External Eye Anatomy Instructions for students: Study this image of the external eye and identify as many structures as possible. On a piece of scratch paper, number from 1-6 1 (1) (6) (5) (4) (3) (2) Can you identify these 6 structures? Write the names of these structures on your paper. 2 (1) eyelashes (6) Lower eyelid (5) lens (4) pupil (3) sclera (2) Upper eyelid Check your answers. How did you do? Note: The sclera is covered by a thin membrane called the conjunctiva, which also lines the inner surface of the eyelids. The cornea is a transparent membrane that covers the iris and pupil; it is continuous with the conjunctiva. Suggested activity: Give students time to look at their own eyes in a hand-held mirror. If possible, provide magnifying mirrors.