Vision Flashcards
What part of the eye starts the process of bending light?
The cornea.
What is the pupil?
An opening in the muscles of the iris.
Where are photoreceptors located?
The retina.
What are photoreceptors?
Photoreceptors are cells that respond to light.
What are rods responsible for?
Rods are responsible for scotopic vision.
What are cones responsible for?
Cones are responsible for photopic vision.
What is the function of ganglion cells?
To integrate the information from other photoreceptors and send them to the brain via the optic nerve.
What is lacking in mild colour blindness?
One type of rods are lacking.
What is lacking in severe colour blindness?
All types of rods are lacking.
Where does visual information become lateralised?
At the optic chiasm.
What coordinates head and eyes to move towards stimuli?
Superior colliculus.
What is involved in the perception of images with corresponding sounds?
Superior colliculus.
What is the absolute threshold?
The smallest level of stimulus that can be detected.
What is scotopic vision?
The ability to see in dim light.
What is photopic vision?
Vision in bright light.
