’ani ho oduruyɛfo anaa nea ɔyɛ ahwehwɛ no bɛsusuw PD bo yi na ɔde asie wɔn nkyɛn.

Ebia wobetumi ama wo PD bo sɛ wobisa a. Nanso, mmeae bi betumi agye sika foforo wɔ ho. Nanso, sɛnea ɛbɛyɛ a wubenya ahwehwɛ a ɛfata wo pɛpɛɛpɛ no, ɛho hia sɛ wosusuw PD bo yi pɛpɛɛpɛ. Enti, ɛbɛyɛ papa sɛ wubebisa w’ani ho oduruyɛfo anaa w’aniwa ahwehwɛ aguadidan no eyi ho asɛm.

Enti, nkrasɛm a wɔde kɔ fie no ni:

Okay, enti nneɛma bi a ɛsɛ sɛ wokae fi nea yɛaka ho asɛm no mu ni:

• Pupillary Distance (PD) yɛ kwan a ɛda w’aniwa nkaa tuntum no ntam.
• Saa PD bo yi ho hia yiye ma ahwehwɛ a ɛma wuhu ade pefee na ɛyɛ ahotɔ .
• Bere a wubetumi abɔ mmɔden sɛ wubesusuw eyi wɔ fie no, ɛbɛyɛ papa sɛ wobɛma obi a ɔhwɛ aniwa so asusuw no na ama woasusuw no pɛpɛɛpɛ sen biara.
• Sɛ PD susuw no nyɛ nokware a, wubetumi anya ɔhaw te sɛ w’ani a ɛyɛ wo yaw, tiyɛ, w’ani a ɛyɛ mmerɛw , na w’ani betumi asɛe mpo.
• PD bo a ɛfata ho hia, titiriw sɛ wode multifocal lenses di dwuma anaasɛ wowɔ tebea bi te sɛ strabismus a.

Enti, bere foforo a wobɛkɔ akɔsiesie w’aniwa ahwehwɛ no, hwɛ PD bo yi so kakra. Efisɛ nsonsonoe ketewaa bi a ɛyɛ milimita biako anaa abien mpo betumi anya w’ani so nkɛntɛnso kɛse! Aniwa abien a ɛte apɔw yɛ mfaso kɛse wɔ asetra mu.

` Aniwa kwan tenten, ahwehwɛ, aniwa nhwehwɛmu, anisoadehu, aniwa akwahosan, PD susuw, aniwa ntam kwan