Eye floaters are small spots, threads, or cobweb-like shapes that drift across your field of vision. They are especially noticeable when looking at a bright background, such as a clear sky or a white wall. In many cases, floaters are a normal part of aging and occur when the gel-like substance inside the eye, called the vitreous, begins to shrink and change over time.
If you suddenly notice new floaters, it is important not to panic, but you should pay close attention to any other symptoms. A small number of floaters that develop gradually are often harmless. However, a sudden increase in floaters, especially when accompanied by flashes of light or a shadow in your vision, could indicate a more serious problem such as a retinal tear or retinal detachment.