Quiz 5

Question 1

The two ways a prism must be expressed in relationship to a prescription are:

Answer 1

Prism dioptric power, base direction

Question 2

The direction of the base direction for prisms is expressed in degrees from _______ to ___________.

Answer 2

0 - 360

Question 3

Prism base 45 degrees before the right eye is the same as prism base:

Answer 3

Up and in

Question 4

The 2nd quadrant, in reference to meridian notation, has degrees ranging from:

Answer 4

90 - 180

Question 5

When light strikes a prism, it will deviate toward the ________________ while the image will be displaced toward the ______________ .

Answer 5

Base / Apex

Question 6

Excessive prism base down will cause the client to see:

• The floor appears as if concave
• As if they are standing in a hole and walking uphill
• Vertical objects as being taller than they are
• All of the above

Answer 6

All of the above

Question 7

Excessive prism base up will cause the client to see____________________.

• The floor appears convex
• The floor appears concave
• Vertical objects as being taller than they are
• All of the above

Answer 7

The floor appears convex

Question 8

Find the resultant prism (R and degree) from the following information:
OS: +1.00 -2.00 x 170 2.00 BI and 3.00 BU

Answer 8

3.6 ^ @ 123.7 degrees

Question 9

Resolve the following prism (Find X and Y components):

OD: -3.00 -1.00 x 30 5.00 @200

Answer 9

X = 4.69 ^BO / Y = 1.7 ^ BD

Question 10

Prism can be measured and expressed in Prism Diopters, Prism Centrads and Prism Millimeters

Answer 10

False