5 questions (& answers!) you should ask about light from mobile devices

Our eyes need light for color perception, clarity and sharpness of vision but some wavelengths of blue light can be harmful to your eye health and vision. So, we put together our top 5 questions to ask about this effect and about devices in our everyday lives.


1. What is blue light?

Blue light is a high-energy light source emitted by today's digital devices and energy efficient lighting. We tend to not blink properly when staring at the computer (or using our smartphones), thus our eyes don't produce enough tears to protect the front of the eyes, so they may burn and/or feel dry. Remembering to take breaks from screens of all types and blinking can aid in keeping your eyes healthy.

2. Why should I care about blue light?

Research has proven exposure to harmful blue light contributes to serious eye and health conditions, including: eye strain, vision loss, sleep disruption, and is a risk factor for the onset of age-related macular degeneration (a leading cause of severe vision loss and blindness in adults over the age of 60).

3. Is the blue light concern real?

Yes – eye specialists, general health practitioners and scholars are releasing new studies regularly on the dangers associated with blue light exposure.

4. Which devices are causing the greatest concern?

Because blue light's impact increases when your eyes are closer to the source, the following devices are concerning doctors most: smartphones, tablets, game devices, TV's, computers, CFL and LED lighting.

5. How can I protect against damaging blue light?

Blue light protection is now available in an advanced lens treatment for prescription and non-prescription lenses – this treatment filters harmful blue-violet light while allowing beneficial blue-turquoise light to pass through the lenses – blue-turquoise light allows the correct functioning of the sleep/wake cycle, memory and cognitive performance.

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