Cataracts refer to opacities that develop in the natural lens of the eye. This tends to occur after the age of 50 years although it can be seen in younger individuals and, rarely, in infants. The lens of the eye functions like the lens in a camera and allows images to be focused on the retina. When the lens opacities form, patients may experience different symptoms depending on the location and pattern of the opacities. Read More: http://bigmentaldisease.com/an-introduction-to-eye-cataracts/