About six months ago I started to have daily headaches, I started to forget things and my side vision went away. I went to my doctor who sent me for a MRI of my brain. To my shock he said, I had a walnut sized tumor and a grapefruit sized fliud cyst in the back of my head. I had surgery to remove them a month ago. My memory cleared up, but I am still having headaches and eyesight problems daily. I see flashes and things that look like pinwheels along with what looks like a giant eye. I have been back to see the brain surgeon and I ask him if these strange things will go away over time and he had no answer for me. I can't go the rest of my life seeing all these crazy things. Does any one know if they will go away over time or has anyone ever heard of people seeing these things after brain surgery ? Any help would be greatly appreciated.