Chapter 11

Question 1

The average reading distance for most patients is inches.

Answer 1

14 to 16

Question 2

Which instrument can be used to detect warpage of a rigid contact lens?
a) radiuscope b) lensometer
c) topogometer d) measuring magnifier

Answer 2

a) radiuscope

Question 3

Which of the following will cause flare?
a) allergies b) spoiled solution
c) wrong power d) small optical zone

Answer 3

d) small optical zone

Question 4

Which type of cells will be visible with fluorescein stain?
a) damaged epithelial b) striated
c) enlarged endothelial d) aqueous

Answer 4

a) damaged epithelial

Question 5

When taking follow-up K readings to compare with the original K’s, how much change is acceptable?

Answer 5

0.500

Question 6

Over-refracting patients wearing rigid contact lenses usually reveals little, if any:

Answer 6

residual cylinder

Question 7

Central corneal clouding is a sign of:
a) polymegathism b) corneal flattening
c) cell mitosis d) edema

Answer 7

d) edema

Question 8

During over-refraction, the term “fogging” refers to: a) adding plus power to relax accommodation
b) adding minus power to stimulate accommodation c) chilling the lens before insertion
d) adding prism to break fusion

Answer 8

a) adding plus power to relax accommodation

Question 9

Oily deposits on lens surfaces, from soap or other cosmetics, causes:
a)smoother surfaces for lids to glide over
b) reduced wettability
c) lens warpage
d) jelly bumps

Answer 9

b) reduced wettability

Question 10

The follow-up exam with lenses in situ should be conducted:
a) immediately after insertion
b) before lenses are inserted
c) after six hours of wear
d) upon awakening

Answer 10

c) after six hours of wear

Question 11

If present, spectacle blur should disappear how long after lens removal?

Answer 11

twenty minutes

Question 12

Another name for the duochrome test is the test.

Answer 12

red/green

Question 13

Polymegathism, or variation in cell size, is a possible adverse effect of contact lens wear located in which layer of the cornea?

Answer 13

Endothelium

Question 14

Which of the following best describes the lens/cornea relationship of a properly fit soft lens?
a) 3-point touch b) corneal alignment
c) apical clearance d) scleral blanching

Answer 14

a) 3-point touch

Question 15

New blood vessels appearing in the corneal tissue is called:

Answer 15

neovascularization

Question 16

What color is fluorescein when viewed under ultraviolet light?

Answer 16

green

Question 17

Spectacle blur is caused by:

Answer 17

corneal changes

Question 18

Which type of lens is used to correct residual astigmatism?

Answer 18

front toric

Question 19

Epithelial thinning is a result of:

Answer 19

decreased cell mitosis

Question 20

Quality of lens surfaces should be evaluated by the fitter:
a) while on the eye
b) while off of the eye
c) both on and off the eye
d) if the patient complains

Answer 20

c) both on and off the eye

Question 21

In relation to contact lens follow-up examinations, the acronym SOAP stands for:

Answer 21

Subjective Objective Assessment Plan