Interior Rearview Mirror problems of the 2011 Toyota Camry

I bought a 2011 Toyota Camry two and a half months ago--problem is yhe rear window during night driving on the freeway with many car headlights hitting the window and the rearview(mirror-- the image on the rear view mirror is like viewing a wet spider web with a scintillating grid because of the wires embedded in the glass,(whether for defrost or radio reception ido not know) this grid in the rear window causes a distorted image --it is a dangerous situation because the image suffers from 'image static' which causes the driver to sort out the headlights from the 'static'--it is very tiresome drivingat night on the freeway--try it and you shoukd see thre is something not right--I have never experienced this in other cars--it is unsafe, the window should not break up the light coming through it -very distracting.