Seeing black spots in your vision is common—about 87% of people report it—but not every spot is harmless. Vitreoretinal specialist Benjamin Lin, MD, says moving specks or squiggles that drift with eye ...

Noticing dark spots or threads in your field of vision becomes more common with age. Seeing a line, spot, or thread drift across your field of vision can be distracting, to say the least. Known as ...

You glance up at a blue sky and notice something dark drifting across your view. Or maybe there’s a fixed, shadowy patch that doesn't move at all. Or perhaps a dark curtain seems to be creeping in ...