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4. Dry Eye. National Eye Institute. https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/dry-eye. Accessed January 15, 2026.
5. Digital Eye Strain. National Eye Institute. https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/digital-eye-strain. Accessed January 15, 2026.
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