The transparent front part of the eye that covers the iris and pupil.
What is the cornea?
100
A sensory cell that responds to light falling on it.
What are photo receptors?
100
The visual processing center of the brain.
What is the occipital lobe?
200
The inability to see things clearly unless they are relatively close to the eyes.
What is nearsightedness?
200
The muscle that controls the pupil.
What is the iris?
200
It changes energy (waves of light) into neurological messages.
What is transduction?
200
A photo receptor cell that identifies black and white and operates well in low light - night vision.
What are rods?
200
The amount of energy in light waves.
What is intensity?
300
The inability to focus on nearby objects.
What is farsightedness?
300
It transmits impulses to the brain from the retina at the back of the eye.
What is the optic nerve?
300
The white outer layer of the eyeball.
What is the sclera?
300
A photo receptor that identifies color and is very concentrated in the fovea.
What are cones?
300
The distance from one wave peak to the next.
What is wavelength?
400
Where the pairs red and green, or blue and yellow are stimulated while the others are inhibited.
What is Opponent Process Theory?
400
They focus and bend light in order to focus on objects or people that are nearby or at a distance.
What are the lens?
400
Where there are no photo receptors in the optic disk, and, therefore, there is no image detection in this area
What is a blind spot?
400
The center of the field of vision is focused in this region, where retinal cones are concentrated.
What is the fovea?
400
Specialized neurons in the occipital lobe's visual cortex that receive information from cells in the retina.
What are feature detectors?
500
Three receptors in the retina that are responsible for the perception of color. One receptor is sensitive to the color green, another to the color blue and a third to the color red.
What is Trichromatic Theory?
500
It receives light that the lens has focused, converts the light into neural signals, and passes onto the optic nerve.
What is the retina?
500
The medical term for the ability to see.
What is vision?
500
The raised disk on the retina that creates a blind spot.
What is the optic disk?
500
Cells that transmits signals from photoreceptors to the ganglion cells.