Umbono - ubumfama ebusuku

Ubumfama bobusuku ngumbono ombi ebusuku okanye ekukhanyeni okufipheleyo.

Ubumfama bobusuku bunokubangela iingxaki ngokuqhuba ebusuku. Abantu abangaboniyo ebusuku bahlala benengxaki yokubona iinkwenkwezi ngobusuku obuzolileyo okanye ukuhamba kwigumbi elimnyama, njengendawo yemidlalo yeqonga.

Ezi ngxaki zihlala zisiba mbi emva nje kokuba umntu ekwindawo ekhanyayo. Iimeko ezinzima zinokuba nexesha elinzima lokuziqhelanisa nobumnyama.

Unobangela wobumfama basebusuku buwela kwiindidi ezi-2: ziyanyangeka kwaye azinyangeki.

Izizathu ezinokunyangwa:

• Iimpawu
• Ukubona ngaphambili
• Ukusetyenziswa kwamachiza athile
• Ukunqongophala kukaVitamin A (kunqabile)

Izizathu ezingalawulekiyo:

• Iziphene zokuzalwa, ngakumbi ukuzalwa okungaboniyo ebusuku
• I-Retinitis pigmentosa

Thatha amanyathelo okhuseleko ukunqanda iingozi kwiindawo zokukhanya okuncinci. Kuphephe ukuqhuba imoto ebusuku, ngaphandle kokuba ufumana imvume yogqirha wamehlo akho.

Izongezo zeVitamin A zinokuba luncedo ukuba une-vitamin A. Buza umboneleli wakho wezempilo ukuba ungathatha malini, kuba kunokwenzeka ukuba uthathe kakhulu.

Kubalulekile kuvavanyo olupheleleyo lwamehlo ukufumanisa unobangela, onokuthi unyangeke. Fowunela ugqirha wamehlo ukuba ngaba iimpawu zobumfama zasebusuku ziyaqhubeka okanye zichaphazela kakhulu ubomi bakho.

Umboneleli wakho uya kukuvavanya kunye namehlo akho. Injongo yovavanyo lonyango kukumisela ukuba ingxaki inokulungiswa na (umzekelo, ngeiglasi ezintsha okanye ukususwa kwamehlo), okanye ukuba ingxaki ibangelwa yinto enganyangekiyo.

Umboneleli unokukubuza imibuzo, kubandakanya:

• Bunzima kangakanani ubumfama bobusuku?
• Ziqale nini iimpawu zakho?
• Ngaba yenzeka ngesiquphe okanye ngokuthe ngcembe?
• Ngaba iyenzeka ngalo lonke ixesha?
• Ngaba ukusebenzisa iilensi zokulungisa kuphucula umbono wasebusuku?
• Ngaba wakha wahlinzwa ngamehlo?
• Ngawaphi amayeza owasebenzisayo?
• Injani indlela otya ngayo?
• Ngaba ukhe wakonzakalisa amehlo okanye intloko?
• Ngaba unayo imbali yosapho yeswekile?
• Ngaba unolunye utshintsho lombono?
• Zeziphi ezinye iimpawu onazo?
• Ngaba unoxinzelelo olungaqhelekanga, unxunguphalo, okanye uloyiko lobumnyama?

Uvavanyo lwamehlo luya kubandakanya:

• Ukuvavanywa kombono wombala
• Ukukhanya kwesibane somfundi
• Ukutsala
• Uvavanyo lwe-retinal
• Sika uviwo lwesibane
• Ubunzima bokubonakalayo

Olunye uvavanyo lunokwenziwa:

• I-Electroretinogram (ERG)
• Indawo ebonakalayo

Nyctanopia; Nyctalopia; Ubumfama ebusuku

• I-anatomy yangaphandle yamehlo nangaphakathi

UCao D. Umbono wombala kunye nombono ebusuku. Ku: Schachat AP, Sadda SVR, Hinton DR, Wilkinson CP, Wiedemann P, ii-eds. URetina kaRyan. Umhla wesi-6. IPhiladelphia, PA: Elsevier; I-2018: isahluko 12.

ICukras CA, uZein WM, uCaruso RC, uSieving PA. Ukuqhubela phambili kunye "nokuma" njengelifa lokuhla komzimba. Ku: Yanoff M, Duker JS, ii-eds. Ophthalmology. Umhla we-5. IPhiladelphia, PA: Elsevier; I-2019: isahl. 6.14.

UDuncan JL, uPierce EA, uLaster AM, et al. Ukwehla okubabazekayo kwilifa: ukubonakala komhlaba ngoku kunye nezikhewu zolwazi. Guqula iVis Sci Technol. 2018; 7 (4): 6. IINKCUKACHA: 30034950 pubmed.ncbi.nlm.nih.gov/30034950/.

UThurtell MJ, uTomsak RL. Ukuphulukana nokubonakalayo. Ku: Daroff RB, Jankovic J, Mazziotta JC, Pomeroy SL, ii-eds. I-Neurology kaBradley kwiKlinikhi yokuziqhelanisa. Umhla wesi-7. IPhiladelphia, PA: Elsevier Saunders; 2016: isahluko 16.