Quiz on Eye Anatomy and Vision

Which structure in the eye is responsible for controlling the amount of light that enters?

• Cornea

• Iris

• Lens

• Retina

The process by which light energy is converted into neural signals in the eye is called:

• Accommodation

• Transduction

• Dichromatism

• Afterimage

A person who can only see objects clearly when they are close is likely suffering from:

• Farsightedness

• Astigmatism

• Nearsightedness

• Monochromatism

Which theory of color vision suggests that there are three types of cone cells, each responding to a different wavelength of light?

• Opponent-Process Theory

• Trichromatic Theory

• Dichromatism Theory

• Afterimage Theory

After staring at a red square for 30 seconds and then looking at a white wall, you see a green square. This phenomenon is best explained by:

• Trichromatic Theory

• Lens Accommodation

• Opponent-Process Theory

• Monochromatism

Which cells in the retina are primarily responsible for vision in low-light conditions?

• Cones

• Rods

• Ganglion cells

• Fovea cells

A person who has difficulty recognizing faces but can still identify objects is likely suffering from:

• Blindsight

• Prosopagnosia

• Dichromatism

• Astigmatism

The area of the retina where vision is sharpest and which contains the highest concentration of cones is called:

• Blind spot

• Optic nerve

• Iris

• Fovea

A person who can only see in shades of gray is likely experiencing:

• Dichromatism

• Trichromatic vision

• Monochromatism

• Astigmatism

When you move from a dark room into bright sunlight, your pupils constrict. This is an example of:

• Lens accommodation

• Transduction

• Iris function

• Afterimage effect