It's basically the same problem as with other muscles. I can not use my eyes first thing in the morning without getting very ill because the eye muscles don't seem to function properly until around 11:00 or so. And my vision is changing so fast I can't keep up with the presciptions. I have read that this can be part of FM, but have yet to find anyone else who suffers with it. It can feel like someone has their finger in my eyes,