Deck 8: Eye Disorders

Question 1

Which of the following is true of aqueous humor?

A) It fills the anterior chamber while the fetus is developing and remains unchanged throughout a person's life.
B) It is a clear liquid that is found between the lens and retina.
C) It receives nutrients from the vitreous humor.
D) It is continuously produced by the ciliary body.

Answer 1

D

Question 2

What causes benign floaters?

A) Bits of vitreous tugging on retinal tissue
B) Retinal trauma
C) Unbalanced intraocular pressure
D) Damaged optic nerve

Answer 2

A

Question 3

Which of the following is true of the optic disc?

A) It contains the fovea and macula.
B) It lacks retinal receptors.
C) It is protected by the cornea.
D) It is the only part of the internal eye with nerve fibers.

Answer 3

B

Question 4

A healthcare provider asks a patient whether or not he or she wears contact lenses. This is part of which section of the patient's health history?

A) Past medical history
B) Chief complaint
C) Social history
D) Family history

Question 5

Why is asking about tobacco use important as part of a social history?

A) Smoke can scar the cornea.
B) The chemicals in tobacco smoke can cloud the vitreous humor.
C) Cigarette use is associated with the appearance and frequency of floaters.
D) Long-term tobacco use causes predictable vascular changes in the fundus.

Question 6

A farmer working in wind-blown fields is most susceptible to what ailment?

A) Viral conjunctivitis
B) Pterygium
C) Myasthenia gravis
D) Proptosis

Question 7

Presbyopia is a failure of the eye to accommodate what?

A) Bright light
B) Very near vision
C) Distant vision
D) Subtle color shifts

Question 8

Using a slit lamp biomicroscope, the physician is most likely to find evidence of what?

A) Hyphema
B) Obstructed lacrimal ducts
C) Nystagmus
D) Papilledema

Question 9

The physician tests a patient's corneal reflex. One eye closes. Which of the following is most likely true?

A) The patient was awake and conscious.
B) This is a normal response.
C) Intracranial pressure may be elevated.
D) The physician used an ultra-thin 31-gauge needle.

Question 10

Which of the following is not true regarding an ophthalmoscopic examination?

A) The room should be darkened to dilate the patient's pupil.
B) The patient should focus on a distant object on the wall.
C) Glasses and contact lenses should be removed.
D) To examine a patient's right eye, the physician should hold the scope in the right hand.

Question 11

Which of the following differential diagnoses requires observation and referral to ophthalmology?

A) Hyphema
B) Foreign body
C) Corneal abrasion
D) Herpetic lesion

Question 12

Parents bring a 5-month-old infant for an examination. Which of the following will be true?

A) The infant's peripheral vision will not fully have developed yet.
B) The infant's eyes are now able to perceive a single, undoubled image.
C) It is appropriate for the physician to perform the cover-uncover test.
D) The infant likely cannot distinguish colors yet.

Question 13

The sclera merges with the cornea at the limbus.

Question 14

A person reading a book looks up and focuses on something in the distance. To do this, the eyes must decrease lens curvature, relax the pupils, and reduce convergence.

Question 15

The testing of visual fields is the "vital sign" in ophthalmology.

Question 16

Paleness of conjunctiva may indicate severe anemia.

Question 17

Fundoscopy in the primary-care setting generally offers a complete and fully adequate examination.

Question 18

A pregnant woman's eyes tend to be more sensitive and dry.

Question 19

What steps are involved in inspecting the eyelids and eyelashes? During which step may ptosis be noticed?

Question 20

What is cupping, what test and instrument discovers it, and what disease does it suggest?