COT Flashcards : Tonometry

Question 1

What is the MOST significant advantage of the applanation tonometer compared with the indentation tonometer?

a. Applanation is the more modern technique
b. Applanation causes less discomfort
c. Applanation is more accurate because a negligible amount of aqueous is displaced from the anterior chamber
d. Applanation instruments are more cost effective.

Answer 1

c. Applanation is more accurate because a negligible amount of aqueous is displaced from the anterior chamber

Question 2

Which procedure is MOST likely to give falsely elevated intraocular pressure reading?

a. Air puff tonometry
b. Applanation tonometry
c. Digital pneumotonography
d. Indentation tonometry

Answer 2

a. Air puff tonometry

Question 3

Which of these ocular conditions is LEAST likely to render Goldmann tonometry inaccurate?

a. Keratoconus
b. Retinitis pigmentosa
c. Pterygia
d. Corneal scars

Answer 3

b. Retinitis pigmentosa

Question 4

Intraocular pressure is highest during the

a. Morning
b. Afternoon
c. Early evening
d. late eveneing

Answer 4

a. Morning

Question 5

What type of tonometer is mounted on a slit lamp?

a. Applanation
b. Indentation
c. Perkins
d. air puff

Answer 5

a. Applanation

Question 6

Intraocular pressure is measured with a(n)

a. Ophthalmometer
b. Keratometer
c. Lensometer
d. Tonometer

Answer 6

d. Tonometer

Question 7

What is the term for the tonometry technique that displaces a minimal amount of fluid?

a. indentation
b. Applanation
c. Elevation
d. fixation

Answer 7

b. Applanation

Question 8

What color is the light filter uses in applanation tonometry?

a. blue
b. Red
c. Yellow
d. green

Answer 8

a. blue