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.
A macular pucker is scar tissue that has formed on the eyeâs macula, located in the center of the light-sensitive tissue called the retina.The macula provides the sharp, central vision we need for reading, driving, and seeing fine detail.A macular pucker can cause blurred and distorted central vision.Macular pucker is also known as epiretinal membrane, preretinal membrane, cellophane maculopathy, retina wrinkle, surface wrinkling retinopathy, premacular fibrosis, and internal limiting membrane disease. macular pucker is scar tissue that has formed on the eyeâs macula, located in the center of the light-sensitive tissue called the retina.