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Blue light Lens Type

How Blue Light Affects the Eye?

Blue light is a high-energy, short-wavelength light (380-500 nm) that is emitted by the sun, digital screens, LED lighting, and fluorescent bulbs.

While natural blue light is essential for regulating sleep-wake cycles and boosting alertness, excessive exposure—especially from artificial sources—can have negative effects on eye health.

Effects on the Eye:

1. Digital Eye Strain (Computer Vision Syndrome):
Prolonged screen exposure can cause eye fatigue, dryness, blurred vision, and headaches due to excessive blue light and reduced blinking.
2. Disruption of Sleep Patterns:
Blue light affects melatonin production, making it harder to fall asleep when exposed to screens before bedtime.
3. Potential Retinal Damage:
Some studies suggest that long-term exposure to high levels of blue light may contribute to retinal cell damage and increase the risk of age-related macular degeneration (AMD).
4. Increased Risk of Myopia (Nearsightedness):
Excessive screen time, especially in children, may contribute to the progression of myopia by affecting how the eye focuses light.

How to Reduce Blue Light Exposure?

  • Use blue light filters on screens or wear blue light-blocking glasses.
  • Follow the 20-20-20 rule: Every 20 minutes, look at something 20 feet away for 20 seconds.
  • Reduce screen brightness and use night mode settings.
  • Limit screen time before bed to avoid sleep disturbances.

While blue light is not inherently harmful in moderation, mindful exposure can help protect eye health and improve overall well-being.

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