TruForm Optics
Lenses > Presbyopic Designs > Llevations Thin Multifocal
Llevations Thin Multifocal
Patent Numbers (US 5,724,120)(US
5,740,707) (US 5,743,159)
LlevationsThin Fitting Guide (PDF)
Design
- Translating, segmented lens design
- Incorporates a spherical mid-range between distinct distance and near zones on the front surface of the lens
- Recommended to be designed with prism and truncation (Truncation is highly recommended for plus powered lenses)
Candidates
- Patients requiring excellent distance and near vision and who use their mid-range two or more hours each day
- Previously adapted rigid lens wearers
- Those patients who require a rigid lens design based on their corneal topography or refraction
Lens Parameters
- Base curves: 6.5mm to 9.0mm
- Distance powers: +4.00D to -20.00D
- Near powers: made to order
- Diameters: 8.8mm to 10.0mm
- Materials: any
Fitting
- Fitting sets are available, lenses can be fit with k readings/refraction/lid measurements.