One day I was driving alone through West Virginia on a nearly empty highway, enjoying the scenery of rolling hills and autumn leaves, when I began to notice something about my vision that I had never experienced before: sparkles. These kaleidoscopic and shimmering sparkles started at the center of my vision, and over the course of the next hour or so, became a ring that slowly expanded outward until my vision was normal again. Then I got a headache.

It wasn’t until years later that I finally learned what was going on. Read More »