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Ophtec Precizon Presbyopic Toric IOL

Precizon Presbyopic is a hybrid, acrylic IOL designed to correct Presbyopia and Astigmatism.

This lens has a broad central zone. The visual axis passes through the wider central segment avoiding visual disturbances by the Kappa Angle.
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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Technical specifications
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:
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)