Edging Today's Lenses
Instructions: A. Complete the form below with your name and address and ABO ID Number. We cannot process tests or send your CEC, if there are blank or incomplete fields. B. Scroll through this window to view questions. For each question, choose the best answer A, B, C, or D and then use your mouse to check the corresponding button at right. There can only be one answer for each question. C. Check to be sure all information is correct and that you have answered all questions. Press the Submit Test button below the answers to submit your test. Seiko will grade your test and send your CEC or notice of failure in 7 to 10 business days.

1. Today's edgers are capable of edging:
A. Three lens materials
B. Lens and frame materials
C. Only Trivex material
D. Glass, high index, polycarbonate, Trivex, and
other lens materials

2. When chucking a lens, the operator can select:
A. Delicate, average, or strong pressure
B. Black and white, color, or neutral settings
C. Computer mode, manual mode, or tracing mode
D. Hot, cold, or warm temperatures

3. High-tech maintenance functions allow operators to:
A. Change viewing screen colors
B. Type in automatic prescription review
C. Perform routine maintenance without
technical assistance
D. Call the technical support group for expert input

4. Most in-house and large-output systems feature:
A. Noise-free operation
B. Scent-blocking processing
C. Guaranteed spoilage warranty
D. A small footprint

5. One of the benefits of automatic edging is:
A. Operator error warning
B. Output consistency and control
C. Increased lens handling by operators
D. Equipment cost reduction

6. Automatic drilling capabilities in an edger can
help create:
A. New progressive addition lenses
B. Scratch-resistant lenses
C. Color-matching to frame style
D. Custom-shaped rimless lenses

7. The most common challenge with edging super hydro-
phobic AR coated lenses is:
A. Breakage
B. Buckling
C. Slippage
D. Swarf

8. Most large lens manufacturers ship their super
hydrophobic lenses with:
A. Processing stickers
B. Blocks
C. Clamps
D. Tracer

9. If there are air bubbles when manually applying
stickers or pads, you should:
A. Run the lenses under water
B. Edge the lenses with the air bubbles intact
C. Remove air bubbles with chuck pressure
D. Remove air bubbles by pressing
them out with your fingers

10. With most edgers, the electronically controlled clamping
pressure holds the lens at two different pressures during
the edging process. One of those pressures is to:
A. Hold the lens while it's in the machine
B. Hold the lens on ejection from the machine
C. Hold the lens at different angles
D. Hold the lens at a 90-degree angle

11. The type of finishing block that should be used when
edging super hydrophobic oleophobic AR lenses is:
A. A water-based block
B. A non-metal block
C. A color-coded block
D. A self-cleaning block

12. One of the edging cycle settings that reduces torque and
helps prevent slippage is:
A. "Butterfly wings"
B. "Cotton cushion"
C. "Permanent press"
D. "Wine glass"

13. Always perform __________ on every lens before
processing:
A. Axis alignment
B. Prescription preview
C. Cosmetic inspection
D. Edge notching

14. To avoid fingerprints on the lenses, always:
A. Handle lenses by the optical center
B. Handle lenses by the edges
C. Handle lenses using a tissue or paper towel
D. Handle lenses with a caliper

15. When re-edging a lens, do so only if:
A. The lens is still blocked and water hasn't
seeped under the sticker or pad
B. The lens is de-blocked and completely
immersed in water first
C. The lens sticker or pad is re-fitted under
the block
D. The lens sticker or pad is reapplied off-center
and over the lens edge

16. When edging polycarbonate, it's best to:
A. Rough cut poly wet and bevel cut poly dry
B. Rough cut poly on delicate setting and
bevel cut poly on average setting
C. Rough cut poly dry and bevel cut poly wet
D. Rough cut poly on average setting and
bevel cut poly on delicate setting

17. When edging Trivex, it's best to:
A. Wet cut the entire job unless an edge
polish is needed
B. Dry cut the entire job unless an edge
polish is needed
C. Bevel cut the lenses prior to edging
D. Drill the lenses for rimless mounting
prior to edging

18. A basic definition of "swarf" is:
A. Build up of lens patterns
B. Build up of lens designs
C. Build up of lens materials
D. Build up of lens grindings

19. A basic definition of a lens block is:
A. A silicone or rubber device placed on
the lens in order to edge
B. A measurement device used prior to edging
C. A metal or plastic device placed
on the lens in order to edge
D. A lens rating system based on numerical
codes used prior to edging

20. One of 10 equipment recommendations for an in-office lab production system is :
A. Polarized demonstration device
B. Progressive lens cut-out chart
C. Hand groover for touch-up work
D. Remote tracer