Well, the link might be brokenSo this is a referral link, as I see it)))
I will try your suggestion tooPlease... Don't buy fancy gadgets for this. Just take a 10 mins break every hour, and don't forget to "close your eye lids" every now and then. The stress is caused by lack of water around your eyeballs, not by the light itself. Light from the screens are nothing compared to the sunlight. We are used to it already. Don't fall for those scams.