Retina Forward Design
Instructions:
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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.
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1. RFD stands for:
A. Route For Delivery
B. Real Far Distance
C. Rotation Fear Disorder
D. Retina Forward Design
2. One aspect of RFD technology analyzes 5,000 points on
each lens using:
A. Freeform points files
B. Computerized models of the human eye
C. Aberration-inducing equipment
D. Charts and graphs of ocular pathology
3. A minus lens becomes effectively weaker when:
A. Vertex distance is increased
B. The Rx is increased
C. Pupillary distance is increased
D. Retinal centers are increased
4. Increasing the vertex distance of a plus lens:
A. Increases the power of the lens
B. Decreases the power of the lens
C. Induces power error
D. Induces cylinder
5. Rapid power changes can cause a patient to experience:
A. Eyelashes hitting their lenses
B. Loss of vision
C. Swim and sway
D. Cataracts
6. Aspects considered in actual lens wear using RFD
technology include:
A. Size, shape, and optical quality of the power zones
B. How the lenses are read on a lensometer
C. Viewing angle, pantoscopic tilt, vertex distance, and
object distance
D. Diagrams of reference points
7. Aspheric lenses have:
A. Flatter curves
B. Narrower curvesv
C. Steeper curves
D. Base curves
8. Lenses made using Retina Forward Design technology
provide a _____ wider intermediate viewing area.
A. 100 percent
B. 78 percent
C. 45 percent
D. 25 percent
9. Retina Forward Design sharpens images at:
A. The pupil
B. The optical center
C. The 180 degree line
D. The retina
10. One of the two sets of values printed on the dispenser's
portion of the wearer's guide are:
A. Vertex distance fields of view
B. Short-corridor and standard corridor fitting heights
C. Retinal camera image findings
D. Prescribed values for sphere, cylinder, axis,
and add power
11. The near reference point power verification is done:
A. At the optical center
B. At the bottom of the distance vision line
C. At the center of the near vision circle
D. At the add power starting point
12. The prism reference point is located:
A. 3mm below the center of the fitting cross
B. 5mm above the center of the fitting cross
C. At the 12mm vertex distance
D. At the 17mm seg. height
13. Most patients see eyecare professionals to:
A. Learn about the latest lens technology
B. Listen to lifestyle dispensing techniques
C. Fill a new Rx
D. Get a cup of complimentary coffee
14. Price is a ______ factor in most eyewear purchasing
cases.
A. Minor
B. Major
C. Neutral
D. Unknown
15. One of an ECP's most valuable assets is:
A. A well-designed office
B. Their next-day delivery service
C. Up-to-the-minute frame selection
D. Their relationship with their patients