Have you ever noticed a tiny speck, cobweb, or squiggly line drifting across your vision? Those are commonly called floaters. For many people, especially as we get older, a few longstanding floaters are completely normal. What matters is when they suddenly change. The inside of the eye contains a clear, gel-like substance called the vitreous. As we age, this gel gradually changes and becomes more liquid. Small clumps or fibers can form within it and cast shadows on the retina