I need to get my DD a new pair of RX Sunglasses. She has a pair of transition sports glasses and they work great except for in the evening when the sun gets low. They basically turn almost clear. I have been told this is due to UV light be filtered out by the Earth's atmosphere when the sun is at a lower level. At any rate, I have a choice between polarized and regular tinted lenses. Logic tells me that polarized would be better but I have read a few articles that suggest that polarized sunglasses can cause depth perception problems. Has anyone experienced this? Also, what about tint color? My gut tells me that grey is this best since she is pretty light sensitive but I have read one article that suggested green. It was talking specifically about baseball but I am not sure I am buying into green tint.