The screen did not help my eyes at all. In fact, the many lines that it has (probably due to the privacy filter) made the screen very grainy and dark, and it strained my eyes even more. When I tried to return it, which I thought would be much easier due to the "100 day refund policy" that they advertise, it was such an ordeal. They kept trying to convince me to keep the screen or to send me a new one instead of letting me return it and get a refund. It took so many emails back and forth until they finally agreed to give me a 50% refund. They do not issue return shipping labels, nor do they cover return shipping, so you will have to arrange your own returns (which is more arduous and expensive if you live abroad), thus making a 50% refund pretty much the only option. Furthermore, when I suggested making the return policy clearer, they acted very defensively saying there was absolutely nothing wrong with how it was currently described, which was very off-putting. All in all, it was a very stressful and disappointing experience, when all I wanted to do was to protect my eyes. If you are planning to purchase this item, expect to keep it and do not expect an easy return process.