Vitamin A deficiency with night blindness (Q39909): Difference between revisions
From determinar.ia.br - Determine suas informações
Created a new Item |
Changed label, description and/or aliases in pt-br, en |
||
| description / pt-br | description / pt-br | ||
A cegueira noturna (má adaptação à escuridão) é geralmente a manifestação mais precoce da deficiência de vitamina A. Em casos leves, a cegueira noturna é aparente apenas após estresse fótico. As crianças afetadas não se movem mais após o anoitecer e preferem sentar-se em um canto seguro, muitas vezes sem conseguir encontrar sua comida ou brinquedos. A cegueira noturna de início recente em uma criança pré-escolar é praticamente patognomônica da deficiência de vitamina A. Todos os pacientes respondem rapidamente à terapia com vitamina A, geralmente em 48 horas. | |||
| description / en | description / en | ||
Night blindness (poor adaptation to darkness) is generally the earliest manifestation of vitamin A deficiency. In mild cases, night blindness is apparent only after photic stress. Affected children no longer move around after dusk and prefer to sit in a secure corner, often unable to find their food or toys. Night blindness of recent onset in a preschool child is practically pathognomonic of vitamin A deficiency. All patients respond rapidly to therapy with vitamin A, usually within 48 hours. | |||
Revision as of 05:30, 13 August 2026
Night blindness (poor adaptation to darkness) is generally the earliest manifestation of vitamin A deficiency. In mild cases, night blindness is apparent only after photic stress. Affected children no longer move around after dusk and prefer to sit in a secure corner, often unable to find their food or toys. Night blindness of recent onset in a preschool child is practically pathognomonic of vitamin A deficiency. All patients respond rapidly to therapy with vitamin A, usually within 48 hours.
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | 5B55.0 |
||
| English | Vitamin A deficiency with night blindness |
Night blindness (poor adaptation to darkness) is generally the earliest manifestation of vitamin A deficiency. In mild cases, night blindness is apparent only after photic stress. Affected children no longer move around after dusk and prefer to sit in a secure corner, often unable to find their food or toys. Night blindness of recent onset in a preschool child is practically pathognomonic of vitamin A deficiency. All patients respond rapidly to therapy with vitamin A, usually within 48 hours. |
