| A | B |
|---|
| pupil | The hole in our eyes that lets in light. |
| Iris | The color part of our eyes. |
| dark | When it is really ____ the iris will expand the pupil. |
| retina | The place in the eve where the rods and cones are located. |
| depth perception | Having two eyes helps with this. |
| cornea | The clear layer at the front of our eye. |
| tears | These keep our eyes clean. |
| optic nerve | This takes the signals from the retina to our brain. |
| rods and cones | These change light into electrical signals. |
| near sighted | When you have trouble seeing things far away. |
| far sighted | When you have trouble seeing things close up. |
