Ophtec Precizon IOL Presbyopic Toric
Natural vision at all distances
The CTF aspheric surface forms a broad beam of light, a zone with an enhanced depth of focus with uninterrupted high-quality images for the brain to translate into clear vision at all distances
Tolerance of misalignment
In a significant percentage of cases, IOLs tend to rotate a few degrees before they stabilise. This leads to a loss of quality of vision in regular toric IOLs. The TCT optic however is designed to be more forgiving to decentration with less loss of quality of vision
Reducing Glare & Halos
Using segments instead of concentric rings reduces photonic phenomena, allowing patients to adapt more naturally to their new vision
Continuous Transitional Focus (CTF)
For the correction of presbyopia, this lens has a multiple segments optic. A CTF optic has an anterior surface with multiple segments for far and near achieving smooth transition between the segments.
This transition offers a constant defocus between the two sharp focal points, delivering excellent intermediate vision.
Transitional Conic Toric (TCT)
A TCT optic is the foundation of the multifocal segments. A TCT optic is tolerant of misalignment because different conic constants are calculated. Not only on the horizontal and vertical axis, but also between 0° and 90° degrees.
Patented TCT and CTF technology
The patented TCT and CTF technology sets the Precizon Presbyopic Toric IOL apart from other toric presbyopic corrective IOLs on the market.
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Description & Technical Specs
| Model: | 575 Precizon Presbyopic Toric One piece IOL |
|---|---|
| Optic type: | Aberration Negative (- 0.11 μm) Continuous Transitional Focus (CTF) optic |
| Central far zone size Y/X: | 1.4 / 2.6 mm |
| Rotated segments width: | 0.60 mm |
| Number of segments rings: | 3 n |
| Refractive Index: | 1.46 |
| Abbe number: | 47 |
| Optic Powers: | Sphere: +5.0 D to + 34.0 D (0.5 D increments) * / ** Cylinder: +1.0 D to + 6.0 D (0.5 D increments) Power add +2.75 D. |
| Haptic configuration: | Open modified C-loops with offset shaped haptics |
| Lens Material: | Hybrid hydrophobic & hydrophilic monomers. Ultraviolet filtering HEMA/EOEMA copolymer |
| Lens colour: | Clear |
| Body Ø: | 6.0 mm |
| Overall Ø: | 12.5 mm |
| Haptic Angle: | 0° |
| Centre thickness range: | 0.8 to 1.3 mm |
| Body edge thickness: | 0.4 mm |
| A-constant ultrasound: | 118.0 |
| A-constant optical: | 118.8 (SRK T) 118.8 (SRK II) 0.126 (Haigis aO) 0.355 (Haigis a1) 0.157 (Haigis a2) 5.51 (Hoffer-Q pACD) 1.72 (Holladay 1 sf) 1.78 (Barrett suite LF) 0 (Barrett suite DF) |
| Light distribution | 40/60 near/far |
| Injector | IOLmatic push injector system |
* The minimum Sphere power is 1.5 + C e.g. 575A107TY10 = S5.0 & C3.5 (1.5+3.5=5.0)
** The maximum Sphere power is 35 – C e.g. 575A111TY59 = S29.5 & C5.5 (35-5.5=29.5)
