![]() When white blood cells stretch to pass through the blood vessels in your eyes, you may see dots that look like little worms moving around in your vision. White blood cells let blue light through to your retina, which then sends a signal of increased brightness to the brain. Red blood cells, which make up more than 90 percent of your blood, absorb blue light. The moving dots you see when staring at the sky are created by your own white blood cells flowing through your eyes.īlood flows to your eyes through blood vessels that pass over the retina - the part of your eye that acts as a receptor for all light. What Is The Blue Field Entoptic Phenomenon? This is a very normal occurrence called the blue field entoptic phenomenon. Blood flows to your eyes through blood vessels that pass over the retina the part of your eye that acts as a receptor for all light. Look up at a bright, blue sky and you may notice tiny dots of moving light. The moving dots you see when staring at the sky are created by your own white blood cells flowing through your eyes.
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