Unit 14 Flashcards
Emotions are…
A strong feeling such as anger, fear, or joy
What is anger while driving called?
Road Rage
What percent of information while driving is gathered through your eyes?
More than 90%
What is visual acuity?
The ability to see things clearly both near and far away
What is the normal visual acuity?
20/20- 20 feet away from an eye chart
What is the minimum visual acuity needed to drive?
20/40 corrected vision
Twice as close to things than 20/20
What is color vision?
The ability to distinguish one color from another
What is color blindness?
Not being able to distinguish colors
How can a color blind person compensate for their inability to see colors while driving?
Remember the order of the lights in traffic signals
Know the meaning of traffic signs by shape or by reading them all carefully
Check all zones, including left/right/90 degrees before proceeding at traffic signals
Take cues from others
What is your field of vision?
The area you can see around you by looking straight ahead- most people see 90 degrees to each side (half circle)
What is your central vision?
The straight-ahead, 10 degree, clear part of your central vision
What is the are outside your central vision?
Peripheral Vision
What is the peripheral vision closest to the central vision?
Fringe vision
What do you see with your fringe vision?
Side fringe- Monitor a zone condition after it has been identified in the central vision
Upper Fringe- detect changes in the rear-view mirror
Lower fringe- monitor reference points for position
What is tunnel vision?
A narrow field of vision of 140 degrees or less that is compensated with more head and eye movement
