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Contact Lens - Quizzes > Quiz 6 > Flashcards

Quiz 6 Flashcards

1
Q 
Which of the following runs from the object to the fovea whereby crossing the principle points?
Line of sight
Optical axis
Pupillary axis
Visua Axis
A

Line of sight

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2
Q

What is an appropriate GP lens diameter for an HVID of 11.00mm?

  1. 50mm
  2. 80mm
  3. 00mm
  4. 00mm
A

9.00mm

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3
Q

What is an appropriate soft lens diameter for an HVID of 11.00mm?

  1. 00mm
  2. 00mm
  3. 00mm
  4. 00mm
A

14.00mm

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4
Q 
Which of the following is typically stated for a CL's?
Back Surface Power
Back Vertex Power
Equivalent Power
Front Vertex Power
A

Back Vertex Power

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5
Q 
Consider a minus power contact lens. Which of the following is the highest negative power?
Back Surface Power
Back Vertex Power
Equivalent Power
Front Vertex Power
A

Back Surface Power

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6
Q 
Which of the following is the distance from a BCR extension to the lens edge, when measured perpendicular to the BCR extension?
Axial Edge Lift
Axial Edge Clearance
Radial Edge Clearance
Radial Edge Lift
A

Radial Edge lift

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7
Q 
Which of the following is a soft contact lens material, or soft lens material component?
CAB
FSA
NVP
PMMA
A

NVP

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8
Q 
Which of the following is a GP lens material or GP lens material component?
EDGMA
FSA
GMA
HEMA
A

FSA

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9
Q

Which of the following is generally true for hydrogel lenses?
Thickness and Dk are directly related
Water content and Dk are directly related
Water content and Dk are inversely related
Water content and thickness are indirectly related

A

Water content and Dk are directly related

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10
Q

Which of the following not true for lens comfort?

a. the better the wettability, the better the comfort
b. the higher the modulus, the better the comfort
c. first generation SiHy lenses were not very comfortable
d. Edge design is very important in GP lenses

A

The higher the modulus, the better the comfort

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11
Q 
Consider a GP contact lens which contains fluorine and silicone. What FDA group is this lens in?
1
2
3
4
A

3

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Contact Lens - Quizzes (11 decks)

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