7.3 Spectacle Adjustments

Question 1

Panto tilt

Answer 1

Bottom of lens tilted toward face to get more reading power for pt as they look down

Question 2

Purpose of panto tilt

Answer 2

To get more reading area for pt

Question 3

Is panto tilt easier with nose pad frames or plastic frames

Answer 3

Nose pad frames are easier to adjust

Question 4

Retroscopic tilt

Answer 4

Opposite of panto(more common), is less common retroscopic tit, bottom of lens is tilted away from face

Question 5

Purpose of retroscopic tilt

Answer 5

Lift seg height for distance by just a hair, getting nausea walking down stairs with too much panto

Question 6

Frame sits to high on nosepad frames

Answer 6

Widen nose pads to lower the frame

Question 7

Frame sits to low on nosepad frames

Answer 7

Tighten nose pads to raise frame

Question 8

Temple

Answer 8

Arm

Question 9

SEG height

Answer 9

Line bifocal hieght

Question 10

Progressive lens is a no-line bifocal or trifocal

Answer 10

Trifocal. PAL has distance, computer, and near

Question 11

Flat top 28 bifocal means

Answer 11

The top of ADD NEAR portion is flat. It’s 28mm wide

Question 12

Measurement of bifocal seg height vs Trifocal/PAL

Answer 12

bifocal seg height aligns with lower lid margin, trifocal or PAL seg height lines up with lower pupil or iris margin

Question 13

What will a lensometry read for an add of +2.00 if the top portion of a bifocal reads +2.00-1.75x090

Answer 13

Bottom reads+4.00-1.75x090