OCPP BOOK 2 TEST Questions With Complete Solutions
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Course
OCPP
Institution
OCPP
OCPP BOOK 2 TEST Questions With
Complete Solutions
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? the lens has a
short progressive corridor
the index of refraction of c...
OCPP BOOK 2 TEST Questions With
Complete Solutions
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? the lens has a
short progressive corridor
the index of refraction of cr-39 is 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 _____ 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? If the progressive lens
is used to inhibit accommodavtive esotropia in children
In a plus lens with aspheric design the surface curvature ____ flattens from center to edge
what i the dioptric power of a lens with a foal length of -33.3mm? +30.00D
, OCPP BOOK 2 TEST Questions With
Complete Solutions
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 ________ 4mm
above the pupil center
it makes sense to utilize aspheric lenses in many dispensing situations since they ______
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? fitting accuracy
visible light is in the range of wave lengths approximately: 380 to 760 nanometers
which progressive addition lens is specifically designed for frames with a narrow B dimension?
soft design
light traveling through air encounters a second medium which slows the light to 100,000
miles/second. what is the index of the second medium? 1.86
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