Description
The HOYA Vivinex™ Toric Intraocular Lens (IOL) is designed for implantation during cataract surgery, specifically addressing the correction of pre-existing corneal astigmatism. This advanced lens offers a range of features tailored to enhance visual outcomes and surgical precision.
Key Features
- Optic Design: The lens features a biconvex optic with a square, thin, and textured edge. Its anterior aspheric optic design partially compensates for corneal spherical aberration and improves tolerance to coma, while the posterior toric design effectively corrects astigmatism.
- Haptic Design: The textured-rough haptic surface and C-loop haptic design contribute to enhanced rotational stability, crucial for consistent visual performance post-surgery.
Material and Surface Treatment
Crafted from hydrophobic acrylic, the Vivinex™ material ensures glistening-free clarity. The lens integrates UV and blue light filters for added eye protection. Active oxygen processing on the posterior surface and a sharp square optic edge help minimize posterior capsule opacification (PCO).
Dimensions and Power Ranges
- Optic Diameter: 6.00 mm
- Overall Length: 13.00 mm (with some models ranging from 12.5 mm to 13.00 mm)
- Spherical Power: +10.00 D to +30.00 D
- Cylinder Power: 1.00 D to 6.00 D at the IOL plane
Injector System
The preloaded multiSert™ or Vivinex™ iSert® injector system features a front injector tip outer diameter of 1.70 mm, with a recommended incision size of 2.20 mm. This system allows for precise control during implantation, enhancing surgical outcomes.
Clinical Performance
The Vivinex™ Toric IOL demonstrates exceptional rotational stability, with a median rotation of 1.1° and 100% of lenses exhibiting ≤5° rotation through six months post-surgery. It significantly reduces posterior capsule opacification and Nd:YAG capsulotomy rates, contributing to clearer vision outcomes.
Certifications and Support
CE 0123 certified, this lens is supported by the HOYA Toric Calculator, including the Abulafia-Koch Regression formula for posterior corneal astigmatism estimation. It is intended for use by healthcare professionals, providing a reliable solution for reducing postoperative refractive astigmatism.
