I have a problem with

I have a problem with my sony cyber-shot dsc T-3. Everything is all right except that there is probably a problem with the lense as the image (on the screen when I want to take a photo or film) is not right (it is pink, dark with lines on it). It is not a problem with the screen, because I can look at my photos / videos which were done before this problem happened. I think it is because I tried to use the camera in a hospital (I had a baby last week) when I was in a surgery room. Maybe too magnetic??? I have this camera for a long time (around 5 years) and I would like to keep it.