Easy way on how to draw manga eyes.
Step 1First draw the outside of were the eyelashes will go.
Step 2Now, draw were the pupil and color of the eye will go.
Step 3Now, pick the color of the eye and color it in. And in the middle use the brush tool, and draw a sort of half moon in the middle using a darker color.
Step 4Now draw some highlights in the darker part of the eye.
Step 5Draw the glare from were the light is coming from.
Step 6Clean it up and add eye lashes.
Step 7Draw were the skin folds over the eye. (As the red arrows indicate.)
Step 8And your done!! A manga eye just for you.