Oh, it's nothing. Just a RETINA EATING WORM. John Matthews from Iowa had this haunting diagnosis when he went to a doctor complaining of hazy eyesight and two dark spots appearing in his vision. What they found was a microscopic worm swimming around inside John's eye. If that wasn't freaky enough, this particular kind of worm doesn't just live underneath the retina of the eye... it has it for lunch too. It finds it's way into the body via the gut, and instead of wriggling through blood vessels, it makes it's way to the eyes and brain via tissue. Do not want.