How to draw a realistic eye

Start with a curved line for the top of the eye

Sketch a shorter curved line underneath.

Continue the line so it curves back up the to top of the eye

Add a scribble sort of thing in the corner of the eye

Shade above the eye for the eyelid

Add short lines for the bottom eyelahes

Add more short lines for the top eyelashes

Draw a circle for the inner eye and another circle for the pupil. Leave a white part in the pupil to show where the light hits the eye.

Shade the top of the inner eye. Start darker towards the top and get lighter towards the bottom.

Add lines in the inner eye. Shade under the eye for a more realistic effect

Add an eyebrow and shading between the top of the eyelid and the eyebrow. I hope this helped 😊