Eyes and Light
The iris controls the size of this opening, which lets light into the eye
The pupil
The wavelength of light determines this aspect of color
The Hue
This nerve carries visual information from the eye to the brain
The optic nerve
What is the first part of the eye to receive light and help focus it?
Instead of being "truly" red, a red tomato does this with red wavelengths of light
It reflects them
After leaving the retina, visual information travels through this brain structure before reaching the visual cortex
The thalamus
The retina contains these two types of photoreceptors, which process light and send signals to the brain
Rods and Cones
When it’s dark, it takes about this many minutes for our eyes to fully adjust
20 minutes
The visual cortex, where images are processed, is located in this lobe of the brain
Occipital Lobe
This part of the eye changes its shape through accommodation to help focus images on the retina
The Lens
Theory of color vision suggests that we see color through three types of receptors—red, green, and blue
Young-Helmholtz trichromatic theory/ Young Helmholtz theory
This area in the retina is the central point of focus and has the highest concentration of cones
The Fovea