05/01/2026
🌱 Myopia is not just about eyes — it’s about lifestyle. 👁️✨
When we talk about children becoming short-sighted, most people think of: 📱 screens
📖 studying
👓 glasses
But growing evidence now shows that nutrition and metabolism may also influence how the eye grows.
Research highlighted by Optometry Times explains that diets high in refined sugar and processed carbohydrates can affect insulin and growth-related pathways — and these pathways may influence eye elongation, which is the key structural change behind myopia.
👉 This means what children eat daily matters, not just for their body, but for their vision development too.
🥗 Healthy eating supports eye health by: • Helping regulate blood sugar and insulin levels
• Supporting normal tissue growth and repair
• Complementing outdoor time and visual habits
• Working together with myopia-control strategies prescribed by eye-care professionals
⚠️ Important reminder:
Diet alone is NOT a treatment for myopia.
But good nutrition + proper eye care + lifestyle habits form a powerful foundation for long-term visual health.
👩⚕️👨⚕️ Talk to your optometrist about: • Myopia risk factors
• Lifestyle and dietary considerations
• Evidence-based myopia management options
• A holistic plan tailored for your child
Because prevention and control work best when we look beyond just glasses.
【分享】The Role of Nutrition in Myopia Control(營養在近視控制的角色:從「高糖代謝壓力」到眼軸風險)
【為何重要】:
近視不只跟「用眼」有關,文章主張:高糖/高升糖負荷飲食造成的代謝壓力,可能透過 IGF 路徑與鞏膜生化改變,讓眼軸更容易被推著長,衛教可以多一個「可執行的生活介入點」。
【文章三個主張】:
1. 高升糖負荷(GL)飲食 → 高胰島素 → IGF 相關路徑,可能促進眼軸延長,精緻碳水/糖提高胰島素與自由 IGF-1、降低IGF 結合蛋白,理論上可能讓鞏膜/脈絡膜的生長調控更失衡。
2. 鞏膜變薄不是「突然」:與膠原/基質代謝(含視黃酸、玻尿酸)相關,文中提到視黃酸(vitamin A 代謝物)與醣胺聚醣/玻尿酸等,牽涉鞏膜基質合成與厚度,可能影響眼球結構穩定性。
3. 營養不是單一補充品,而是「整體飲食品質+維生素支持」的組合,可能相關的營養素包含維生素 A、B2、C、D 等;重點在「避免高 GL 飲食」並建立更穩定的營養型態,而非只靠單點補充。
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Shared Summary
From glycemic load and metabolic stress to axial elongation risk
Why It Matters
Myopia is often framed as a consequence of visual behavioralone, yet this article argues that metabolic stress—particularly from high–glycemic load (GL) diets—may also influence ocular growth. By linking nutrition to insulin–IGF signaling and scleral biochemistry, the authors propose dietary quality as a modifiable, actionable component of myopia prevention and control, complementing optical and behavioral strategies.
Three Key Points
1. High–glycemic load diets may promote axial elongation via insulin–IGF pathways
The article summarizes evidence suggesting that diets rich in refined carbohydrates and sugars lead to elevated insulin levels, increased free IGF-1, and reduced IGF-binding proteins. This metabolic environment may dysregulate growth signaling within the sclera and choroid, theoretically lowering resistance to axial elongation. While causal proof in humans is still evolving, the biological plausibility supports nutrition as a relevant risk modifier.
2. Scleral thinning is a gradual biochemical process—not an abrupt event
Axial elongation is not simply mechanical stretching. The authors highlight the role of scleral extracellular matrix remodeling, involving collagen turnover and matrix components such as glycosaminoglycans and hyaluronic acid. Vitamin A metabolism—via retinoic acid signaling—is also discussed as a regulator of scleral matrix synthesis and thickness, potentially influencing long-term structural stability of the eye.
3. Nutrition is about dietary patterns, not single supplements
Rather than promoting isolated supplementation, the article emphasizes overall dietary quality. Nutrients potentially relevant to ocular growth regulation include vitamins A, B2, C, and D, but the primary message is to reduce chronic high–glycemic load intake and establish a more metabolically stable eating pattern.
In this framework, nutrition acts as a foundational lifestyle modifier, supporting ocular health alongside outdoor time, sleep, and visual hygiene.
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Take-Home Message
Myopia is influenced by more than optics and screen time. By increasing metabolic stress, high–glycemic load diets may contribute to biological conditions that Favor axial elongation, adding another layer of risk during critical growth periods.
While nutrition alone is unlikely to replace established myopia-control interventions, improving dietary quality represents a practical, low-risk adjunct—one that clinicians can incorporate into holistic myopia counselling as part of long-term risk reduction.
🔍 Link in the first comment.
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✍️ #近視管理 #近視控制 #營養與近視 #高升糖負荷 #代謝壓力 #眼軸長 #鞏膜重塑