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Is Blue Light Harmful To My Eyes?

We live in a digital age where the dependence on technology is extremely common. Ipads, cellphones and laptops are used by almost everyone these days. This increased use of digital devices makes our exposure to artificial blue light inevitable. With the amount of screen time we have, a common question I am asked by my patients is ‘Is the blue light harmful to my eyes?’.

The recent pandemic has increased screen time for everyone. People are working from home and Zoom calls are the new normal. Children are enrolled in online learning as a result of the COVID-19 related restrictions. Our exposure to blue light has increased.

Blue light is contained at 400-490nm in the visible light spectrum. Blue light is naturally found in sunlight and is known to have an affect on our sleep. I am often told by many of my patients who use digital devices that they experience symptoms such as blurry vision, eye pain, eye fatigue as just a few examples. I make recommendations to my patients on how to protect ourselves from the artificial blue light which we are exposed to from our digital devices. Here are a few tips:

Reduce screen time and exposure to digital devices
Remember to get enough exposure to sunlight as this can affect the growth and development of the eyes and vision
Follow the 20-20-20 rule: take a 20-second break every 20 minutes and look at something 20 feet away.