Quiz For Ophthalmic Frames

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When utilizing the boxing system of measurement, the “B” measurements represents the________________.

A patient is found to have a monocular PD measuring R: 34mm and L: 32mm. The box measurement of the frame selected equals 56/20. Locate the major reference points (MRPs) for each eye.

Which of the following best describes a semi-rimless mounting?

When the measurements of patient’s PD and the GCDs are identical, the frame should be adjusted with:

One possible method of relieving a sore nose caused by the back edge of the nose pads is to:

A frame contains 10 degrees of pantoscopic angle. Ideally, the gaze will be directed approximately_________________above the optical center of the lens.

Pantoscopic angle may be increased by:

The geometrical center distance of a frame measuring 52/16 is:

A frame measures 50/18 and has an effective diameter of 52 mm. If the patient’s PD measures 59 mm, the theoretical minimum blank size required is:

If the right temple is angled out, this will cause:

The frame selection criteria most suitable for use with higher plus prescription lenses is:

“Bowing” the temples is a term used to describe__________________________.

When determining the actual minimum blank size, which of the following does not need to be considered?

While doing a frame adjustment, you notice the bottom of the eyewires are touching the cheeks. To remedy this situation you will:

When the measurement of the patient’s PD is less than the GCD’s of the frame, it is best to adjust the frame with:

The front of the frame may be raised by_____________________________.

________________angle exists when the bottom of the eyewire is inclined outward, farther away from the face than the top.

In order to decrease the distance between the nose pads of a frame it is necessary to bend the pad arms:

The term DBL designates the___________________.

The frame size is 54/20 and the patient’s PD measures 66 mm. In this case:

What would be the “theoretical” minimum blank size for the following frame and PD combination?
Box measurements: A=52mm; DBL=16mm; ED=53mm; PD=58 mm

Angling the pad arms farther apart will result in:

The “B” measurement of a frame is equal to 56mm on the box. A FT 35 bifocal segment is fit at a height of 21mm.
Where is the segment line positioned relative to the datum line of the frame?

A frame with a saddle bridge has been selected for a child of seven years. For which of the following reasons is this a better choice than a comparable frame with adjustable pads?

1. A saddle bridge distributes the weight of the completed eyewear more evenly over a greater portion of the nose area.
2. In the event of an accident, adjustable pads are more likely to cause injury.
3. A saddle bridge retains its adjustment better than a frame with adjustable pads.

If the patient’s left ear is higher than the right, and the frame is in standard alignment, it can be expected that the frame will fit:

A frame with pantoscopic tilt is fit so that:

Your patient has selected a frame with the following dimensions: A=56 mm; B=52 mm; DBL= 22 mm
If the segment line is dropped 6 mm below the datum line, what is the seg height?

The boxing system of measurement can accurately locate the____________ of the lens.

This course has expired