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Do blue light glasses really work? Does blue light from screens actually damage your eyes — or just cause strain?

In this episode of Days of Our Eyes, Dr. King and Dr. Cha break down the truth about blue light, digital eye strain, and whether the trendy blue light glasses are worth it. From dry eye and focus fatigue to sleep disruption, they explain what the science actually says — plus share easy tips like the 20-20-20 rule to keep your eyes comfortable.

1:15 – Blue light explained: what it really is
3:40 – Why our eyes struggle to focus blue light
6:20 – Does blue light cause eye damage?
8:10 – Screen time, blinking less & dry eye problems
11:05 – Blue light vs. bad screen habits (the real issue)
13:00 – The 20-20-20 rule: simple fix for eye strain
15:00 – Blue light and sleep disruption (circadian rhythm)
18:40 – Visual hygiene tips for healthy screen use
21:30 – Final takeaway: strain vs. damage

👀 Topics we cover

Are blue light glasses worth it?

Does blue light actually damage eyes?

Why screen habits matter more than blue light itself

How blue light affects sleep cycles

Tips to reduce eye strain & improve visual hygiene

👉 If you’ve ever wondered whether blue light is harming your eyes — this video is for you!

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⚠️ Medical Advice Disclaimer:
The information provided in this video is for general informational purposes only and is not intended as medical advice. The content presented in this video represents our medical opinion based on our knowledge and experience as healthcare professionals. However, it is essential to note that we are not your personal healthcare providers, and the information presented in this video should not be considered a substitute for professional medical advice, diagnosis, or treatment.