The study demonstrates that exposure to 670-nm red light can improve mitochondrial function in the retina, enhancing vision, particularly for individuals over 40. The therapy showed significant improvement in color contrast sensitivity, especially in the blue visual axis, and also improved rod function. Younger participants did not show noticeable changes, indicating that the benefits are more evident in aging populations where mitochondrial decline is more pronounced.
https://academic.oup.com/biomedgerontology/article/75/9/e49/5863431
Researchers at University College London found that exposure to deep red light for three minutes daily can significantly improve declining eyesight in people over 40. The red light boosts mitochondrial energy production in retinal cells, leading to enhanced color vision and peripheral sight. This approach offers a simple, low-cost method to restore some vision loss associated with aging, though more research is needed due to the small scale of the study.
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