Exploring the Human Eye

What is the outermost layer of the eye called?

• Iris

• Retina

• Cornea

• Sclera

What is the function of the cornea?

• The cornea regulates the pressure inside the eye.

• The cornea refracts light and protects the eye.

• The cornea absorbs light to enhance vision.

• The cornea produces tears for lubrication.

Which part of the eye controls the amount of light entering?

• Retina

• Iris

• Pupil

• Cornea

What is the role of the iris in the eye?

• The iris protects the eye from foreign objects.

• The iris helps in focusing light on the retina.

• The iris controls the amount of light entering the eye.

• The iris is responsible for color vision.

What is the name of the transparent structure that helps focus light?

• filter

• mirror

• prism

• lens

What is the function of the retina?

• The function of the retina is to convert light into neural signals for vision.

• To protect the eye from dust and debris.

• To store visual memories for later use.

• To regulate the amount of light entering the eye.

Which cells in the retina are responsible for color vision?

• Cone cells

• Bipolar cells

• Rod cells

• Ganglion cells

What is the purpose of the optic nerve?

• To provide nutrients to the eye

• The purpose of the optic nerve is to carry visual information from the eye to the brain.

• To control eye movement

• To protect the eye from injury

What is the vitreous humor and where is it located?

• The vitreous humor is located in the posterior segment of the eye.

• The vitreous humor is found in the cornea.

• The vitreous humor is located in the anterior chamber of the eye.

• The vitreous humor is a type of lens in the eye.

How does the lens change shape to focus on objects at different distances?

• The lens changes shape by becoming thicker for near objects and flatter for distant objects.

• The lens changes color to focus on different distances.

• The lens only changes shape for objects that are very far away.

• The lens remains the same shape regardless of distance.