A study conducted with children in Hong Kong reveals that a diet rich in omega-3 fatty acids may reduce the risk of developing myopia. Researchers observed that those with higher intake of these nutrients, found in fatty fish like salmon, sardines, and in seeds, showed shorter axial eye length, a key factor in the progression of nearsightedness.
Myopia is rapidly increasing worldwide, especially among children, and it is estimated that nearly half of the global population will be affected by 2050. Risk factors include excessive screen time, indoor lifestyles, and limited exposure to natural light. Now, nutrition emerges as a potential tool in prevention, with omega-3s playing a central role.
Previous studies in animal models have shown that omega-3 supplementation, specifically DHA and EPA, may slow down or even block the advance of myopia by improving blood flow in the uveal tract (the eye’s vascular layer) and preventing scleral hypoxia, a mechanism linked to its progression.
Why can including more omega-3 in the diet make a difference from an early age?
Because these fatty acids help maintain proper ocular blood flow, reduce hypoxic stress in key eye structures, and act as a natural barrier against structural changes that drive myopia. Adding fatty fish, flaxseed, or supplements could become an accessible and safe preventive strategy.
