Eye structure and function

Front

What is the function of the sclera in the eye?

Back

The sclera provides structure and protection to the eye, maintaining its shape.

Front

What is the role of the iris in the eye?

Back

The iris controls the size of the pupil and thus regulates the amount of light that enters the eye.

Front

What does the optic nerve do?

Back

The optic nerve transmits visual information from the retina to the brain.

Front

Why is light necessary for vision?

Back

Light is necessary for vision because it allows the eye to perceive images by stimulating the photoreceptors in the retina.

Front

What is the pupil's function in the eye?

Back

The pupil allows light to enter the eye and helps to focus images on the retina.

Front

What are the main parts of the eye involved in vision?

Back

The main parts include the cornea, lens, retina, iris, pupil, and optic nerve.

Front

How does the cornea contribute to vision?

Back

The cornea refracts (bends) light rays to help focus images on the retina.

Front

What is the difference between the anterior and posterior chambers of the eye?

Back

The anterior chamber is the space between the cornea and the iris, while the posterior chamber is the space behind the iris and in front of the lens.

Front

What is the function of the retina?

Back

The retina contains photoreceptors that convert light into electrical signals for the brain to interpret as images.

Front

What is the significance of the fovea in the retina?

Back

The fovea is the area of the retina with the highest concentration of photoreceptors, providing the sharpest vision.