What’s the Problem with Blue Light?


And I Guess That’s Why They Call It the Blues!

The human eye is sensitive to only visible light.  Visible light is that part of the electromagnetic spectrum that is seen as colours: violet, indigo, blue, green, yellow, orange and red.  Blue light has a very short wavelength, and so produces a higher amount of energy. Studies suggest that, over time, exposure to the blue end of the light spectrum could cause serious long-term damage to your eyes.

Blue light can help elevate your mood and boost awareness, but chronic exposure to blue light at night can lower the production of melatonin, the hormone that regulates sleep and disrupts your circadian rhythm.

Harvard researchers have linked working the night shift and exposure to blue light at night to several types of cancer (breast, prostate) diabetes, heart disease, obesity and an increased risk for depression.

Researchers aren’t exactly sure why exposure to blue light at night seems to have such detrimental effects on our health, but it is known that exposure to light suppresses the secretion of melatonin and lower melatonin levels might explain the association with these types of health problems.

Where Does Blue Light Exposure Come From?

Blue light is present naturally in sunlight, but it is artificially produced by screens of all sorts.  With the rise of digital screens, and the tendency of especially children to hold these screens close to their eyes for prolonged periods of time, such as watching movies on your phone, blue light is being implicated in mood swings, anger frustration, lack of sleep and chronic underperformance in school.

Why are Your Blue Light Protection Lenses Better Than Others?

Many stores and websites ell glasses that block blue light to some degree.  But Darin has been on a quest to discover the best blue-blocking lenses available.  Rather than the inferior coatings, which most blue limiting lenses use, he has found that far better results are obtained when the blue-blocking ability is within the actual material or matrix of the lens, instead of as a coating.

So come and see us and witness our blue light demonstration.  At $99 for blue guardian and multicoat combined, it’s a great and inexpensive way to protect you and your child’s eyes as you use technology.


Call our friendly staff today for an appointment on 07 5457 3333