Turns. In turns, check your mirrors to make sure the rear of your vehicle will not hit anything. Merges. When merging, use your mirrors to make sure the gap in traffic is large enough for you to enter safely. Tight Maneuvers. Any time you are driving in close quarters, check your mirrors often. Make sure you have enough clearance. How to Use Mirrors. Use mirrors correctly by checking them quickly and understanding what you see. When you use your mirrors while driving on the road, check quickly. Look back and forth between the mirrors and the road ahead. Don't focus on the mirrors for too long. Otherwise, you will travel quite a distance without knowing what's happening ahead. Many large vehicles have curved (convex, "fisheye," "spot" "bug-eye") mirrors that show a wider area than flat mirrors. This is often helpful. But everything appears smaller in a convex mirror than it would if you were looking at it directly. Things also seem farther away than they really are. It's important to realize this and to allow for it. Figure 2.7 shows the field of vision using a convex mirror.