{
  "id": 12542065,
  "title": "Mythen zu Kurzsichtigkeit: Gegen Kurzsichtigkeit helfen weder Training noch Karotten",
  "url": "https://urgent.news/2026/10/07/mythen-zu-kurzsichtigkeit-gegen-kurzsichtigkeit-helfen-weder-training",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-10-07T04:00:07.000Z",
  "source": {
    "name": "Handelsblatt",
    "slug": "handelsblatt",
    "url": "https://www.handelsblatt.com/technik/forschung-innovation/mythen-zu-kurzsichtigkeit-gegen-kurzsichtigkeit-helfen-weder-training-noch-karotten/100260278.html"
  },
  "original_language": "de",
  "account": "Recent internet advice about curing nearsightedness (myopia) through self-healing, muscle training, or diet has been debunked by experts. A Facebook user claimed their eyeglass prescription worsened after stopping to wear glasses, eating more carrots and spending time in the sun. However, these claims have no scientific backing. Research indicates the structural elongation of the eyeball is irreversible, and any changes in eyeglass prescription could be due to daily variations and measurement conditions, not a reduction in nearsightedness. Nearsightedness, or myopia, causes distant objects to appear blurry because the eyeball is too long relative to its optical power, focusing light in front of the retina instead of on it. This condition often develops during childhood when the eyeball is growing. While genetics and environmental factors play a role in myopia onset, excessive time spent outdoors in sunlight during childhood may help prevent or delay its development. Conversely, prolonged close work on screens has been linked to a higher risk of myopia development. Sunlight exposure in childhood may help prevent or slow the progression of existing myopia, but it won't reverse structural changes in the eyeball. Even for adults, spending a lot of time in sunlight won't eliminate existing myopia. Eye exercises or training also fail to change the eyeball's length, according to a Chinese study published in the \"Eye\" journal. The German health insurer AOK summarizes the research findings, stating there's no scientific evidence that eye exercises improve vision or prevent myopia progression. The curvature of the eyeball is the cause of myopia, not a muscle issue. Therefore, exercises can't eliminate the optical cause of myopia. Structured changes causing myopia cannot be reversed by beta-carotene found in carrots or certain supplements, as demonstrated by a 2025 study published in the \"Nutrients\" journal. Corrective lenses and contact lenses adjust the eye's optical power to ensure a sharp image on the retina, and laser surgery changes only the refractive power, not the eyeball length.",
  "summary": "Kurzsichtigkeit lässt sich nicht rückgängig machen. Der Faktencheck zeigt: Übungen, bestimmte Lebensmittel oder Sonnenlicht ersetzen keine Brille.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}