Tools

Question 1

Adjustment tools

Answer 1

• Nose pad pliers
• Single/double nylon jaw pliers
• axis adjustment pliers
• needle nose pliers
• screwdriver sets
• drill mount kit
• pupilometer
• hot air frame warmer

Question 2

Pupilometer

Answer 2

Measures PD
Can be set at different distances
Not good for tropias or someone with a facial deformity

Question 3

Hot air frame warmer

Answer 3

Adjust plastic frames

Hot and cold

Question 4

Ultrasonic cleanser

Answer 4

Cleans glasses and jewelry
High frequency pressure
-Should not put AR coating lenses in the ultrasonic cleansers
-coatings are very dense so water can be absorbed within the film if it is left in too long and cause it to loose adhesion and color shifts in the lens

Question 5

Traditional surfacing

Answer 5

Rx is ground and polished into a lens using a pre made tool for the given Rx
Must stock semi finished progressive lens and bifocals and add power

Question 6

Digital surfacing

Answer 6

Ability to tailor to suit an individual prescription

More options

Question 7

Surfacing equipment

Answer 7

Axis marker 
Blocker 
Generator 
Finer 
Polisher 
Coater

Question 8

Measures the dioptric power of lens

Answer 8

Lens clock

Question 9

How to calibrate the lens clock

Answer 9

Place it on flat surface, should read 0

Question 10

Error in a lens clock

Answer 10

If you are not completely perpendicular, even just 10 degrees off will cause an error of 2D

Question 11

What is the red readings on a lens clock

Answer 11

Back surface

Question 12

What is the black numbers on a lens clock

Answer 12

Front surface

Question 13

What is a lens clock designed for

Answer 13

Materials like glass with an index of 1.53

-any other RI will cause an alter in the reading

Question 14

When rotating the lens clock on the front surface of a lens, all meridians read +3.00D. When rotating the lens clock not he back surface, the clock reads -5.75D. What is the nominal power

Answer 14

Front=+3.00D
Back= -5.75

Nominal= -2.75

Question 15

Checking a bifocal with a lens clock

Answer 15

Read the front surface on the top of the lens and then the front surface on the bifocal part, and take the difference

Question 16

When rotating the lens clock on the front surface of a lens, all meridians read +6.50D. On the back surface the clock reads -7.50D along the 180 meridian and -6.00D along the 90 degree meridian. What is the nominal power of the lens

Answer 16

+0.50 -1.50 x 090

Question 17

Measuring the thickness of the lens, good for inspections

Answer 17

Thickness calipers

Question 18

What odo you measure the thickness on in the plus lens

Answer 18

Edge

Question 19

What part of a minus lens do you measure the thickness

Answer 19

Middle

Question 20

How do you decipher all the symbols on a progressive lens

Answer 20

Progressive lens identifier book

Question 21

4 point alignment

Answer 21

Off-face
-sitting the frames on the table and making sure all 4 points touch the table and when you flip them upseide down they should do the same

Question 22

How to start adjustments

Answer 22

Always start from front and center, and work your way around and out

Question 23

X-in

Answer 23

Vertical misalignment

Question 24

Temporal spread

Answer 24

Temples should be almost perpendicular to the frame front, 90-95 degrees

Question 25

Temple fold

Answer 25

Temples should fold parallel and symmetrical to each other and should cross at the center of the frame

Question 26

Nose pads

Answer 26

- frontal, splay, and vertical | - tops of them should be closer than the bottoms, should follow the eye wire line

Question 27

Faceform and wrap

Answer 27

Slightly rounded to the form of the face

Question 28

Moving nose pads in

Answer 28

Lifts the frame up

Question 29

Moving the nose pads out

Answer 29

Drops the frame

Question 30

Fixing the temples

Answer 30

If the frame is too far down, move that same temple down to move it up and vice versa

Question 31

Pantoscopic tilt

Answer 31

Lower rim tilted towards the face | 4-18 degrees (usually 7-10 most commonly)

Question 32

Retroscopic tilt

Answer 32

Bottom of frame angled out

Question 33

Vertex distance/wrap

Answer 33

Make sure they are sitting even side to side from each eye - affects horizontal displacement - 12-14mm - have them look down and look through the top of the glasses - adjust the temples

Question 34

Temple bend

Answer 34

Over the ear Into the head Most important 2 things

Question 35

Full frame

Answer 35

``` Goes all the way around Sturdy Lens fits into a beveled edge Allows you to hide thick lenses Allows to get a thinner lens though Good for stronger lenses ```

Question 36

Semi-rimless

Answer 36

Frame on top, wire on the bottom | Putting a groove into the lens and tightening the wire into it

Question 37

Drill mount or 3 piece or rimless

Answer 37

Drilling into the lens to mount the frame Very fragile Not for strong RX Can loosen easily if taking them on and off a lot Very light weight

Question 38

Inline frames

Answer 38

Hybrid of semilrimelss and a full frame | -acts like a semi rimless but goes into a full frame

Question 39

Combination hybrid

Answer 39

Combination of materials

Question 40

What material in frames contains nickel

Answer 40

Monel

Question 41

What frame material contains copper

Answer 41

Monel

Question 42

What is in hinges, inner core or temples

Answer 42

Nickel silver

Question 43

Monel

Answer 43

Has nickel in it, so cannot give it to people with allergies - Durable - cheaper - most common material

Question 44

For allergie, what frame material is a good option

Answer 44

Titanium

Question 45

Flexon

Answer 45

Trade marked Very flexible Titanium based alloy

Question 46

Plastic frame material

Answer 46

``` ZYL Most common plastic frame Lower cost and allow for trendier looks Easier to break Sunlight can damage it ```

Question 47

Some other materials

Answer 47

``` Silver Gold Wood Bone Horn Tortoise shell Leather Semi-precious and precious stones ```

Question 48

Allergies to materials

Answer 48

Usually caused my nickel They will request titanium frames if they already know Sometimes they do not know and will come in with a reaction Nose pads: some people are allergic to silicone.