Measuring IOP B6

Question 1

What is the only direct test for measuring IOP?

Answer 1

Manometry

Question 2

WHat tonometer measures the area flattened by a given force?

Answer 2

Fixed force tonometers

Question 3

What is the gold standard?

Answer 3

Goldmann Applanation Tonometry (GAT)

Question 4

What tonometer measures the force necessary to flatten a given area?

Answer 4

Fixed area tonometers

Question 5

What are some indirect tests for IOP?

Answer 5

Indentation: Shiotz
Applanation: Goldmann, NCT
Contour-matching: Pascal dynamic contour
Rebound: iCARE
Combination methods: tonopen

Question 6

WHich measurement is as close as you can get to the goldmann?

Answer 6

Perkins Applanation tonometry

Question 7

What is one of the newest forms of tonometry?

Answer 7

Rebound tonometry

Question 8

What measures the force required to indent the globe? (IMPORTANT)

Answer 8

Indentation

Question 9

What measures the force required to flatten the globe? (IMPORTANT)

Answer 9

Applanation

Question 10

Which test can be performed over soft contact lenses (IMPORTANT)

Answer 10

Tonopen

Question 11

This is used to measure changes in the curvature of the cornea or movement of the apical corneal interface.

Answer 11

OCT

Question 12

Not affected by Central corneal thickness

Answer 12

Transpalpebral

Question 13

If you wanted a portable

Answer 13

Tonopen, digital palpation, Perkins, Diaton, iCare, Shiotz

Question 14

Not portable

Answer 14

Goldmann, pascal,

Question 15

Which test measures historesis?

Answer 15

Ocular response analyzer