The Projector Illusion |  EVERYDAY MYSTERIES

Interesting fact about eye (improper laser safety) I damaged my eye with a 1/4w green laser. At first the damage showed as a black mark/shape where the laser hit. After a few months I had to try to see the damage the brain tended to make the damaged area show the same colors the eye saw near the damaged area. After a decade or so it seems the eye ignores what the damaged area sees (just like it does in the blind spot in the center of your eye where the optic nerve connects to the retina). Now the only way I see the blind spot is if I pick a small point like a light or sonething small in the distance and change where I'm looking untill the light disappears. Truly amazing how your perception can change so you dont see the damage. Lesson always use proper eye protection when using high power lasers, your vision is worth far more than good laser safety glasses.