ordinateur.. à consommer avec modération
Les ados sont de grands passionnés d’informatique. Mais cette activité peut-elle avoir des effets néfastes sur leur santé ?
Attention au mal de dos- Ecran et souris font désormais partie de l’univers de nos enfants, avec la bénédiction des parents, pour qui ordinateur rime avec réussite scolaire. Quelques mesures, souvent de simple bon sens, permettent de limiter les effets néfastes des nombreuses heures passées devant l’ordinateur. Les ados s’installent en effet face à leur « ordi » comme devant n’importe quelle table : ils gigotent, se penchent en avant, se tortillent… Des positions qui favorisent les douleurs dans le dos et les épaules.
Nos conseils-Le siège doit être ajusté de manière à ce que le haut de l’écran soit à la hauteur des yeux. Et comporter un dossier sur lequel l’ado peut reposer son dos. Pour éviter aux plus petits d’avoir les jambes ballantes, prévoyez un repose-pieds. A défaut, une pile d’annuaires fera l’affaire. Pour soutenir le bas du dos, pensez au chandail roulé autour de la taille. Votre fils ou votre fille doit, enfin, se dégourdir les jambes régulièrement.
Des risques pour la vision ? -Picotements, vision floue, éblouissements, maux de tête… Le travail sur ordinateur a-t-il réellement des effets néfastes sur la vision ? Il faut savoir que, quand on fixe un écran, on cligne environ cinq fois moins des yeux et on a tendance à les garder écarquillés, donc à exposer davantage nos globes oculaires à l’air. D’où cette sensation de gêne et l’impression d’avoir les yeux secs. Rien de grave, cependant. Il est établi que le travail sur écran ne provoque pas de pathologies oculaires, mais qu’il révèle parfois celles passées inaperçues. En est-il de même pour les enfants et les adolescents ? Aucune étude ne permet de l’affirmer. Il est en tout cas recommandé de renforcer la surveillance de la vue chez les jeunes, compte tenu de la généralisation des activités sur écran, à l’école mais surtout à la maison.
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