Chicken blindness yog nrov npe ntawm tus kab mob, nyob rau hauv cov tshuaj hu ua hemeralopia (impaired pom kev hloov mus rau txo illumination). Ib tug neeg raug mob los ntawm cov kab mob no, heev tsis pom nyob rau hauv lub twilight thiab hmo ntuj, tab sis nyob rau hauv nruab hnub, nws qhov muag pom tseeb.
Nws yuav zoo li - qhov twg yog cov qaib? Qhov tseeb yog hais tias lub peev xwm ntawm tib neeg, thiab ntawm lwm lub qhov muag, kom hloov mus rau tej yam kev mob nrog txawv illumination nyob ntawm lub photosensitive ntsiab ntawm retina: rods thiab cones. Lub cones yog lub luag haujlwm rau lub hnub pom kev, thiab cov nrib nyoos, uas muaj ib cov khoom ntim siab - rau yav hmo ntuj. Nyob rau hauv chickens, sticks nyob rau hauv lub retina yog yuav luag tsis tuaj, thiab yog li ntawd nrog hnub poob lawv tiag tiag ua qhov muag tsis pom. Vim hais tias ntawm no feature, ib tug kab mob nyob rau hauv uas tib neeg yog tsis muaj zog los ntawm lub zeem muag hmo ntuj, thiab hu ua hmo ntuj dig muag.
Ua rau kev tsaus ntuj nti
Tus kab mob no tshwm sim los ntawm kev ua txhaum ntawm qhov piv txwv ntawm cov hlua khi thiab cov pas nrig hauv lub qhov muag tib neeg, qhov txo qis ntawm cov pas nrig lossis cov yam ntxwv mob ntawm lawv tus qauv, nrog rau vim tsis muaj kev cuam tshuam rau kev hloov pigment ntawm rhodopsin, uas yog nyob hauv cov nrog.
Nws yog txoj kev cai kom paub qhov txawv ntawm peb hom hmo ntuj dig muag:
- congenital;
- Qhov tseem ceeb;
- symptomatic.
Qhov feem ntau yog qhov tseem ceeb ntawm kev tsaus ntuj. Tus kab mob no tuaj yeem tsim tawm tsam ntawm cov kev tsis txaus siab, vim yog tsis muaj cov vitamins, nyob rau hauv thawj qhov chaw - vitamin A. Tsis tas li ntawd, nws tuaj yeem tshwm sim los ntawm ntshav dawb, mob siab, mob qaug zog ntawm lub cev, raug ntau yam co toxins.
Symptomatic night blindness tsim tawm tsam ntawm keeb kwm ntawm qhov muag kab mob, xws li glaucoma, retinitis pigmentosa, qib siab myopia.
Lub qhov muag ploj thaum tsaus ntuj yog feem ntau tshwm sim los ntawm qee cov kev mob ntawm cov keeb kwm, tshwj xeeb tshaj yog, cov keeb pegment retinitis lossis Asher syndrome.
Cov tsos mob ntawm kev tsaus ntuj yav tsaus ntuj
Nrog cov qoob qaib dig muag, pom ntawm qhov muag pom tsis meej hauv cov teeb meem uas tsis tshua pom kev. Nws qhov sharpness decreases, khoom muaj peev xwm saib fuzzy, qhov muag plooj, lub tshav pob ntawm saib narrows, xim xaav yog ua txhaum. Feem ntau qhov kev xaav ntawm xiav xim xis, los yog tsis pom kev xim txhua yam hauv lub twilight thiab hmo ntuj. Nws tseem ua tau kom qhov muag pom ua ntej qhov muag ntawm qhov tsaus ntuj nti thaum lub sijhawm hloov ntawm chav illuminated mus rau qhov tsaus ntuj nti.
Yuav kho qhov muag tsis pom yav hmo ntuj li cas?
Nws yuav tsum tau sau tseg tias kev kho mob ntawm kev tsaus ntuj yav hmo ntuj yog nyob ntawm nws hom thiab yam uas ua rau nws.
Tus kab mob ntawm ib hom tshuaj tseem ceeb nws tus kheej tau yooj yim tshaj plaws rau kev kho mob. Txij li ntau feem ntau hom kab mob no hmo ntuj vim los ntawm kev tsis muaj vitamin A, ces tshem tawm tus kab mob nws yog txaus haus ib hom tshuaj vitamins.
Yog tias tsis muaj vitamin A tau tshwm sim los ntawm kev noj cov tshuaj uas yog nws cov antagonist (piv txwv li, quinine), cov tshuaj yuav tsum raug muab tshem tawm tam sim ntawd thiab cov kev haus ntawm cov vitamins yuav tsum tau ua kiag tam sim ntawd. Thaum hmo ntuj dig muag yog tshwm sim los ntawm lub siab, kab mob thiab cov zoo li, thawj hom kab mob feem ntau raug kho.
Qhov tsuas yog kev tiv thaiv ntawm hom kab mob no yog kev noj zaub mov zoo. Koj yuav tsum tau noj carrots, zaub qhwv, citrus txiv hmab txiv ntoo, kua txiv hmab txiv ntoo, daim siab ntses thiab cov tsiaj.
Nrog cov tsos mob ntawm cov tsos mob, ua ntej kho tus kab mob lwm lub qhov muag. Qhov no tuaj yeem yog xaiv qhov tseeb tsom iav thiab siv cov tshuaj siv firming rau myopia. Noj tshuaj thiab, yog tias tsim nyog, kev phais rau cataracts lossis glaucoma.
Lub plab ntawm qhov muag pom ntawm qhov tsaus ntuj tsis teb rau kev kho mob, thiab muaj qhov ua rau lub qhov muag tsis pom kev tsawg zuj zus.