So ɛyɛ bɔne sɛ wubehu ade anadwo? Momma yɛnka anadwo anisoadehu (Scotopic Vision) ho asɛm .

Fa no sɛ woakɔ owia mu na mpofirim ara wokɔɔ dan bi a emu yɛ sum mu, sɛ nhwɛso no, sinidan bi mu. Anaasɛ sɛ wonam abɔnten so anadwo, wɔ baabi a akanea nni hɔ a, egye bere kakra ansa na woahu nneɛma a atwa wo ho ahyia, ɛnte saa? Ɛno ne nea yɛfrɛ no anadwo anisoadehu, anaasɛ wɔ aduruyɛ mu nsɛm mu no , scotopic vision . Eyi yɛ yɛn aniwa tumi a ɛyɛ nwonwa.

Ɔkwan bɛn so na saa anadwo anisoadehu yi yɛ adwuma?

Eyi yɛ adeyɛ a ɛyɛ anigye yiye. Sɛ yɛbɛka no tiawa a, ɛte sɛ sɛnea mfoninitwa afiri yɛ adwuma kakra. Ma yɛnhwɛ sɛnea eyi yɛ adwuma.

Fa no sɛ wufi baabi a hann wɔ yiye mu kɔɔ baabi a ɛhɔ yɛ sum.

1. Aniwa no anim trɛw: Ade a edi kan a ɛba ne sɛ ɔfã tuntum a ɛwɔ w’ani no mfinimfini, aniwa no , trɛw ma hann pii kɔ mu sɛnea ɛbɛyɛ yiye biara. Ɛte sɛ nea worema mfoninitwa afiri bi ahwehwɛ no ayɛ kɛse.

2. Hann hyɛn aniwa no mu: Hann a ɛkɔ aniwa no mu wɔ saa kwan yi so no bɔ beae bi a ɛte sɛ screen a wɔfrɛ no retina wɔ aniwa no akyi.

3. Nkwammoaa soronko fi ase yɛ adwuma: Nkwammoaa soronko ɔpepem pii wɔ retina no mu a ɛyɛ hann nka. Yɛfrɛ saa mfoninitwafo yi . Eyinom yɛ ahorow abien.

• Cones: Eyinom boa yɛn ma yehu kɔla ahorow wɔ hann pa mu.
• Rods: Yɛn asɛm no mu abran ni. Saa ``abaa`` yi ne nkwammoaa a ɛboa yɛn ma yehu ade wɔ hann a ɛba fam mu, kyerɛ sɛ, anadwo.

4. Nnuru bi fi ase: Sɛ wohyɛn sum mu wie a, wɔ simma kakraa bi mu no, protein bi a wɔfrɛ no rhodopsin a ɛwɔ wo poma nkwammoaa mu no fi ase yɛ adwuma. Saa adeyɛ yi nyinaa gye bɛyɛ simma 30 ansa na wɔawie, na wubetumi ahu sɛnea wubetumi biara wɔ sum mu. So woahyɛ nea enti a mpofirim ara wuntumi nhu ade wɔ sum mu no nsow?

5. Nkrasɛm no kɔ amemene no mu: Poma nkwammoaa a wɔayɛ adwuma no dan hann a ɛba fam yi ma ɛbɛyɛ anyinam ahoɔden nsɛnkyerɛnne na ɛde fa aniwa ntini no so kɔ amemene no mu .

6. Amemene no na ɛyɛ mfonini no: Awiei koraa no, w’amemene no kyerɛ saa nsɛnkyerɛnne yi ase na ɛyɛ mfonini a wuhu wɔ sum mu no.

Dɛn ne aduruyɛ mu tebea horow a ɛka ade a wohu anadwo?

Yɛn ani a yehu anadwo no gyina abaa a ɛwɔ yɛn retina no akwahosan so. Enti biribiara a ɛsɛe saa nkwammoaa yi betumi asɛe yɛn ani a yehu anadwo. Tebea horow a ebetumi de eyi aba no bi ni.

