Anatomy of the eye Flashcards
How many layers are in the eye?
5
What is perception
based off neural firing
is different for everyone
visual stimuli and visual receptors
human visual range is extremely narrow
visual stimuli is inherently ambiguous
visual field
what we see in front of us (left and right)
visual sensitivity
the neurons ability to detect levels of light
(more sensitive can detect in dim light)
visual acuity
high resolution (due to cones)
visual transduction
the conversion of light into neural signals
what is an advantage of having one eye on each side of your head?
larger visual field
what is an advantage of having both eyes in front?
higher visual acuity
Binocular disparity
the difference between 2 retinal images helps create 3D and depth perception
Pupil
allow light to enter
iris
the muscle that give eye color and regulate the size of pupil (dilation)
lens
accommodates by changing width allowing light to be focused for the retina
retina
biological receptors (light rays converted into neural signals)
fovea
located in the back of the eye, highest visual aquity, center of field of vision.