Step 1: First Lines
To Start, draw the First Lines, the Basic Lines
Step 2: The Pupil
Nie draw the pupil. It has to be rally black. Just in the middle you have to leave a Part a Little Bit brighter (for light-reflections)
Step 3: Shadows
Draw the First shadows. How you have to do, you See in the picture...
Step 4: Eyelashes
Draw the eyelashes
!!Attention¡¡: your pencil has to be really sharp!!
Step 5: The Lens
Draw many Lines for the Lens...
Step 6: FINISH
Now your eye is ready... Make some Last Lines and shadows to make it Perfect :D