Understanding the Eye and Its Functions

What is accommodation in the eye?

• Accommodation refers to the eye's ability to detect color.

• Accommodation is the eye's ability to change its lens shape to focus on objects at different distances.

• Accommodation is the eye's ability to perceive depth.

• Accommodation is the process of adjusting the pupil size.

Which part of the eye is responsible for focusing light?

• Iris

• Cornea

• Retina

• Lens

What happens to the lens during accommodation for near vision?

• The lens becomes opaque and hard.

• The lens remains unchanged in shape.

• The lens becomes more rounded and thicker.

• The lens becomes flatter and thinner.

What is the role of the pupil in vision?

• The pupil helps in focusing images on the retina.

• The pupil protects the eye from foreign objects.

• The pupil is responsible for color perception.

• The pupil controls the amount of light that enters the eye, aiding in vision.

How does the pupil reflex help protect the eye?

• The pupil reflex protects the eye by changing the color of the iris in response to light.

• The pupil reflex protects the eye by constricting the pupil in bright light, reducing light exposure to the retina.

• The pupil reflex has no effect on eye protection and only affects vision clarity.

• The pupil reflex dilates the pupil in bright light, increasing light exposure to the retina.

What is myopia?

• Myopia is a condition where close objects appear blurry.

• Myopia is a type of eye surgery to correct vision.

• Myopia is an eye disease that causes permanent blindness.

• Myopia is a refractive error where distant objects appear blurry.

What is hyperopia?

• A vision condition that affects color perception.

• A type of eye surgery to correct vision problems.

• Hyperopia is a vision condition where distant objects are seen more clearly than nearby objects.

• A condition where nearby objects are seen more clearly than distant objects.

Which muscle controls the size of the pupil?

• Iris muscles

• Ciliary muscles

• Pectinate muscles

• Sphincter muscles

What is the term for the adjustment of the eye to see at different distances?

• Accommodation

• Convergence

• Focusing

• Refraction

What is the function of the cornea?

• The cornea absorbs light to enhance vision.

• The cornea refracts light and protects the eye.

• The cornea regulates blood flow in the eye.

• The cornea produces tears for lubrication.