POST TEST FOR MODULE 6: Retinoscopy in Minus-Cylinder           Catalog    Home

Including:
Section 1: Basic concepts
Section 2: Neutralizing spherical errors
Section 3: Neutralizing astigmatism with a minus-cylinder phoropter

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Section 1

1. Retinoscopy gives a(n) _________ measure of the refractive error.

A. objective
B. subjective
C. exact
D. millimeter

2. Which is not an advantage of retinoscopy as compared to the auto-refractor?

A. retinoscopy can be faster
B. retinoscopy allows you to detect media irregularities
C. you can do K readings with a retinoscope
D. all are advantages

3. This module describes the use of the retinoscope in the _________ position.

A. sleeve-down
B. sleeve-up
C. cocked
D. neutral

4. The streak is moved across the pupil in a _________ orientation to the direction of movement.

A. parallel
B. perpendicular

C. 45 degree
D. 10 degree

5. Which is not a proper phoropter or room adjustment when performing retinoscopy?

A. the phoropter PD is set for the patient PD
B. the patient looks at a non-accommodative target
C. the patient's fellow eye is occluded
D. the room lights are dimmed

Section 2

6. A with-motion reflex will appear to:

A. move in the opposite direction as the streak
B. move in the same direction as the streak
C. move up and down
D. move at a 45 degree angle to the streak

7. When performing retinoscopy,  it is easiest to determine neutrality by working with:

A. the sleeve-down position
B. one eye closed
C. against-motion
D. with-motion

8. The four primary retinoscopy meridians are:

A. 90, 180, 135, 45
B. 90, 180, 145, 25
C. 75, 105, 135, 45
D. 30, 60, 90, 120

9. To begin the neutralization process, we add:

A. plus cylinder power
B. minus cylinder power
C. minus sphere power
D. plus sphere power

10. A very wide, slow moving streak reflex indicates that:

A. you started in the wrong place
B. you are close to neutrality
C. you are a long way from neutrality
D. the patient is overweight

Section 3

11. When performing minus-cylinder retinoscopy,  if we find astigmatism while streaking the 90 degree meridian,  the axis of the correcting cylinder will be at:

A. 180 degrees
B. 45 degrees
C. 135 degrees
D. 90 degrees

12. Finding a neutral streak reflex at 75 and a with-motion reflex at 165 tells you that:

A. you did something wrong
B. there is astigmatism present
C. the eye is spherical
D. you have reached the endpoint

13. The first step in neutralizing an astigmatic eye is to:

A. determine the cylinder power
B. neutralize one of the meridians
C. add power for your working distance
D. reverse the sleeve position

14. The streak reflex appears ________  when you are streaking the meridian of the correct astigmatic axis.

A. narrowest
B. widest
C. less intense
D. longest

15. When neutralizing astigmatism,  the endpoint is reached when:

A. the patient complains
B. against motion disappears
C. against motion appears
D. a neutral reflex appears