In today’s modern world, our eyes are constantly exposed to blue light. But what exactly is blue light and how does it affect our eyes?
What is Blue Light?
Many may be unaware that the primary source of blue light is from sunlight. It’s what makes the sky appear blue. But there are many man-made forms of blue light which can be found in computer devices, smartphones, TVs, along with LED and fluorescent lights.
Just like the sun, blue light has both benefits and dangers that come along with it.
The Dangers of Blue Light
The makeup of our eyes are not good at blocking blue light from reaching the retina, the light-sensitive portion of our eyes. Too much blue light from electronic devices or lights can lead to digital eye strain. Excessive blue light at night time can disrupt sleep patterns and increase daytime fatigue. Lab studies have shown that too much blue light can damage the cells of our retinas, which can lead to macular degeneration and even permanent vision loss.
There is not enough evidence to determine exactly how much blue light is too much. But the concern is already out there amongst family eye care professionals, as blue light-emitting devices have become an undeniable part of life today.
How to Protect Your Eyes
Not all blue light is bad, however. Some blue light exposure is important for our health. Blue light increases alertness, helps memory and cognitive function, and boosts our mood.
But it’s important to protect our eyes from too much blue light. Take breaks from your screens, use blue light filters, and utilize protective eye wear as needed.
Contact Pycraft Family Eye Care, your Wooster family eye care professionals, for more information about blue light and ways to protect against it.