The Eye

What is the blind spot?

• The area on the retina where the optic nerve leaves the eye, which has no photoreceptors.

• The part of the eye responsible for color vision.

• The area of the retina that contains the most photoreceptors.

• The region in the eye that focuses light onto the retina.

What is the difference between rods and cones?

• Rods are responsible for vision in low light, while cones are responsible for color vision and detail.

• Rods are responsible for color vision, while cones are responsible for vision in low light.

• Rods are only found in the peripheral vision, while cones are found in the center of the retina.

• Rods detect motion, while cones detect shapes.

What are photoreceptors?

• Cells in the retina (rods and cones) that detect light and color.

• Cells in the brain that process visual information.

• Cells in the eye that produce tears.

• Cells in the retina that only detect motion.

What is the fovea?

• A small pit in the retina that provides the clearest vision.

• A type of eye disease that affects vision.

• The outer layer of the eye that protects it.

• A muscle that controls the shape of the lens.

What is the retina?

• The front part of the eye responsible for focusing light.

• The back of the eye that takes light and changes it to nerve signals.

• A layer of tissue that protects the eye from dust and debris.

• The colored part of the eye that controls the size of the pupil.

What is the purpose of the eyelids?

• To protect the eyes and help spread tears over the surface of the eye.

• To enhance vision by adjusting the focus of light.

• To provide a barrier against dust and debris entering the eyes.

• To regulate the amount of light entering the eye.

What is the optic nerve?

• The nerve that transmits visual information from the retina to the brain.

• A nerve responsible for hearing.

• The nerve that controls eye movement.

• The nerve that connects the eye to the ear.

What is the sclera?

• The colored part of the eye responsible for vision.

• The white part of the eye made of a tough material.

• The transparent layer covering the front of the eye.

• The fluid inside the eye that helps maintain its shape.

What is the function of the aqueous humor?

• To provide nutrients to the lens and cornea.

• To maintain intraocular pressure.

• To absorb light and focus images on the retina.

• To protect the eye from infections.

What is the vitreous humor?

• The gel-like substance that fills the space between the lens and the retina.

• A fluid that nourishes the cornea and lens.

• The outer layer of the eye that provides protection.

• A type of muscle that controls the shape of the lens.