Quiz 1 - LARS

Question 1

To increase the vault of a soft lens you could?

a. Increase diameter
b. Decrease diameter
c. Thicker lens
d. Flatter BC

Answer 1

a. Increase diameter

Question 2

A lens rotates 15 degrees clockwise. The Rx is 1.00 -1.75 x160. The new lens should be ordered?

a. -1.00 -1.70 x160
b. -1.00 -1.75 x145
c. -1.00 -1.75 x175
d. -1.00 -1.75 x015

Answer 2

c. -1.00 -1.75 x175

Question 3

A soft toric lens sits between 5 and 6 o’ clock. The axis should be adjusted by how much?

a. 7 degrees
b. 15 degrees
c. 30 degrees
d. 5 degrees

Answer 3

b. 15 degrees

Question 4

The Fairness to Contact Lens Consumer Act requires the prescriber to respond for a contact lens Rx with ______ business hours?

a. 24
b. 2
c. 8
d. 4

Answer 4

c. 8

Question 5

Rx -1.00 -0.75 x180
Trial lens is -2.00 -0.75 x170
OR is +1.00, trial lens rotates 5 degrees counter clockwise
Lens to order is?

a. PL -0.75 x165
b. -1.00 -0.75 x165
c. -1.00 -0.75 x175
d. PL -0.75 x175

Answer 5

c. -1.00 -0.75 x175

Question 6

The following patient should be fit with a soft sphere or a soft toric lens

Rx -3.50 -0.50 x180

a. Soft sphere
b. Soft toric

Answer 6

a. Soft sphere

Question 7

How or where can soft toric lens markings be seen on lens

a. dot or slash
b. 3 & 9
c. 6
d. All answers

Answer 7

d. All answers

Question 8

A soft toric lens has 2 different powers?

a. True
b. False

Answer 8

a. True

Question 9

During follow keratometry reading the image is clear then blurs after blink and then clears again. This would indicate a

a. Tight lens
b. Lens is inside out
c. Loose lens
d. Normal

Answer 9

c. Loose lens

Question 10

A patient fit with an extended wear lens should be seen for a follow up?

a. One month
b. One week
c. The next morning
d. Yearly

Answer 10

c. The next morning