In 2007, researchers at the University of CaliforniaâDavis determined that our Solar System was fully formed at 4.568 billion years ago. They did this by determining the age of stony materials from the asteroid belt.
When to see a doctor. See your doctor immediately if you experience the signs and symptoms of migraine with aura, such as temporary vision loss or floating spots or zigzag lines in your field of vision. Your doctor will need to rule out more-serious conditions, such as a stroke or retinal tear.
Add your answer. What causes Pigmentation behind the Eye? Hi, I have been told after a routine eye exam that I have an area of pigmentation behind one eye. I been referred to the hospital to see a consultant to get it looked at but have to wait nearly 2 months to be seen. Does anyone know what causes this. I've looked on the net and all I can find is references to eye...