I just bought a pair of Oakley Centerboard RX polished clear frames with prescription lenses. I just noticed tiny hairline cracks in the frames around the lenses near the nose bridge. They don't go all the way through the frame but I'm afraid they will grow. I had this happen on a non Oakley pair and in time one crack split all the way through. My guess is the lens was too big and expanded the frame too much. Has anyone seen cracks in clear frames before? I'm hoping it's normal on clear frames.