Ophthalmology

How would you describe the lens of the cornea?

• Opaque

• Colored

• Clear/transparent

• Reflective

What is the main function of the iris in the human eye?

• To produce tears

• To focus light

• To control the size and diameter of the pupil

• To detect color

In what lighting condition do cones function best?

• Dim light

• No light

• Bright light

• Twilight

What is the primary function of the optic nerve?

• To transmit information from the brain to the retina

• To transmit information from the retina to the brain

• To focus light on the retina

• To collect light from the environment

What is the role of tears produced by lacrimal glands?

• Nourish the lens

• Lubricate and bathe the eyes

• Fill the posterior chamber

• Protect the retina

Which fluid in the eye is responsible for nourishing the lens and cornea?

• Vitreous humor

• Aqueous humor

• Lacrimal fluid

• Synovial fluid

What is the role of the optic nerve in the eye?

• It focuses light onto the retina.

• It controls the size of the pupil.

• It transmits visual information to the brain.

• It produces aqueous humor.

Identify the letter that labels the following part of the eye:

optic nerve

• A

• B

• D

• E

• F

The white portion of the eye (In Humans).

• Pupil
• Sclera
• Dyslexia
• Retina

What is the colored part of the eye that controls the size of the pupil and thus the amount of light that enters the eye?

• Cornea

• Iris

• Lens

• Retina