His eyes tracked them as they reached the road that headed back into town.

When I moved a hand to touch my hair, his eyes tracked it.

My eyes tracked her motion, even though I tried not to.

Her eyes did not track when I moved a finger back and forth in front of them.

Bob's eye tracked to the top of the next page.

Their eyes met and tracked together to the heart monitor.

His eyes tracked the bright red line to its source.

It did not move, but its eyes were tracking her.

His eyes didn't track and wouldn't focus, but they were open.

His eyes slowly tracked to mine, where they held for a moment.