Feng Shui for placing objects on the screen table

In the middle of the desk, there are file bars, pen containers and telephones on the left, and plants (preferably green leaves) on the right. Things on the left must be taller than those on the right. The computer should be backlit, so as to minimize the damage to the eyes, and the plants should be protected from radiation. For example, it is as convenient as possible for plants to absorb computer radiation.