I recently got a stronger prescription for my glasses, and I now notice something strange. If I look at an object, say my computer screen through the left edge of the left lens, the left side of the screen will be red, while the right side will be blue. This happens for any object the is somewhat bright. Obviously the light is refracting in the lens, but I don't understand why the left side is red, and the right side is blue. I've attached a picture that I hope makes this comprehensible.