The Human Eye and Vision Care

Which part of the eye is responsible for focusing light onto the retina?

• Iris
• Lens
• Sclera
• Vitreous humor

The reflective layer in some animals' eyes that helps them see better at night is called the:

• Tapetum
• Retina
• Aqueous humor
• Blind spot

What medical professional performs eye surgery?

• Optician
• Optometrist
• Ophthalmologist
• Neurologist

A red appearance in the white of the eye is known as:

• Conjunctivitis
• Glaucoma
• Cataracts
• Subconjunctival hemorrhage

The transparent front part of the eye that helps protect internal structures is the:

• Cornea
• Sclera
• Retina
• Iris

Which eye care professional primarily fits and adjusts eyeglasses?

• Ophthalmologist
• Optometrist
• Optician
• Surgeon

The colored part of the eye that controls pupil size is the:

• Cornea
• Lens
• Iris
• Sclera

The gel-like substance that fills the eyeball is called:

• Vitreous humor
• Aqueous humor
• Cerebrospinal fluid
• Plasma

Where do the optic nerves from both eyes meet?

• Retina
• Optic chiasm
• Brain stem
• Occipital lobe

The point where the optic nerve exits the eye, creating an area without photoreceptors, is called:

• Fovea
• Macula
• Blind spot
• Pupil