No. People's eyes are totally the same, they are different some how in some degree. The difference of color, size and shape of eyes is common, so if one of your eyes is born lighter than the other, don't worry about it. Some people have different color of each eye. What's more, eye condition are changing all the time, many factors can affect your eyes' development. Generally, the differences are harmless, but some times, one eye's change may indicate the illness of that eye and it often comes with other symptom. If you want to make sure your eyes are fine, go see a doctor.