ζωγραφική

This goes to a page at everyonecandraw.net. It has a lot of printable sheets you can download to study how to draw these images. It is a great website for learning how to draw.

an eye is shown in the middle of three different lines, each with their own image

Japanese Graphic Design

Architectural Drawing

Fan Art Drawing

Indulgy

Paso A Paso Ojo Más

This could come in handy, I do have some difficulty drawing noses, but it has the circles first, which always sucks. :P

four different views of the same person's eyes, with one being drawn in pencil

lovedolphins10409 - Professional, Traditional Artist | DeviantArt

Eye Progression by ~lovedolphins10409 on deviantART

an image of different lines that are in the same pattern as shown on this page

얼굴 드로잉

17 Diagrams That Will Help You Draw (Almost) Anything

Sketching lips.

Drawing Hands

Flower Doodles

堆糖－美好生活研究所

How to draw: Eye beautiful, must try

ζωγραφική

11 Pins

Elina

Draw An Eye

Realistic Eye Drawing

Eye Drawing Tutorials

How to Draw a Realistic Eye: 9 Steps | RapidFireArt

Tutorial: How to Draw Realistic Eyes http://rapidfireart.com/2013/05/08/how-to-draw-eyes/

Mount Fuji in progress

M A R K C R I L L E Y . C O M

Photo realistic eye tutorial (link just goes to his home page)

Printable Sheets

This goes to a page at everyonecandraw.net. It has a lot of printable sheets you can download to study how to draw these images. It is a great website for learning how to draw.