This morning I experienced a brief episode of visual side effects. When I woke up and sat up in bed, I experienced trails in my vision and ghosts in my peripheral vision. The trails are, basically, multiple repetitions. The ghost was like if you filmed a flashlight in the dark with a camera using the bulb setting - meaning that you get this random etch-a-sketch in light. These are one type of side effect that is possible from the crizotinib. It was a very brief episode - gone in just a few seconds.