Nearsighted Vision (Myopia)

• Nearsighted vision ,also known as Myopia, is a eye problem that causes objects in a distance to appear blurry.
• Hard to focus on objects that are far away.
• occurs when eyeeball is slightly longer than normal or the cornea is steeper than average.

Nearsightedness, or myopia, is an eye problem that causes objects at a distance to be blurry. A nearsighted person can clearly see objects that are close to them, but has a hard time focusing on objects that are far away.
Causes:
Nearsightedness occurs when the eyeball is slightly longer than normal, or when the cornea is steeper than average. These conditions cause light to focus in front of the retina instead of directly on its surface. In most cases, nearsightedness is inherited. However, there is some evidence that suggest that intense close-up activities, such as reading for prolonged periods of time at close range or playing video games for many hours, in early adulthood can induce nearsightedness.
http://vision.about.com/od/commonvisionproblems/a/nearsighted.htm