For some time I had been having a problem reading my mobile phone screen while wearing clip-on polarized sunglasses in the car. I am also bothered by a lot of glare while driving. I have photosensitive lenses in my eyeglasses, but they do not work in a car because the auto glass blocks the ultraviolet radiation that activates the color change. So, I have ben using clip-on sunglasses. Like most sunglasses, the clip-ons are polarized. The problem is, the LCD screen of the phone is also polarized. (All LCD screens polarize light as part of their function.) The net result is that unless both polarizations line up exactly (a highly unlikely event) the screen appears darker and more difficult to see. I came across there "Eagle Eyes" sunglasses while looking for an alternative to polarized lenses.

I had initially discounted most of the marketing hype, especially the "as seen on TV" tag line. But after trying them, I was impressed. The Eagle Eyes clip-on sunglasses actually work. They significantly reduce glare, which makes driving more comfortable and one of the things I was looking for. They are not polarized, so I can see the phone and GPS navigator screens much more clearly - the other thing I was looking for. They do change color tone, shifting colors toward yellow and gold, but that is easy to get used to. The lenses are more than large enough to cover my eyeglass lenses, and I wear ones that are larger than most. I measured the Eagle Eyes lenses as 47 mm high across the center, and 61 mm wide at the top. The lenses are tapered to give nose clearance, so they are about 40 mm wide near the bottom. The only ones of my older eyeglasses (yes, I hoard them) that these would not work with are some aviator-style ones I wore about 15 years ago. With my current eyeglasses (lenses 36 mm high and 50 mm wide at the nosepiece mount) these clip-ons overlap on three sides (top, bottom and outer edges).

I would certainly recommend these to anyone with the same problems I had.