Eye Structure and Function

Front

What is the primary function of the cornea in the eye?

Back

The cornea helps to focus light onto the retina and provides a protective barrier for the eye.

Front

Which part of the eye is responsible for converting light into electrical signals?

Back

The retina is responsible for converting light into electrical signals.

Front

What is the role of the optic nerve in the visual process?

Back

The optic nerve transmits electrical signals from the retina to the brain.

Front

What is an optical illusion?

Back

An optical illusion occurs when the brain misinterprets visual information, leading to a distorted perception of reality.

Front

True or False: The retina is an extension of the brain.

Back

True. The retina is considered an extension of the brain, connected by the optic nerve.

Front

What structure in the eye is primarily responsible for protecting it from foreign objects?

Back

The eyelids and eyelashes protect the eye from foreign objects.

Front

What happens to light after it passes through the cornea?

Back

After passing through the cornea, light enters the pupil and then the lens, which further focuses the light onto the retina.

Front

What is the function of the lens in the eye?

Back

The lens adjusts its shape to focus light onto the retina, allowing for clear vision at various distances.

Front

How do receptor cells in the retina respond to light?

Back

Receptor cells in the retina (rods and cones) produce electrical signals in response to light.

Front

What is the difference between rods and cones in the retina?

Back

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