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.
Eyestrain is another possible cause of burning, itchy eyes. Common causes of eyestrain include looking at digital screens all day or driving long distances. Eyestrain may develop at night if you are trying to read in a dimly lit spot or if you havenât stopped to rest your eyes. Being stressed or tired may cause you develop eyestrain.