| A | B |
| 3 | # of layer in the inner eye |
| 120 Million | # of rods in each eye |
| 6 Million | # of cones in each eye |
| Cataract Surgery | Rremoval of a cloudy lens. |
| sclera | Contains blood vessels that supply nutrients to the eye |
| Cones | Responsible for bright-light vision |
| lens | Used for focusing |
| Cornea | Consists of five layers and is protected by tears |
| Eyelids | Provide protection from light, dust and trauma |
| Inner Layer | Consists of retina, rods & cones |
| Iris | Colored part of the eye |
| Outer Layer | Contains the cornea & sclera |
| Pupil | Opening in center of iris, regulating the amount of light coming into the eye |
| Retina | Nerve layer of the eye containing rods and cones |
| Rods | Function in dim light - responsible for night vision |
| Sclera | Tough, white, fibrous, connective tissue that maintains shape of the eye and protects the inner layers of tissue |