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.

But while it reduces the likelihood of being caught in a stampede of savings-crazed soccer moms, Cyber Monday can come with its own drawbacks. Online shoppers spending as little as two hours in front of a screen on Cyber Monday are susceptible to digital eye strain. And let’s face it, you don’t have to be a shopaholic to get sucked down the Amazon rabbit hole and hit that two-hour threshold.