Chapter 3 (visual) Flashcards
0
Q
How is visual angle measured?
A
Millimeters, inches, meters, miles
1
Q
What is visual angle?
A
Concept that incorporates both size of object and distant from observer
2
Q
Visual angle equation
A
Object size/ distance
3
Q
Why is it necessary?
A
Usually backwards in eye but with visual angle image is reversed to see the final image in correct position
4
Q
What is foveal acuity?
A
Area of retina that provided highest degree of visual acuity (behind pupil and lens)
5
Q
Lab example of FA?
A
Dot and letter
Farther away image is from foveal, less clear it becomes
