| A | B |
| scelra | tough outer covering that protects eye |
| choroid | darken the interior chamber of the eye |
| retina | light sensitive layer |
| iris | contracts in response to light intensity |
| lens | focuses light on the retina |
| optic nerve | transmits inmformation to the brain |
| aqueous humour | a watery liquid through which oxygen & nutrients are diffused to lens |
| cornea | transparent layer in front of the eye |