{"id":1560,"date":"2026-09-30T14:00:00","date_gmt":"2026-09-30T13:00:00","guid":{"rendered":"https:\/\/www.nutrixeal.fr\/expertise\/?p=1560"},"modified":"2026-09-30T13:32:14","modified_gmt":"2026-09-30T12:32:14","slug":"lumiere-bleue-ecrans-proteger-yeux","status":"publish","type":"post","link":"https:\/\/www.nutrixeal.fr\/expertise\/lumiere-bleue-ecrans-proteger-yeux\/","title":{"rendered":"Lumi\u00e8re bleue \/ \u00e9crans : comment s’en prot\u00e9ger ?"},"content":{"rendered":"\n

La lumi\u00e8re bleue est pr\u00e9sente naturellement dans les rayonnements du soleil. Cependant, lorsqu\u2019elle est \u00e9mise en plus grande quantit\u00e9 par des sources de lumi\u00e8re artificielle (\u00e9crans et \u00e9clairages LED), elle repr\u00e9sente un danger pour la sant\u00e9 et notamment pour la vue.<\/p>\n\n\n\n

Qu’est-ce que la lumi\u00e8re bleue ?<\/h2><\/div>\n\n\n\n

L\u2019\u0153il humain per\u00e7oit les ondes lumineuses correspondant \u00e0 une bande \u00e9troite de fr\u00e9quences, \u00e9galement appel\u00e9es longueurs d\u2019onde. On parle du spectre des ondes visibles. La lumi\u00e8re bleue correspond \u00e0 l\u2019extr\u00e9mit\u00e9 du spectre visible la plus proche des rayons UV. Il s\u2019agit \u00e9galement de la couleur de lumi\u00e8re visible la plus \u00e9nerg\u00e9tique et par cons\u00e9quent la plus dangereuse en cas de forte exposition.<\/p>\n\n\n\n

La lumi\u00e8re naturelle provenant du soleil contient des rayons bleus. Cependant, les \u00e9crans et les ampoules \u00e9conomiques LED produisent une quantit\u00e9 de lumi\u00e8re bleue sup\u00e9rieure \u00e0 celle de la lumi\u00e8re du soleil et sup\u00e9rieure \u00e9galement \u00e0 celle des anciennes ampoules incandescentes. Or avec le d\u00e9veloppement des nouvelles technologies, notre exposition \u00e0 ces \u00e9clairages artificiels ne cesse de cro\u00eetre. De plus, la quantit\u00e9 de lumi\u00e8re bleue \u00e9mise augmente encore au fur et \u00e0 mesure que les LED des ampoules et des \u00e9crans vieillissent !<\/p>\n\n\n\n

\"Spectre<\/figure><\/div>\n\n\n\n

Quel impact la lumi\u00e8re bleue a-t-elle sur nos yeux ?<\/h2><\/div>\n\n\n\n

Lorsque les rayons lumineux parviennent \u00e0 nos yeux, ils commencent par traverser la corn\u00e9e et le cristallin, mais c\u2019est la r\u00e9tine, c\u2019est-\u00e0-dire la couche interne du fond de l\u2019\u0153il, qui permet de les percevoir. Les photor\u00e9cepteurs de la r\u00e9tine traduisent les signaux lumineux en informations, qui sont ensuite transmises au nerf optique pour \u00eatre interpr\u00e9t\u00e9es par le cerveau. Pour fonctionner, ces photor\u00e9cepteurs doivent \u00eatre nourris par la couche de cellules riches en pigments (\u00e9pith\u00e9lium pigmentaire) sur laquelle ils reposent.<\/p>\n\n\n\n

Plusieurs \u00e9tudes sugg\u00e8rent que l\u2019exposition r\u00e9p\u00e9t\u00e9e \u00e0 la lumi\u00e8re bleue peut endommager cet \u00e9pith\u00e9lium pigmentaire de la r\u00e9tine et les photor\u00e9cepteurs qui en d\u00e9pendent, en g\u00e9n\u00e9rant un stress oxydant. En absorbant la lumi\u00e8re bleue, certains r\u00e9sidus de l\u2019\u00e9pith\u00e9lium pigmentaire produiraient en exc\u00e8s des radicaux libres. C\u2019est le d\u00e9s\u00e9quilibre entre la quantit\u00e9 de radicaux libres et d\u2019antioxydants, n\u00e9faste pour la sant\u00e9, qui est appel\u00e9 stress oxydant.<\/p>\n\n\n\n