Dɛn nti na mmoa tumi hu ade yiye anadwo sen yɛn?

Eyi yɛ ɔhaw a nnipa pii wɔ. Mmoa te sɛ mpataa ne akraman tumi hu ade yiye anadwo sen yɛn. Nneɛma atitiriw abien nti na ɛte saa.

1. Aniwa akɛse: Mmoa aniwa ne wɔn retina sõ sen yɛn de no, enti wɔn aniwa tumi boaboa hann pii ano bere mpo a hann kakraa bi na ɛwɔ hɔ no.

2. Ntini a ɛhyerɛn: Mmoa aniwa akyi no, ntini bi wɔ hɔ a wɔfrɛ no tapetum lucidum . Eyi yɛ adwuma te sɛ ahwehwɛ. Hann a ɛhyɛn aniwa no mu no fa retina no mu, bɔ saa ntini yi, na ɛsan dan kɔ retina no mu. Ɛne sɛ, hann no bɔ retina no mprenu sen sɛ ɛbɛbɔ pɛnkoro. Eyi nti na wotumi hu ade yiye wɔ tebea horow a ɛyɛ sum kɛse mpo mu no. So woahu sɛ ɔkraman aniwa hyerɛn pɛn bere a hann bi hyerɛn wɔ so anadwo no? Ɛte saa esiane saa ntini a wɔfrɛ no `(Tapetum lucidum)` yi nti.

Yɛbɛyɛ dɛn ama yɛn anadwo anisoadehu ayɛ papa?

Yɛn ani yɛ ade a ɛsom bo paa. Enti ɛyɛ yɛn asɛde sɛ yɛbɔ wɔn ho ban. Nneɛma bi a wubetumi ayɛ na ama w’ani ahwɛ anadwo yiye ni.

• Ma wɔnhwɛ w’ani daa: Sɛ woanhyɛ ahwehwɛ mpo a, ɛho da so ara hia sɛ anyɛ yiye koraa no, aniwa ho oduruyɛfo bɛhwɛ w’ani pɛnkoro afe biara . Saa kwan yi so no, wobetumi ahu ɔhaw biara ntɛm.
• Kɔ w’akwahosan mu nhwehwɛmu koraa: Nyarewa te sɛ mogya mmoroso ne asikreyare betumi aka w’ani tẽẽ. Enti, kɔ wo duruyɛfo nkyɛn daa kɔhwɛ no koraa.
• Hyɛ awia ahwehwɛ pa: Hyɛ awia ahwehwɛ a ɛbɔ wo ho ban 100% UV (UV400) na abɔ w’ani ho ban afi owia hann a ɛyɛ hu a wɔfrɛ no ultraviolet (UV) ho. Mma nhwɛ owia no tẽẽ.
• Kwati sigaretnom: Sigaretnom betumi asɛe mogya ntini a ɛyɛ mmerɛw a ɛwɔ w’aniwa no mu no. Eyi nso ka wo hann agyefo nkwammoaa no.
• Di aduan pa: Nnuan a nnuru a ekum ɔyare mmoawa pii wom ho hia yiye ma aniwa akwahosan. Di aduan a nnuaba, nhabannuru, atoko, ne srade a ahoɔden wom pii wom.

Seesei wunim tumi nwonwaso yi a wɔfrɛ no anadwo anisoadehu yi ho nsɛm pii, a ɛboa yɛn ma yehu yɛn kwan wɔ sum mu na yɛfa dan mu. Sɛ wobɛkora saa tumi yi so a, ɛho hia sɛ wohwɛ w’ani so yiye. Sɛ wuhu nsakrae anaa wo ho nyɛ wo dɛ wɔ w’ani a wuhu anadwo no mu a, mmu w’ani ngu so na hwehwɛ aduruyɛfo afotu ntɛm ara.