OCPP Volume II Final Exam UPDATED ACTUAL Questions and
CORRECT Answers
1. Which factor is normally not considered essential in Specifying the nasal ro-
fitting progressive addition lenses? tation of the progressive
channel
2. The fitting cross for a general purpose progressive If the progressive lens
addition lens would be fitted higher than specified by is used to inhibit ac-
the lens manufacturer in which of the following cases? commodative esotropia in
children
3. When children are fitted with progressive addition 4mm above pupil center
lenses, yet still have the ability to accommodate just as
other children do, the fitting cross is usually set
4. A synonym for major reference point is Prism reference point
5. Although all of the factors listed below are important Fitting accuracy
in the fitting of progressive lenses, which factor has
the most influence on wearer satisfaction?
6. Which of the following is NOT a suggested method for Hold the lens so that its
viewing the hidden markings on a progressive addi- surface may be viewed in
tion lens? a mirror by reflected light
7. Unwanted peripheral cylinder power in a progressive Increases as the add pow-
addition lens er increases
8. Progressive power can change from distance to near The near zone is generally
zones in either a rapid or slow fashion. If it changes in smaller
a rapid fashion, then which of the following does NOT
occur?
9. Which of the following are NOT demonstrated by con- The expected increase
tour plots? or decrease in chromatic
, aberration throughout the
lens
10. A progressive add lens with spherical upper front sur- Hard design
faces would more likely be a
11. Which lens design is more likely to have smaller Soft design
amounts of peripheral astigmatism?
12. Which progressive addition lens is specifically de- Hard design
signed for frames with a narrow B dimension?
13. A presbyopic emmetrope who is used to crystal clear Soft design
distance vision is more likely to complain about a pro-
gressive addition lens with which type of design?
14. position of wear lenses are able to correct or compen- A difference in the vertex
sate for which of the following? distance between the re-
fraction and the wearer's
glasses
15. Near variable focus lenses have a power degression. Range difference from
Degression is the near power to the upper
portion of the lens
16. A near variable focus lens +1.25 -0.50 x 010 power in +1.50
the upper portion of the lens. It has a power of +2.75
-0.50 x 010 in the lower portion of the lens. What is the
degression (power range) of the lens?
17. For the progressive addition lens Rx below, how much 1.00 Δ
yoked base-down prism would be appropriate for
thinning the lenses using the rule of thumb?
+3.00 -0.75 x 130
CORRECT Answers
1. Which factor is normally not considered essential in Specifying the nasal ro-
fitting progressive addition lenses? tation of the progressive
channel
2. The fitting cross for a general purpose progressive If the progressive lens
addition lens would be fitted higher than specified by is used to inhibit ac-
the lens manufacturer in which of the following cases? commodative esotropia in
children
3. When children are fitted with progressive addition 4mm above pupil center
lenses, yet still have the ability to accommodate just as
other children do, the fitting cross is usually set
4. A synonym for major reference point is Prism reference point
5. Although all of the factors listed below are important Fitting accuracy
in the fitting of progressive lenses, which factor has
the most influence on wearer satisfaction?
6. Which of the following is NOT a suggested method for Hold the lens so that its
viewing the hidden markings on a progressive addi- surface may be viewed in
tion lens? a mirror by reflected light
7. Unwanted peripheral cylinder power in a progressive Increases as the add pow-
addition lens er increases
8. Progressive power can change from distance to near The near zone is generally
zones in either a rapid or slow fashion. If it changes in smaller
a rapid fashion, then which of the following does NOT
occur?
9. Which of the following are NOT demonstrated by con- The expected increase
tour plots? or decrease in chromatic
, aberration throughout the
lens
10. A progressive add lens with spherical upper front sur- Hard design
faces would more likely be a
11. Which lens design is more likely to have smaller Soft design
amounts of peripheral astigmatism?
12. Which progressive addition lens is specifically de- Hard design
signed for frames with a narrow B dimension?
13. A presbyopic emmetrope who is used to crystal clear Soft design
distance vision is more likely to complain about a pro-
gressive addition lens with which type of design?
14. position of wear lenses are able to correct or compen- A difference in the vertex
sate for which of the following? distance between the re-
fraction and the wearer's
glasses
15. Near variable focus lenses have a power degression. Range difference from
Degression is the near power to the upper
portion of the lens
16. A near variable focus lens +1.25 -0.50 x 010 power in +1.50
the upper portion of the lens. It has a power of +2.75
-0.50 x 010 in the lower portion of the lens. What is the
degression (power range) of the lens?
17. For the progressive addition lens Rx below, how much 1.00 Δ
yoked base-down prism would be appropriate for
thinning the lenses using the rule of thumb?
+3.00 -0.75 x 130
