Blue light is everywhere and can negatively impact your vision. But what exactly is this light, and how can you protect your eyes?
Blue light is a high-energy visible (HEV) light with a wavelength of 400 to 450 nanometers. It comes from many sources – televisions, smartphones, tablets, and computers. Even LED (light emitting diode) and fluorescent light give off blue light. However, the largest source of blue light is the sun.
Blue light is essential for regulating our circadian rhythm and promoting alertness during the day. However, prolonged exposure to blue light can have negative effects on our vision and overall health.
Here are some of the potential impacts of blue light on vision:
To reduce the impact of blue light on vision, you can take the following steps.
Taking regular breaks from your screen can help reduce eye strain and fatigue. The 20-20-20 rule is a good one to follow: every 20 minutes, take a 20-second break and look at something 20 feet away.
Avoid using devices in dark or low light conditions as this can increase the amount of blue light exposure. Use ambient lighting instead and adjust the brightness of the screen to reduce glare.
Limit the amount of time you spend on digital devices, especially before bedtime. Avoid using screens for at least an hour before sleeping to maintain a healthy sleep-wake cycle.
Regular eye exams can help identify vision problems and recommend appropriate eyewear to help reduce eye strain and blue light exposure. Eye doctors can also help monitor your condition.
Good vision is important. It makes it easier to navigate the world, appreciate its beauty, and engage in various activities. It allows us to read, drive, play sports, recognize faces, and enjoy a host of other activities that require visual acuity. So never take your eyes for granted – protect them from harmful blue light exposure.
When eyes are compromised, you can find help at Gregg Family Eye Care. Visit our offices in Secane or North Wales, Pennsylvania. To schedule an appointment, call (610) 831-4300 or (215) 699-2020.