OCPP BOOK 2 EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS
How much accommodative ability does the average person have at birth? - ANS 15.00D
Objects appear to focus in front of a _____ lens. - ANS minus
When a ray of light leaves crown glass, its angle with the normal to the surface is only 8
degrees. If it has an angle of refraction of 12 degrees, what is the angle of deviation when it
leaves the glass? - ANS -4 degrees
which frame material begins as granules that are heated until liquid and then injection-molded
to the desired frame? - ANS Propionate
If light of about 550 millimicrons reaches your eyes, you will have a sensation of seeing ? -
ANS green
If a glass rod is surrounded by another medium of the same index of refraction, then the rod
will be_____ - ANS partly visible depending on the viewing angle
Plus lenses _____ - ANS show against motion
1 @COPYRIGHT 2025/2026.
, Progressive power can change from distance to near zones in either a rapid or slow fashion. If it
changes in a rapid fashion, then which of the following does not occur? - ANS the lens has a
short progressive corridor
the index of refraction of cr-39 is - ANS 1.49
this aberration results in a slight blurring of the image due to the fact that a lens will have the
tendency to focus light rays from the periphery sooner than the rays passing through the
central portion of the lens _____ - ANS spherical
the fitting cross for a general purpose progressive addition lens would be fitted higher than
specified by the lens manufacturer in which of the following cases? - ANS If the progressive
lens is used to inhibit accommodavtive esotropia in children
In a plus lens with aspheric design the surface curvature ____ - ANS flattens from center to
edge
what i the dioptric power of a lens with a foal length of -33.3mm? - ANS +30.00D
when children are fitted with progressive addition lenses,yet still have the ability to
accommodate just as other children do, the fitting cross is usually set ________ - ANS 4mm
above the pupil center
it makes sense to utilize aspheric lenses in many dispensing situations since they ______ -
ANS will create a more cosmetically appealing lens
although all of the factors listed below are important i the fitting of progressive lenses, which
factor has the most influence on wearer satisfaction? - ANS fitting accuracy
visible light is in the range of wave lengths approximately: - ANS 380 to 760 nanometers
2 @COPYRIGHT 2025/2026.
QUESTIONS AND ANSWERS 100% PASS
How much accommodative ability does the average person have at birth? - ANS 15.00D
Objects appear to focus in front of a _____ lens. - ANS minus
When a ray of light leaves crown glass, its angle with the normal to the surface is only 8
degrees. If it has an angle of refraction of 12 degrees, what is the angle of deviation when it
leaves the glass? - ANS -4 degrees
which frame material begins as granules that are heated until liquid and then injection-molded
to the desired frame? - ANS Propionate
If light of about 550 millimicrons reaches your eyes, you will have a sensation of seeing ? -
ANS green
If a glass rod is surrounded by another medium of the same index of refraction, then the rod
will be_____ - ANS partly visible depending on the viewing angle
Plus lenses _____ - ANS show against motion
1 @COPYRIGHT 2025/2026.
, Progressive power can change from distance to near zones in either a rapid or slow fashion. If it
changes in a rapid fashion, then which of the following does not occur? - ANS the lens has a
short progressive corridor
the index of refraction of cr-39 is - ANS 1.49
this aberration results in a slight blurring of the image due to the fact that a lens will have the
tendency to focus light rays from the periphery sooner than the rays passing through the
central portion of the lens _____ - ANS spherical
the fitting cross for a general purpose progressive addition lens would be fitted higher than
specified by the lens manufacturer in which of the following cases? - ANS If the progressive
lens is used to inhibit accommodavtive esotropia in children
In a plus lens with aspheric design the surface curvature ____ - ANS flattens from center to
edge
what i the dioptric power of a lens with a foal length of -33.3mm? - ANS +30.00D
when children are fitted with progressive addition lenses,yet still have the ability to
accommodate just as other children do, the fitting cross is usually set ________ - ANS 4mm
above the pupil center
it makes sense to utilize aspheric lenses in many dispensing situations since they ______ -
ANS will create a more cosmetically appealing lens
although all of the factors listed below are important i the fitting of progressive lenses, which
factor has the most influence on wearer satisfaction? - ANS fitting accuracy
visible light is in the range of wave lengths approximately: - ANS 380 to 760 nanometers
2 @COPYRIGHT 2025/2026.
