Deck 14: Supplemental Skills

Question 1

The fluid-filled space between the posterior cornea and the lens is called

A)the anterior chamber.
B)the vitreous humor.
C)the retinal chasm.
D)the anterior cavity.

Answer 1

the anterior chamber.

Question 2

The test in which a strip of filter paper is placed in the outer fornix of the eye is known as

A)contact A-scan.
B)color vision test.
C)glare test.
D)Schirmer's test.

Answer 2

Schirmer's test.

Question 3

The time required for dry spots to appear on the corneal surface after blinking is known as

A)tear drying time.
B)tear break-up time.
C)tear evaporation time.
D)dry eyes.

Answer 3

tear break-up time.

Question 4

Which of the following is a tool used to test corneal thickness?

A)Pachymeter
B)Tonometer
C)Geneva lens clock
D)Phoropter

Question 5

The axial length of most eyes should be

A)20 to 22 mm.
B)23 to 24 mm.
C)25 to 26 mm.
D)27 to 28 mm.

Question 6

What test measures the axial length of the eye?

A)Glare testing
B)Contact A-scan
C)Laser interferometry
D)B and C

Question 7

What is considered the normal minimum tear break-up time?

A)10 seconds
B)8 seconds
C)20 seconds
D)3 seconds

Question 8

The first step in determining the anterior chamber depth is

A)holding a penlight directly in front of the eye.
B)holding a penlight temporal to the eye and parallel to the iris plane.
C)holding a penlight above the eye and parallel to the iris plane.
D)slit-lamp examination.

Question 9

Which of the following is a dye used to test for dry eyes?

A)Fluorescein dye
B)Schirmer's dye
C)Rose Bengal
D)Trypan blue dye

Question 10

What does the phenol red thread test determine?

A)Basal tear production
B)Axial length
C)Eye glare
D)Color blindness

Question 11

The normal thickness of the central cornea is about

A)700 nm.
B)540 nm.
C)200 nm.
D)150 nm.

Question 12

Biometric instruments need to be

A)upgraded every year.
B)double checked for accuracy
C)handled only by the ophthalmologist.
D)calibrated.

Question 13

In order for a physician to make a decision as to what power intraocular lens to implant in a patient, the physician needs which of the following?

A)Patient's refraction
B)Patient's keratometry reading
C)The distance between the anterior and posterior poles of the eye
D)Al of the above

Question 14

All of the following are parts of the anterior chamber except for the

A)pupil.
B)iris.
C)retina.
D)ciliary body.

Question 15

If we assume that the central corneal power is the same for each eye at normal axial lengths, for every 1 mm of axial length difference, how much difference in refractive error can be anticipated?

A)3)0 D
B)2)0 D
C)1)0 D
D)0)5 D

Question 16

The axial length is the distance between the anterior surface of the cornea and the

A)retina.
B)optic nerve.
C)fovea.
D)sclera.

Question 17

Contact applanation biometry and immersion A-scan biometry both measure

A)axial length.
B)basal tear production.
C)anterior chamber depth.
D)corneal thickness.

Question 18

Which color vision test consists of pseudoisochromatic plates that determine red-green color anomalies and deficiencies?

A)Color arrangement test
B)Ishihara color vision test
C)Farnsworth-Munsell 100 hue test
D)RGB anomaloscope

Question 19

For what duration are the Schirmer strips left in place during a tear test?

A)5 minutes
B)4 minutes
C)3 minutes
D)2 minutes

Question 20

In what itineration of the Schirmer's test is the patient not given anesthetic?

A)Schirmer's test I
B)Schirmer's test II
C)Schirmer's test III
D)Schirmer's test IV

Question 21

All of the following are glare testing devices except

A)Eye con
B)BAT
C)TVA
D)Pachymeter

Question 22

What instrument is used to measure thedistention of the anterior surface of the cornea beyond the lateral orbital rim?

A)Tonometer
B)Keratometer
C)Exophthalmometer
D)IOL Master

Question 23

Which color vision test consists of a series of plates with a gray background and colored circles, crosses, and triangles?

A)Hardy-Rand-Rittler
B)Ishihara
C)Color arrangement test
D)Farnsworth-Munsell 100 hue test

Question 24

Which color vision test utilizes rainbow-colored cups that must be arranged in order of similar hues?

A)Ishihara
B)Color arrangement
C)Farnsworth-Munsell 100 hue test
D)Hardy-Rand-Rittler

Question 25

Ophthalmologists measure the angle between the anterior surface of the iris and the posterior surface of the cornea in order to determine

A)axial length.
B)anterior chamber depth.
C)color vision.
D)corneal thickness.

Question 26

What symptom does dry eyes cause?

A)Foreign body sensation
B)Dryness
C)Burning
D)All of the above

Question 27

Myopes have

A)long eyes.
B)short eyes.
C)narrow eyes.
D)wide eyes.

Question 28

Which of the following glare tests involves the patient looking at a Snellen chart while a bright light source simulates the sun?

A)Eye con
B)Slit-lamp exam
C)BAT
D)TVA

Question 29

How much moisture on the filter paper is considered normal tear production when conducting a Schirmer's test II?

A)Less than 15 mm in 5 minutes
B)Exactly 5 mm in 10 minutes
C)More than 10 mm in 5 minutes
D)Less than 10 mm in 10 minutes

Question 30

Which of the following conditions often causes increased corneal thickness?

A)Pingueculitis
B)Episcleritis
C)Retinal detachment
D)B and C

Question 31

When performing a contact A-scan, pressing the probe on the eye too hard can do what to the axial length measurement?

A)Cause it to be bigger than it actually is
B)Cause it to be smaller than it actually is
C)Cause the machine to malfunction
D)It does not make a difference