Highway safety is a very important issue today. With so many drivers being on the road you have to learn to drive defensively. You have to  watch  out for the other drivers. I just read about a device that is called  "eye alert". It watches  your eyes for signs of fatigue. I wonder if it works with glasses. I also wonder does how  this works for people who have eye problems. I can see me driving and this thing going off. I would probably cause wreck  because I was startled. Of course I do startle easy. But for some who drive a lot this might work.