LOG3

1.
Choose the correct definition for the weight of a plastic frame.
A. Only the sides of the bridge come in contact with the nose in a plastic frame.
B. Opposite sides are parallel, adjacent sides are perpendicular, and all sides are tangent to the lens.
C. The term referring to the thickness of the plastic for plastic temples and fronts.
D. A bridge that follows the shape and contour of the nose. The entire bridge comes in contact with the nose.

2. Choose the correct definition for a keyhole bridge.
A. A bridge that follows the shape and contour of the nose. The entire bridge comes in contact with the nose.
B. The term referring to the thickness of the plastic for plastic temples and fronts.
C. Opposite sides are parallel, adjacent sides are perpendicular, and all sides are tangent to the lens.
D. Only the sides of the bridge come in contact with the nose in a plastic frame.

3. Choose the correct definition for a saddle bridge.
A. The term referring to the thickness of the plastic for plastic temples and fronts.
B. A bridge that follows the shape and contour of the nose. The entire bridge comes in contact with the nose.
C. Opposite sides are parallel, adjacent sides are perpendicular, and all sides are tangent to the lens.
D. Only the sides of the bridge come in contact with the nose in a plastic frame.

4. Choose the correct definition for boxing system.
A. Only the sides of the bridge come in contact with the nose in a plastic frame.
B. Opposite sides are parallel, adjacent sides are perpendicular, and all sides are tangent to the lens.
C. A bridge that follows the shape and contour of the nose. The entire bridge comes in contact with the nose.
D. The term referring to the thickness of the plastic for plastic temples and fronts.

5. Match the temple type with the correct description.
Comfort cable
Convertible
Library
Riding bow
Skull
-Constructed of a metal flexible coiled cable
-Bend down behind the ear with bent portion narrower and widen toward the end
-Can be used straight back or bent behind the ear
-Used straight back with pressure against the side of the head
-Curve around the ear and made of plastic

6. Match the plastic frame materials with the correct description.
Carbon fiber
Cellulose acetate
Optyl
Polycarbonate
Propionate
-Used when making injection molded frames and has less color stability
-Combined with nylon to create a thin strong frame
-Highly impact resistant and often used as a lens material
-Epoxy resin used in a vacuum process mold
-Extensively used and extracted from cotton or wood pulp

7. A lens has a frame difference of 6 mm and the following measurements: A = 55 mm and C = 49 mm. What is the B measurement?
A. 46 mm
B. 49 mm
C. 43 mm
D. 52 mm

8. A frame has an A measurement of 54 mm and a DBL of 18 mm. What is the GCD?
A. 72 mm
B. 66 mm
C. 63 mm
D. 69 mm

9. A frame has an A measurement of 54 mm and a DBL of 18 mm. If the distance optical centers of the lenses were decentered 2 mm per eye, the GCD would change. TRUE OR FALSE
True False

13. A frame has “1/10 12K GF” stamped on it. The 1/10 means that 1/10 of the total weight is gold alloy.
TRUE OR FALSE
True False

14. A frame has “1/10 12K GF” stamped on it. The 12K means that 12 out of 48 parts of the alloy are gold.
TRUE OR FALSE
True False

15. A frame has “1/10 12K GF” stamped on it. GF means gold filled.
TRUE OR FALSE
True False

16. Choose three factors that should be considered when fitting a child with a frame.
A. Use a sturdy frame
B. Use a nylon cord frame
C. Use a spring hinged frame
D. Use a copy of an adult frame style
E. Use Trivex lenses
F. Use hardened glass lenses

17. Choose the correct statement regarding a high myope to avoid excessive decentration.
A. Suggest a smaller eye size and narrower bridge to allow the lenses to be centered properly.
B. Suggest a smaller eye size and wider bridge to allow the lenses to be centered properly.
C. Suggest a larger eye size and narrower bridge to allow the lenses to be centered properly.
D. Suggest a larger eye size and wider bridge to allow the lenses to be centered properly.

18. When viewed from the side of the head, the length of the face is measured from the chin to the temple.
TRUE OR FALSE
True False

19. A temple that attaches to the top of a frame will decrease the length of the face.
TRUE OR FALSE
True False

20. A temple that attaches to the bottom of the frame will increase the length of the face.
TRUE OR FALSE
True False

21. The length of the nose is measured from the tip of the nose to the bridge of the frame.
TRUE OR FALSE
True False

22. A saddle bridge will increase the length of the nose.
TRUE OR FALSE
True False

23. A keyhole bridge will increase the length of the nose.
TRUE OR FALSE
True False

24. When fitting a high plus patient with a frame choose a frame with smaller eye sizes.
TRUE OR FALSE
True False

25. When fitting a high plus patient with a frame choose a frame with an unusual shape and long corners. TRUE OR FALSE
True False

26. When fitting a high plus patient with a frame use effective diameters no larger than +4 mm.
TRUE OR FALSE
True False

27. When fitting a high plus patient use an aspheric high index plastic lens design.
TRUE OR FALSE
True False

28. When fitting a high plus patient with a frame choose a frame with straight back temples.
TRUE OR FALSE
True False

29. A frame with rimless or semi-rimless mountings and screws that pass through the lenses should not be cleaned in an ultrasonic cleaner.
TRUE OR FALSE
True False

30. A frame with glued-in rhinestones or jewels should be cleaned in an ultrasonic cleaner.
TRUE OR FALSE
True False

31. In the dispensary, alcohols must be kept in a closed container because alcohol presents a fire hazard.
TRUE OR FALSE
True False