OPT2376L Refractometry Lab II Unit 1

Question 1

When measuring Add powers, the lights should be very dim in the room.

Answer 1

False

Question 2

E.O.M. stands for:

Answer 2

Extra Ocular Motility

Question 3

You show a patient the 20/20 acuity line at 20 feet: T V Z E C L and the patient reads: T
U W B C L. How do you record his acuity?

Answer 3

20/20 -3

Question 4

On the cover/uncover test, you cover the right eye and see no movement. Then you
cover the left eye and observe an inward (nasal) movement of the right eye. The patient
has a:

Answer 4

right exotropia ( what is the eye doing the other one is cover. Not when both eyes are not covered)

Question 5

If, when using the +/- 0.50-crossed cyl and crossed hair target (horizontal and vertical
lines), the patient says that the “Horizontal lines are clearer” you should:

Answer 5

Add Plus Sphere for add power

Question 6

T/F: Donder’s Table of Amplitude of Accommodation indicates the amount of usable,
comfortable accommodation that we use for near vision.

Answer 6

False

Question 7

If, when using the +/- 0.50 crossed cyl and crossed hair target (horizontal and vertical
lines), if the patient says that the “Vertical lines are clearer” you should:

Answer 7

Do nothing: no add power is needed

Question 8

A screening test for visual field is called:

Answer 8

Amsler grid and Confrontations (poor mans visual test Finger test)

Question 9

If, when using the +/- 0.50 crossed cyl and crossed hair target (horizontal and vertical
lines), the patient says that the “lines are equally clear” you should:

Answer 9

Do nothing: no add power is needed

Question 10

T/F: The first test to be performed when a patient comes in for an office visit is to
measure and record their visual acuity.

Answer 10

True