the eye terminology Flashcards
(8 cards)
1
Q
What are rods?
A
Receptor cells in the retina that detect dim light and help with black-and-white vision.
2
Q
What are cones?
A
Receptor cells in the retina that detect bright light and help with colour vision.
3
Q
What is the pupil?
A
The central opening in the iris that allows light to enter the eye.
4
Q
What is the pupillary mechanism?
A
The regulation of pupil size to control the amount of light entering the eye.
5
Q
What is accommodation?
A
The ability of the lens to change shape to focus on near and distant objects.
6
Q
What is the field of vision?
A
The area that one eye can see.
7
Q
What does convex mean?
A
A shape that curves outward; thicker in the middle than at the edges.
8
Q
What does concave mean?
A
A shape that curves inward; thinner in the middle than at the edges.
