Quiz 9 Flashcards
A _____ is used to measure the lens surface curves.
Geneva Lens Measure (Lens Clock)
The “four point touch” test is used to check horizontal alignment.
False: it is used to check for vertical misalignment
Which of the following is the best method for heating nylon frames? Hot water hot air or frame warmer extremely hot air or frame warmer microwave oven
Hot water - they don’t stretch, but they are a little pliable
What are two horizontal misalignments
rotated lens and skewed bridge
When a lens is completely inserted into a zyl frame, but the lower lens bevel appears to be showing more than the top bevel, it is called:
rolled eyewire
To increase the pantoscopic tilt on a pair of glasses, angle both temples down.
True
The proper way to measure near point segments power is to turn the glasses around in the lensometer so that the temples are pointing toward you.
True
Which of the following is the best method for heating Optyl frames?
Extremely hot air or frame warmer
What adjustment would you need to make if the frame set low on the clients face on the right side?
lower the right temple
When verifying an Rx from the lab, always use the actual (original) Rx to compare results.
True
We put frames into bench alignment so that, when we adjust them, we will bend to the client’s asymmetry, not the frame’s asymmetry.
True
When using glass beads to heat frames, stir the beads before putting the frame into it.
True
If salt glass beads stick to the frame while heating, ______ can be added to the salt pan to alleviate the problem
Talcum Powder
When considering lens insertion, the lenses should be inserted from the front side, from temporal to nasal.
True
When inserting a lens, if success is not achieved on the first try, heat the frame and the partially inserted lens together, then push the partially inserted lens the rest of the way into the bevel.
False: never heat the lens.
Name the following angle:
Retroscopic
Pantoscopic
Orthoscopic
Microscopic
Orthoscopic
What adjustment would you make for the following scenario: Frame is straight, panto is ok, temples fit behind the ear properly, but still the glasses slide down the face. What would you check?
Open temple angle
Name the following angle:
Retroscopic
Pantoscopic
Orthoscopic
Microscopic
Pantoscopic
What are two vertical misalignments?
Four point touch
x-ing
coplanar
face form
Name the following angle:
Retroscopic
Pantoscopic
Orthoscopic
Microscopic
Retroscopic
What is the order in which a frame should be trued?
Bridge, Endpieces, Temples
The normal open temple angle spread is approximately ____ degrees.
85-90
90-100
90-93
100-105
90-93
it has to be between 90-95
Lenses should be removed from the Back side, from Nasal to Temporal
True (you push them out from the back side nasal to temporal)
Which of the following is the best method for heating zyl frames?
Hot air or frame warmer
What would two affects be when the bridge on a frame is widened:
sits higher and closer
sits higher and further out
sits lower and further out
sits lower and closer
sits lower and closer
