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Vitamin D May Reflect Myopia Risk

Narrative review linked lower vitamin D levels to greater myopia risk and higher omega-3 intake to lower risk, though outdoor exposure may explain the vitamin D association.

  • By

  • Andrea Surnit

  • May 26, 2026

  • 4 min

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  • 1

    Lower serum vitamin D levels are associated with higher myopia prevalence and longer axial length in young patients.

  • 2

    Omega-3 polyunsaturated fatty acids are identified as a probable protective factor against myopia.

  • 3

    Evidence does not establish a direct causal role for vitamin D in myopia development, suggesting outdoor exposure may be more significant.

  • 4

    The review emphasizes that most evidence is observational, limiting causal inference regarding nutritional interventions for myopia.

  • 5

    Clinically, the findings do not support vitamin D testing or supplementation for myopia prevention, focusing instead on broader behavioral factors.

Original Source(s)

Vitamin D May Reflect Myopia Risk

  • by Andrea Surnit

  • May 26, 2026

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