Competency 4.1.2 Flashcards
1
Q
Spectacle Frame Checks
A
- Check the colour matches the order
- Total side length
- Length to bend
- Distance between lenses
- Eye size
2
Q
Spectacle Lens Checks
A
- Has been made from the correct material
- Has the correct specified tint if applicable
- Has any coatings specified in the order
- Is of correct form e.g. bifocals etc
- Check varifocal markings
3
Q
BS Cyl Axis Tolerances
A
0.25DC > 16 degrees
0.50DC > 9 degrees
0.75DC > 6 degrees
1.50DC > 4 degrees
2.50DC > 3 degrees
Over 2.50DC > 2 degrees
4
Q
BS Add Power Tolerances
A
Upto +4.00DS > ±0.12DS
Over +4.00DS > ±0.18DS
5
Q
BS Multifocal Lens Positioning Tolerances
A
OCs > Less than 1mm
Heights > Less than 1mm
Pantascopic tilt - no more than 2 degrees
6
Q
BS SVD BVP (and MF) Tolerances
A
Under 12.00DS > Less than 0.25DS
Over 12DS > 0.25DS (as for MF)
Cyl over 6.00DC > 0.25DC
7
Q
A
