SofLens Multifocal
MultifocalBiweekly
- BC
- 8.5, 8.8
- Dia
- 14.5
- Dk
- 8
- H₂O
- 38.6%
- Power
- +6.00 to -7.00
Power Range
+6.00 to -7.00
Modulus
0.8 MPa
CT @ −3.00D
0.10mm
Extended Wear
No
Material
polymacon
HydrogelNon-ionic
Availability● Available
Pack Sizes6
Available Powers
SPH: +6.00D to -7.00D
ADD: LOW (+0.75D to +1.50D), HIGH (+1.75D to +2.50D)
Design Notes
Optics
Front surface asphere built from multiple aspheric zones over a spherical base curve, with the most plus power at the center of the lens progressing to more minus in the periphery.
Add
Two discrete strengths rather than a continuous range, Low (+0.75D to +1.50D) and High (+1.75D to +2.50D).
Base curve
8.5 for 43.75D and steeper and 8.8 for 43.50D and flatter, steepened to 8.5 when the lens moves or decenters excessively.
Fitting
Equilibrate for 10 minutes, then expect 0.5-1.0mm movement in primary gaze and 1.0-1.5mm in upgaze, over-refracting in 0.25D steps to 20/25 monocularly and 20/20 binocularly.
Visibility tint
Blue, from up to 100 ppm of Reactive Blue Dye 246.
Initial Fitting Guide
| Spectacle Add | Lens Selection |
|---|---|
| +0.75D to +1.50D | LOW OU |
| +1.75D to +2.50D | HIGH OU |
Troubleshooting — Poor Near
| Condition | Action |
|---|---|
| Wearing two LOW | Replace Non-Dom with HIGH. If still poor, use HIGH OU. |
| Wearing two HIGH | Add +0.25D to Non-Dom. |
Troubleshooting — Poor Distance
| Condition | Action |
|---|---|
| Wearing two LOW | Add -0.25D to Dom. |
| Wearing two HIGH | Use LOW (Dom) / HIGH (Non-Dom), or add -0.25D to Dom. |