Pour se pr\u00e9munir de l\u2019effet de la lumi\u00e8re bleue avec une efficacit\u00e9 constante tout au long de notre vie, il faudrait donc \u00eatre dot\u00e9 d\u2019une d\u00e9fense antioxydante de plus en plus performante. Or avec le vieillissement, c\u2019est l\u2019inverse qui se produit. Avec l\u2019\u00e2ge, la r\u00e9tine devient de plus en plus vuln\u00e9rable aux d\u00e9g\u00e2ts induits par ce type de lumi\u00e8re. Il est possible que cela contribue au d\u00e9veloppement de la d\u00e9g\u00e9n\u00e9rescence maculaire li\u00e9e \u00e0 l\u2019\u00e2ge (DMLA).<\/p>\n\n\n\n

Il a \u00e9galement \u00e9t\u00e9 d\u00e9montr\u00e9 que la lumi\u00e8re bleue joue un r\u00f4le majeur dans la r\u00e9gulation du rythme circadien et donc du sommeil. L\u2019exposition aux \u00e9crans ou la lecture \u00e9clair\u00e9e par des ampoules LED le soir avant le coucher peuvent donc retarder l\u2019endormissement et avoir des effets plus n\u00e9gatifs que la m\u00eame exposition en journ\u00e9e.<\/p>\n\n\n\n

Lumi\u00e8re bleue : comment s’en prot\u00e9ger ?<\/h2><\/div>\n\n\n\n

Pour pr\u00e9server ses yeux des d\u00e9g\u00e2ts induits par la lumi\u00e8re bleue, plusieurs strat\u00e9gies sont possibles :<\/p>\n\n\n\n

    \n
  • Limiter le temps pass\u00e9 devant les \u00e9crans<\/li>\n<\/ul>\n\n\n\n
      \n
    • Utiliser au maximum l\u2019\u00e9clairage naturel et r\u00e9duire l\u2019\u00e9clairage artificiel<\/li>\n<\/ul>\n\n\n\n
        \n
      • Porter des lunettes r\u00e9fl\u00e9chissant la lumi\u00e8re bleue<\/li>\n<\/ul>\n\n\n\n
          \n
        • Adopter une alimentation protectrice et\/ou des compl\u00e9ments alimentaires sp\u00e9cifiques<\/li>\n<\/ul>\n\n\n\n
          \"protection<\/figure><\/div>\n\n\n\n

          Lumi\u00e8re bleue et nutraceutique<\/h2><\/div>\n\n\n\n

          Lut\u00e9ine et z\u00e9axanthine :<\/h3><\/div>\n\n\n\n

          La lut\u00e9ine et la z\u00e9axanthine sont deux pigments de la famille des carot\u00e9no\u00efdes, pr\u00e9sents en tr\u00e8s faible quantit\u00e9 dans l\u2019alimentation (oranges et fruits jaunes). On les retrouve en forte concentration dans la r\u00e9tine, o\u00f9 ils jouent le r\u00f4le de filtre protecteur contre la lumi\u00e8re bleue. Ils agissent de plus en tant qu\u2019antioxydant, pi\u00e9geant les radicaux libres (induits notamment par la lumi\u00e8re bleue), r\u00e9duisant ainsi le stress oxydant. Les \u00e9tudes sur la lut\u00e9ine, la z\u00e9axanthine et la lumi\u00e8re bleue sont tr\u00e8s nombreuses. Les r\u00e9sultats sur ces carot\u00e9no\u00efdes montrent \u00e9galement qu\u2019ils pourraient contribuer \u00e0 la sensibilit\u00e9 aux contrastes.<\/p>\n\n\n\n

