Quiz For Digital Systems – Not Best for All

1 point(s)

Select the three tools used for obtaining a pupil distance

pd ruler, pupilometer, seg gauge
pupilometer, digital systems, seg gauge
pupilometer, pd ruler, penlight
pupilometer, pd ruler, digital measuring systems

1 point(s)

The biggest issue when mis-measuring the pupil distance would be

induced prism
needs to lift head to see distance
bifocal height too high
no issue would be present

1 point(s)

Digital Measuring units can measure

pupil distance, bifocal height and sphere power
oc height, pantoscopic tilt and vertex distance
prism, vertex distance and pantoscopic tilt
oc height, prism, bifocal height

1 point(s)

The biggest error when utilizing a pd ruler is

the ruler is mismarked
measurements are misread
there are no errors with the pd ruler
pupil reflection isn’t present

1 point(s)

In measuring for progressive lenses the optician must

adjust themselves so they sit even with the patient
adjust the patient to sit even with the optician
use 50% of the vertical measurement of the frame
mark the lower lid with a marker

1 point(s)

Digital Measuring systems came into the market because

they enhance the dispensary
they provide revenue for lens manufacturers
they are accurate
they are able to measure more precisely for new lens styles

1 point(s)

Digital measuring systems are not a good option for those who

do not like to have their picture taken
do not want free form lens designs
have a mild corrections
have a strabismus

1 point(s)

Digital measuring systems can measure as small as

1.0 mm
.001 mm
.10 mm
1.5 mm

1 point(s)

Traditional lens styles can be

made on digital equipment
cannot be measured with a digital system
are not available any longer
tolerated for power indifferences

1 point(s)

Strabismus is

when eyes are in alignment
when the eyes shake back and forth
when you need correction for near
a disorder causing one or both eyes to turn

1 point(s)

Reasons you would not utilize a digital measuring system include

strabismus, head tilt, muscular imbalance
tropia, phoria, balance lens
inability to sit still, doesn’t like their photo taken, doesn’t need a bifocal
frames are too small, customer is too tall, and customer doesn’t want a digital lens

1 point(s)

Benefits of the digital measuring systems include

fewer remakes
small investment
takes more time with the patient
helps in frame selection

1 point(s)

Children under ten years of age are

best measured using a digital systems
best measured using traditional methods
easy to photograph
need no facial measurements

1 point(s)

It is important to practice traditional methods because

we do not need to practice them as utilization is no longer needed
they are on the state boards and ABO examinations
they are faster
systems can crash leaving traditional methods as the only option

1 point(s)

When measuring for a bifocal vertically, the following tools can be used

pupilometer, seg gauge, digital measuring
marker, pd ruler, pupilometer
penlight, pd ruler, seg gauge
seg gauge, pd ruler, digital measuring

1 point(s)

Mis-measuring the optical center too high or too low can cause

base up or base down prism
base in or out prism
nothing, the optical center is the point of 0 prism
the bifocal to be too high or too low

1 point(s)

Elderly patients may not be good candidates for digital measuring because

they may have a traditional style bifocal/trifocal
they may have posture/neck imbalances
they are all good candidates
of an inability to sit still

1 point(s)

While not a muscular issue, when using digital measurements people often times

smile for the camera
blink
reposition their glasses
sit up straight creating a posture called picture pose

1 point(s)

Which of the following would not be a result of human error?

misplacing the frame box markings
not observing muscular and posture differences
aligning pupil reflex with a lens implant
internet/server issues

1 point(s)

The “wow factor” digital systems offer is important because

people love technology
it educates the customer on why accuracy in measuring is important
not all offices have it
it matches the on line eyeglass stores way of measuring

1 point(s)

Nystagmus is

when an eye turns in a direction
a dilated pupil
the term for excessive blinking
uncontrolled movement of the eyes

1 point(s)

When the ocular center is placed too high on a minus lens, the following occurs

the prescription becomes more minus
the prescription becomes more plus
base up prism is induced
base down prism is induced

1 point(s)

The patient has an Rx of -3.50. The pd is delivered 3 mm off. How much approximate prism is induced

none. if the pd is off it does not induce prism
0.9 prism D
0.09 prism D
1.0 prism D

1 point(s)

A customer has an Rx of – 1.75 ou, single vision glasses. Upon evaluation you see that the OC on the right lens is placed 5 mm too high. What is the next step

remake the glasses as they do not meet the ANSI requirements
they are within the ANSI tolerance so they can be dispensed
twist the lens in the frame to see if you can adjust the OC placement
adjust the glasses so the OC is changed to meet the customer pupil

1 point(s)

It is best to do a manual measurement on a customer when

they have an excessive blink reflex
they are in a progressive lens
when the prescription states prism is needed
it’s always best use the digital systems only

1 point(s)

A trait in nystagmus patients that makes digital measuring systems difficult is

nothing. they can and should be done with the digital
head tilts or eye rotations
they have one pupil larger than the other
their eyes blink excessively

1 point(s)

What is the term for the standards set for prescription tolerances

optical quality
AOS
ANSI
optical allowance

1 point(s)

Digital systems do not measure

face form
frame wrap
pantoscopic tilt of a frame
base curve

1 point(s)

When the prism direction is Base Up what direction is the eye pulled

in
out
up
down

1 point(s)

When the prism direction is base in what direction is the eye pulled

out
up
in
down

1 point(s)

The glasses are delivered 1.50 D of base in prism on a minus lens. The pupil distance is misplaced in what direction

temporal
nasal
too high
too low

1 point(s)

The glasses are finished with 1.5 D of base in prism. Which of the following statements is true?

the optical center is too high
the prism is within ANSI tolerances
the optical center is too low
the eye is pulled outward

1 point(s)

The ANSI tolerance for vertical prism in a progressive lens with a power of + / –3.37 is

1.0
0.67
0.33
0.50

1 point(s)

For progressive lenses, when the pupil distance is mis-measured the following could occur

the bifocal will be too high or too low
the patient will be looking through peripheral blur
base up prism will be present
the patient will need to lift their head to read

1 point(s)

The pupilometer

is held up like a pair of binoculars
presents a lot of errors
is difficult to upkeep
does not allow monocular measurements

1 point(s)

The pd ruler

is expensive
is portable
produces no errors
measures the pantoscopic angle

1 point(s)

When working with patients we need to be observant of

their clothing
those accompanying them
their job
their posture and head position

1 point(s)

As experts we need to

sell the most premium product
have the practitioner provide the facial measurements
practice and explain why traditional methods are needed
recognize if the customer can afford a designer frame

1 point(s)

An Rx calls for 2D base in prism. Upon evaluation of the spectacles are finished with 3D of base in prism. What is the most likely reason for this?

the pd was measured too wide
the pd was measured too narrow
the optical center was measured too high
the bifocal placement is too low

1 point(s)

The optical center is

the point in the lens where there is no prism
always 3 mm above the seg height
the same as the patient pd
the point in the lens where prism is found