Examlex
When the two different images, one from each eye, are fused into one overall image, three-dimensional sight occurs, which is referred to as __________ vision.
Iris
A muscular membrane whose dilation regulates the amount of light that enters the eye.
Color Blind
The inability to perceive differences between some or all colors that others can distinguish.
Trichromatic Theory
The theory that color vision is made possible by three types of cones, some of which respond to red light, some to green, and some to blue.
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