Convert the following base curves in radius of curvatures to base curves in diopters.
1. 7.85mm
2. 7.50mm
3. 8.80mm
Convert the following base curves in diopters to base curves in radii of curvatures.
1. 43.00D
2. 46.50D
3. 39.25D
Which of the following is the steeper curve?
1. 43.00D or 46.00D?
2. 39.50D or 39.00D?
3. 7.35mm or 7.00mm?
4. 8.36mm or 8.56mm?
5. 8.23mm or 42.00D?
6. 41.25D or 8.43mm?
Which of the following is the flatter curve?
1. 41.00D or 41.50D?
2. 45.00D or 44.25D?
3. 7.85mm or 7.95mm?
4. 8.26mm or 7.95mm?
5. 39.50D or 8.65mm?
6. 7.33mm or 45.50D?
1. What is the diameter of the RGP if the OZ is 7.53mm and the secondary curve width is 0.4mm?
2. What is the diameter of the RGP if the OZ is 7.2mm, the IPC is 0.3mm, and the PPC is 0.2mm?
3. What is the OZ measurement of an RGP if the OAD is 9.2mm, the IPC is 0.3mm, and the PPC is 0.2mm?
4. What is the OZ measurement of an RGP if the OAD is 9.5mm, the IPC is 0.2mm, and the PPC is 0.3mm?