          Extraits de myrtilles :<\/h3><\/div>\n\n\n\n

          Les extraits de myrtilles, qui contiennent des anthocyanes, puissants antioxydants, sont connus pour aider \u00e0 prot\u00e9ger les yeux du vieillissement. Une \u00e9tude in vitro<\/em> a \u00e9galement sugg\u00e9r\u00e9 que les extraits de myrtilles pourraient, par leur action antioxydante, prot\u00e9ger les photor\u00e9cepteurs de la r\u00e9tine des d\u00e9g\u00e2ts induits par la lumi\u00e8re bleue des LED.<\/p>\n\n\n\n

          Zinc :<\/h3><\/div>\n\n\n\n

          Le zinc est un oligo-\u00e9l\u00e9ment connu pour contribuer au maintien d\u2019une vision normale et prot\u00e9ger les cellules du stress oxydant. Il est en particulier indispensable \u00e0 l\u2019activit\u00e9 de l\u2019enzyme antioxydante superoxyde dismutase (SOD1).<\/p>\n\n\n\n

          Lumi\u00e8re bleue et compl\u00e9ments alimentaires : gamme Nutrixeal<\/h2><\/div>\n\n\n\n

          Un complexe sp\u00e9cifique : Blue Light Protect<\/h3><\/div>\n\n\n\n

          Blue Light Protect contient l’ensemble des nutriments les plus protecteur vis \u00e0 vis de la lumi\u00e8re bleue : lut\u00e9ine, z\u00e9axanthine, anthocyanes de myrtilles et zinc ch\u00e9lat\u00e9.<\/p>\n\n\n\n

          1 g\u00e9lule par jour suffit \u00e0 apporter la dose active utilis\u00e9e dans les \u00e9tudes cliniques.<\/p>\n\n\n\n

          1 flacon de 60 g\u00e9lules dure ainsi 2 mois (\u00e0 1 g\u00e9lule par jour).<\/p>\n\n\n\n

          Produit compl\u00e9mentaire : Hydravea<\/h3><\/div>\n\n\n\n

          Vous avez souvent les yeux secs \u00e0 force de travailler devant des \u00e9crans ?<\/p>\n\n\n\n

          Hydravea est complexe antioxydant \u00e0 base d’huile d’argousier, contenant des omega 3, 6, 7 et 9 et des vitamines, sp\u00e9cifiquement formul\u00e9 pour la sant\u00e9 des yeux et des muqueuses.<\/p>\n\n\n\n

          R\u00e9f\u00e9rences sur la lumi\u00e8re bleue<\/h2><\/div>\n\n\n\n
            \n
          • Jia, Y.-P., Sun, L., Yu, H.-S., Liang, L.-P., Li, W., Ding, H., Song, X.-B., and Zhang, L.-J. (2017). The Pharmacological Effects of Lutein and Zeaxanthin on Visual Disorders and Cognition Diseases. Mol. Basel Switz. 22.<\/li>\n\n\n\n
          • Lima, V.C., Rosen, R.B., and Farah, M. (2016). Macular pigment in retinal health and disease. Int. J. Retina Vitr. 2, 19.<\/li>\n\n\n\n
          • Ogawa, K., Kuse, Y., Tsuruma, K., Kobayashi, S., Shimazawa, M., and Hara, H. (2014). Protective effects of bilberry and lingonberry extracts against blue light-emitting diode light-induced retinal photoreceptor cell damage in vitro. BMC Complement. Altern. Med. 14, 120.<\/li>\n\n\n\n
          • Tosini, G., Ferguson, I., and Tsubota, K. (2016). Effects of blue light on the circadian system and eye physiology. Mol. Vis. 22, 61\u201372.<\/li>\n<\/ul>\n\n\n\n\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"

            Qu’est ce que la lumi\u00e8re bleue ? Quel est son effet sur nos yeux et comment s’en prot\u00e9ger ? Quels actifs nutraceutiques choisir ?<\/p>\n","protected":false},"author":3,"featured_media":1568,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","nutrixeal_featured":false,"nutrixeal_most_read":false,"footnotes":""},"categories":[25],"tags":[],"class_list":["post-1560","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sante-oculaire-articles-et-conseils-nutritionnels"],"yoast_head":"\nLumi\u00e8re bleue et \u00e9crans : comment prot\u00e9ger ses yeux ?<\/title>\n<meta name=\"description\" content=\"Quels sont les effets de la lumi\u00e8re bleue des \u00e9crans sur les yeux ? 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