| A | B |
|---|
| The ability to see things clearly. | visual acuity |
| All the area that you can see around you while you are looking straight ahead. | field of vision |
| The straight ahead part of your field of vision. | central vision |
| Surrounds your central vision. | peripheral vision |
| The part of your peripheral vision closest to your central vision | fringe vision |
| A narrow field of vision, 140 degrees or less. | tunnel vision |
| Not being able to distinguish colors. | color blindness |
| The ability to judge distance between yourself and other objects. | depth perception |
| Not being able to see well at night. | night blindness |
| The ability to continue seeing when looking a bright lights. | glare resistance |
| The time your eyes need to regain clear vision after being affected by glare. | glare recovery time |
| When objects off to your sides become blurred and distorted as your speed increases. | speed smear |
