What does it mean when you see floaters in your eyes and should you be concerned about them?

Floaters are small, dark shapes or lines that appear to float in your field of vision. They are usually harmless and are caused by tiny fibers in the vitreous humor of the eye. However, if you suddenly see a lot of floaters, flashes of light, or a shadow in your peripheral vision, it could be a sign of a retinal tear or detachment, which requires immediate medical attention. If you notice any sudden changes in your vision, it is important to see an eye doctor for a thorough evaluation.