| A | B |
|---|
| optic nerve | carries signals from the eye to the brain |
| pupil | opening in the eye through which light passes |
| binoculor vision | ability to see an object with both eyes at the same time |
| CORNEA | clear covering of iris and pupil that protects the eye from dust particles and foreign matter |
| TEARS | saline liquid that washes the eye and keeps the cornea moist |
| EYELID | large folds/flaps of skin that wipe the eye clean and spread the tears. |
| EYELASHES | hairs on the eyelid used to screen large objects from entering the eye |
| LENS | flexible disc shaped structure that focuses the image of an object |
| EYEBALL MUSCLES | six muscles that are attached to the sides of the eye, they keep the two eyes focused on a single point |
| AQUEOUS HUMOR | transparent liquid behind cornea that helps keep the corneas shape. |
| RETINA | the light-sensitive innermost layer of the eye, that contains cones and rods. The image is projected on the cones and rods in the retina and let us see colors and shades of black and white. |
