I noticed yesterday when I was outside there are hundreds of tiny little specs on the surface "I think" of my 5s screen, I don't think its dust under the screen as they are on the black parts top and bottom of the glass also, if they were under there they would not be visible, I have cleaned the surface and they are still there but only in direct sunlight at a certain angle, is this just the way the glass is made or should I be concerned?