Blue Light and Your Eyes

What you Need to Know

In today’s digital world, many of us spend hours each day staring at screens; phones, computers, tablets, and TVs. These devices emit blue light, a high-energy visible light that can affect both eye comfort and overall health.

How does Blue Light Affect my Eyes?

Extended exposure to blue light can contribute to digital eye strain, causing symptoms such as dry eyes, blurred vision, headaches, and eye fatigue. While blue light from screens hasn’t been proven to cause permanent eye damage, it can make your eyes work harder, leading to discomfort—especially during long screen sessions.

Blue Light and Sleep

One of the biggest concerns with blue light is its effect on sleep. Blue light suppresses melatonin, the hormone that helps regulate your sleep cycle. Using screens late at night may make it harder to fall asleep and reduce sleep quality.

How to Protect Your Eyes

You don’t have to avoid screens altogether to protect your eyes. Simple habits can help.

• Follow the 20-20-20 rule: Every 20 minutes, look at something 20 feet away for 20 seconds.
• Reduce screen brightness and adjust contrast for comfort.
• Use night mode or blue light filters on devices.
• Consider blue light–filtering lenses if you spend long hours on screens.
• Limit screen use before bedtime.

Blue light is a normal part of modern life, but being mindful of your screen habits can go a long way toward protecting your eyes and improving comfort. Regular eye exams can also help ensure your eyes stay healthy in a digital world.