It comes as no surprise that the use of digital screens has grown dramatically since the COVID-19 pandemic began. A survey by Jobson, “Coronavirus Survey—Wave 14,” indicated that approximately two-thirds of eye care professional (ECP) respondents noticed more patients having issues due to increased screen time, and, more than two-thirds of those said the issues affected both adults and children.[1]
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Photo: Viktor Hanacek, picjumbo.com
As hundreds of thousands of bargain hunters wreak havoc on malls and outlets across America this Black Friday, savvy online shoppers will be avoiding chaos and potential bodily harm by waiting until Cyber Monday to score their holiday deals. 
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.  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. 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.  This is part two in a four-part series guest-written by nationally recognized blue light expert, Gary Morgan, OD.
When considering the impact of blue light on children, most of us immediately think of behavioral tendencies that lead to increased exposure. When we see little Johnny or Suzie immersed in a three-hour game of Minecraft on a tablet eight inches from their eyes, many of us think about the potential consequences of all that screen time on their eyes. But there are less obvious physiological factors that come into play when considering blue light exposure, and why children are at increased risk. |
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TechShield is a registered trademark of Plexus Optix, Inc. All other brands or marks are the property of their respective owners.
Use of these marks, names, logos, and/or brands does not imply endorsement.
Website by Eyefinity