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Kids and Blue Light (Part 4 of 4): Keeping Blue Light at Bay

8/21/2017

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Blue-light-reducing lenses for kids - TechShield Blue
This is part four in a four-part series guest-written by nationally recognized blue light expert, Gary Morgan, OD.

Over the course of the past three blog posts, we have examined why closer working distance, large pupils, and clear crystalline lenses contribute to children being more vulnerable to the adverse effects of blue light. 

So with the “why’s” out of the way, let’s examine the “how’s,” as in, how to help children reduce their blue light exposure and combat digital eye strain. 

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​Kids and Blue Light (Part 3 of 4): Crystalline Lens Clarity and Blue Light

8/1/2017

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Kids' Lens Clarity and Blue Light
This is part three in a four-part series guest-written by nationally recognized blue light expert, Gary Morgan, OD.

In parts one and two of this series, we discussed two primary factors affecting blue light exposure: proximity of the light source and pupil size.  These factors increase retinal luminance in children viewing blue-light emitting devices more than they do adults. 
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The third factor affecting retinal luminance is the density of the ocular media that light is passing through. In the eye, the only media that significantly changes density is the crystalline lens.  

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