Eye Parts and Functions

Front

What is the function of the cornea in the eye?

Back

The cornea is the clear, dome-shaped surface that covers the front of the eye. It helps to focus light onto the retina.

Front

What is farsightedness?

Back

Farsightedness is a vision condition where distant objects can be seen clearly, but close ones are blurry. This occurs when light rays converge beyond the retina.

Front

What part of the eye carries electrical signals from the retina to the brain?

Back

The optic nerve carries electrical signals from the retina to the brain, allowing us to interpret images.

Front

How does the eye function similarly to a camera?

Back

Both the eye and a camera capture light to create images. The lens in both focuses light, and the retina in the eye is similar to the film or sensor in a camera.

Front

What happens to the pupil in dim light?

Back

In dim light, the pupil dilates (enlarges) to allow more light to enter the eye.

Front

What is the role of the retina in the eye?

Back

The retina is the light-sensitive layer at the back of the eye that converts light into electrical signals for the brain.

Front

What is nearsightedness?

Back

Nearsightedness is a vision condition where close objects are seen clearly, but distant ones are blurry. This occurs when light rays converge in front of the retina.

Front

What is the function of the lens in the eye?

Back

The lens helps to focus light onto the retina by changing its shape.

Front

What is the purpose of the iris in the eye?

Back

The iris is the colored part of the eye that controls the size of the pupil and regulates the amount of light entering the eye.

Front

What is the blind spot in the eye?

Back

The blind spot is the area on the retina where the optic nerve exits the eye, and there are no photoreceptors, so no image is detected.