| A | B |
| cornea | clear outer covering of the eye |
| pupil | black hole in the center of the eye |
| iris | the colored muscle the opens and closes depending on the ampunt of light |
| lens | transparent structure that focuses image on the retina |
| aqueous humor | watery liquid between the cornea and iris |
| vitreous humor | transparent jelly-like substance that gives the eyeball its shape |
| sclera | white outer layer of the eye |
| retina | inner layer of the eye that has light sensitive cells |
| optic nerve | brings electrical impulses to the brain |
| rods | cells of the retina that sense dim light in shades of black to white. |
| cones | cells of the retina that sense color and sharp details in bright light, |
| blind spot | area on the retina where the optic nerve is attached |