How exposure to blue light affects your brain and body

Looking at your phone for a long period of time at night is not going to help your body feel ready for the next day. Exposure to blue light confuses the brain as it mimics the brightness of the sun. This causes the brain to stop producing melatonin, a hormone that gives your body cues to sleep.

Affects of smartphone light:

  1. Disrupt your sleep cycle, which might leave you distracted and impair your memory the next day
  2. Poor night’s sleep can make it harder to learn
  3. Lack of sleep overtime can lead to neurotoxin buildup that makes it harder to get good sleep
  4. Suppressed melatonin levels by blue light exposure are more prone to depression
  5. Disrupting melatonin and sleep can also affect hormones that control hunger, which increases the risk of obesity
  6. Light exposure at night has a connection to increased risk of breast and prostate cancer
  7. Researchers are suspecting that blue light can lead to cataracts
  8. Researchers also indicate that long term exposure can harm the retina


  1. Discuss with your Optometrist or eye care professional about high energy blue light
  2. Invest in lenses with coatings that block out blue light (Essilor, Nikon, Kodak, Hoya, Zeiss)
  3. Invest in BlueTech Lenses

Enhanced Performance

Ensure you’re seeing the best to perform and visit your eye care professional. Understanding and resolving your visual needs will give you the confidence and ability to improve in your daily activities. A comprehensive eye health examination can make a big difference in an individual’s life. The goal is to ensure you’re seeing the best for success.

In the video below, Eye Associates of Don Mills’ patient, Phil Watanabe, is a professional financial stock trader and ultimate player for the Toronto Rush. He understands the importance of clear vision and wears contact lenses and eyeglasses to be able to perform on and off the field. Contact lenses, sport goggles, and vision correction surgery are great solutions for athletes who require vision correction.

Other solutions is Vision Therapy (often called “VT”), which involves activities and procedures specifically designed to improve a patient’s visual skills and visual performance. These activities and challenges are designed and delivered by certified Optometrists. Eating healthy, exercising, and protecting your eyes from the sun are also great tips to preserve visual performance. Talk to your Optometrist to learn more pro tips to enhance your visual performance.