Red Light Therapy for the Retina: Clinical Evidence and Practical Use
Red Light Therapy and the Retina
The retina is a critical layer of tissue responsible for converting light into signals to the brain. Over time, this delicate tissue suffers from oxidative stress, aging, and blue light exposure.
Key Clinical Findings
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2020 Study – Age-Related Vision Decline
Just 3 minutes of 670nm red light daily improved color contrast vision by 22% in adults over 40. -
2018 Study – Macular Degeneration
Red light therapy reduced inflammation and slowed AMD progression in animal models. -
2021 Study – Diabetic Retinopathy
Near-infrared light enhanced retinal blood flow and reduced oxidative damage in diabetic patients.
How to Use RLT for Eye Health
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Wavelength: 630–670nm
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Session Duration: 2–5 minutes
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Frequency: 3–5 times per week
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Method: Use specially designed red light eye devices. Do not stare directly into bright light.