I sometimes see a dimly flickering globe at around 15 degrees to the right\noff the center, that is, where my normal blind spot is located. A black line\nthat looks like a barbed wire sometimes appears and disappears in a split\nsecond on that area, too. A retina specialist didn't find a problem that\nmight cause that. He also said that my optic nerve looked healthy.\n\nWhat is going on? Maybe, am I having vitreous detachment that the specialist\ndidn't see or care to tell?