This is a quick video of how I go about drawing a realistic human eye. For a reference picture I used a picture of my own eye.:) When drawing the eye lashes I start at the eyelid and slowly curve out and do a sort of 'flicking' motion to give them a thinning look. When detailing the eye remember to do small, controlled movements. The main pencil I used for this was a Dixon Ticonderoga (or an hb). I used a 4b for the pupil and a 4h for the white of the eye.