Description
The HOYA Vivinex™ Toric Intraocular Lens (IOL) XY1AT4 is expertly crafted to address astigmatism correction during cataract surgery. This lens is part of HOYA's renowned Vivinex™ series, known for its advanced optical performance and exceptional biocompatibility.
Material and Design
- Material: The lens is made from a glistening-free hydrophobic acrylic, ensuring long-term clarity. It includes a UV and blue light filter for added eye protection.
- Optic Design: Features a biconvex optic with an anterior aspheric design to partially compensate for corneal spherical aberration. The posterior toric design enhances visual outcomes, while the square, thin optic edge and smooth surface contribute to its performance.
- Haptic Design: The textured-rough haptic surface enhances stability, crucial for maintaining the lens position post-surgery.
Dimensions and Power
- Optic Diameter: 6.00 mm
- Overall Length: 13.00 mm
- Spherical Power Range: +10.00 to +30.00 D in 0.50 D increments
- Cylinder Power at IOL Plane: 1.00 to 6.00 D (T2 to T9)
For the XY1AT4 model (T4), the diopter is +14.5 D with a cylinder of 2.25 D at the IOL plane.
Injector System
The lens comes preloaded with the multiSert™ or Vivinex™ iSert® injector system, recommended for a 2.20 mm incision size. This system facilitates precise and safe implantation.
Rotational Stability and PCO Prevention
- Rotational Stability: Demonstrates a median rotation of 1.1°, with over 96% of lenses maintaining ≤5° rotation up to six months post-operation.
- PCO Prevention: Features active oxygen processing treatment and a square optic edge design, reducing posterior capsule opacification. Clinical studies show lower PCO scores and Nd:YAG capsulotomy rates compared to other lenses.
Clinical Benefits
The HOYA Vivinex™ Toric IOL XY1AT4 offers:
- Rotational Stability: Clinically proven to enhance visual outcomes.
- Glistening-Free Material: Ensures clarity over time.
- Aspheric Optic Design: Improves visual results.
- Surface Treatments: Effectively reduces PCO.
Supported by laboratory and clinical data, this lens provides clarity, stability, and biocompatibility, making it a reliable choice for patients undergoing cataract surgery with astigmatism.
