Precizon Toric is a one-piece toric IOL for in-the-bag fixation. Its unique Transitional Conic Toric lens surface sets the Precizon Toric IOL apart from other toric IOLs. This unique surface allows more tolerance when the lens is slightly misaligned.
Precizon Toric
Model 565Hydrophilic acrylic toric IOL designed to correct astigmatism.
- Aspherical cylinder
- Pupil independent
- Proven stability
Proven stability
Average of 3.1° rotation at 4-6 months*; 1.9° rotation reported by ‘best practice’.
Mechanical Haptic Feature
The space between the inner haptic stays open with compression down to 9 mm. This opening is designed to allow a “fibrosis anchor”. This will enhance the stability and reduce late post-op rotation of the lens.
Offset haptics reduce PCO
The Precizon family IOLs have offset shaped haptics. This shape enables the lens to adhere to the posterior capsule, to prevent early postoperative rotation and to reduce PCO.
Designed for...
Greater tolerance for misalignment
The patented Transitional Conic Toric (TCT) surface blends into the aspheric surface of all meridians, leading to a broader toric surface. This keeps the toric surface in alignment with the patient’s astigmatism even when slightly misaligned. Rotation of toric IOLs has been well documented. It has been shown that for every degree of rotation off intended axis, 3% of the effect is lost. That is why the Precizon toric with its new surface makes a difference for the patient and the surgeon.
Optimal Contrast Sensitivity and Depth of Focus
Precizon Toric IOLs are aberration neutral. In a conventional spheric lens design, spherical aberration occurs because the dioptric power in the periphery of the lens is different from the dioptric power in the center of the lens (optical axis). These aberrations influence contrast sensitivity and depth of focus. Precizon Toric IOLs have an aspherical anterior side resulting in aberration-neutral IOLs.
Specifications
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Model: |
One-piece IOL, in-the-bag fixation |
|
Refractive Index: |
1.46 |
|
Optic Powers / Diopter range: |
+1.0 D to + 34.0 D (0.5 increments) Cylinder 1.0 D to 10.0 D (0.5 increments) |
|
Lens Material: |
Hybrid hydrophobic & hydrophilic monomers. Ultraviolet filtering HEMA/EOEMA Copolymer |
|
Body Ø: |
6.0 mm | Transitional Conic Toric | Biconvex |
|
Overall Ø: |
12.5 mm |
|
Angulation: |
0° |
|
A-constant ultrasound: |
118.0 |
|
A-constant optical: |
118.6 (SRK T) |
|
IOL spherical aberration: |
360° | 0 µm |
Explanation of a TCT optic Downloads
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Precizon Family Brochure
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Precizon Toric Factsheet
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Steps for Toric implantation
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Precizon Patient Brochure
Publications
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2023
Astigmatism management in cataract surgery with Precizon toric intraocular lens: a prospective study
Vale C, Menezes C, Firmino-Machado J, Rodrigues P, Lume M, Tenedório P, Menéres P, Brochado MC. Clinical Ophthalmology, 19 January 2016.
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2019
Comparison of clinical outcomes of toric intraocular lens, Precizon vs Tecnis: a single center randomized controlled trial.
Jung N.Y., Lim D.H., Hwang S.S., Hyun J., Chung T.Y. BMC Ophthalmology 2019; 18(1):292.
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2018
Transitional conic toric intraocular lens for the management of corneal astigmatism in cataract surgery.
Bandeira F., Morral M., Elies D., Eguiza S., Souki S., Manero F., Güell J.L. Clin Ophthalmol. 2018; 12:1071-79.
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2017
Clinical outcomes after implantation of a toric intraocular lens with a transitional conic toric surface.
Thomas BC, Khoramnia R, Auffarth GU, Holzer MP. Br J Ophthalmology, August 3, 2017.
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2016
Clinical Outcomes After Cataract Surgery With a New Transitional Toric Intraocular Lens
Ferreira TB, Berendschot TT, Ribeiro FJ. Journal of refractive surgery 2016; Jul 1;32(7):452-9.
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2015
Evaluation of optical performance of 4 aspheric toric intraocular lenses using an optical bench system: Influence of pupil size, decentration, and rotation.
Kim MJ, Yoo YS, Joo CK, Yoon G. J Cataract Refract Surg. 2015 Oct;41(10):2274-82.
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2015
Visual and Optical Outcomes of New Monofocal Toric IOL
Tiago B. Ferreira, MD; Pedro Simões, MD; Eduardo F. Marques, MD. ASCRS 2015.
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2014
Evaluation of a new toric IOL optic by means of the ORA system: the effect of IOL misalignment on cylinder reduction
E. Mertens MD. ESCRS 2014.
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