TED-Ed: What are those floaty things in your eye? - Michael Mauser

The video explains floaters, a common visual phenomenon where tiny objects inside the eye cast shadows on the retina. These floaters are more visible against bright, uniform backgrounds. The video also covers the blue field entoptic phenomenon, where white blood cells moving through retinal capillaries create moving dots of light. Both phenomena are natural and usually harmless, though excessive floaters may indicate a medical issue. The video highlights how our perception is influenced by both biological and external factors.

Describe the blue field entoptic phenomenon and how it differs from floaters.

What should one consider if experiencing numerous or large floaters?