The Eye Flashcards
1
Q
What are the near and far points of a normal eye?
A
Near point = 25cm approx.
Far point = Infinity
2
Q
What are near and far points?
A
The boundaries where an eye can focus an image
3
Q
What do cameras produce?
A
Real, diminished, inverted images
4
Q
What is a CCD in a camera equal to?
A
The retina in an eye
5
Q
Name the 7 parts of the eye and describe their jobs
A
- Cornea = focuses light
- Iris = Controls size of pupil
- Pupil = Controls light entering eye
- Lens = Changes shape to focus light
- Retina = Where images are formed
- Ciliary muscle = contracts with a fat, spherical lens and relaxes with a flat, thin lens
- Suspensory ligaments = Moves the lens
