Description

The HOYA Vivinex™ Toric Intraocular Lens (IOL), Model XY1A-SP, is expertly crafted for healthcare professionals performing cataract surgery on patients with pre-existing corneal astigmatism. This advanced lens is designed to provide precise vision correction, enhancing patient outcomes through its innovative features.

Advanced Optic Design

• Biconvex Optic: Features a square, thin, and textured edge for optimal performance.
• Aspheric Anterior Surface: Partially compensates for corneal spherical aberration, improving tolerance to coma.
• Toric Posterior Surface: Specifically engineered for effective astigmatism correction.
• Axis Orientation Marks: Located on the posterior surface for accurate alignment.

Material and Light Filtration

Crafted from glistening-free hydrophobic acrylic, the Vivinex™ material integrates UV and blue light filters, ensuring long-term clarity and protection.

Haptic Design for Stability

The lens includes a textured-rough haptic surface with a C-loop design, promoting stable positioning within the eye.

Dimensions and Power Range

• Optic Diameter: 6.00 mm
• Overall Length: 13.00 mm
• Spherical Power: Ranges from +10.00 to +30.00 diopters in 0.50 D increments.
• Cylinder Power: At the IOL plane, ranges from 1.00 to 6.00 D, with specific increments for precise correction.

Optical Constants

The nominal A-constant is 118.9, with optimized constants available for various formulas, enhancing the lens's adaptability to individual patient needs.

Injector System

The preloaded multiSert™ or Vivinex™ iSert® injector system features a front injector tip with an outer diameter of 1.70 mm, suitable for a recommended incision size of 2.20 mm. It supports both single-handed push and two-handed screw injection, offering versatility and control during implantation.

Surface Treatment

Active oxygen processing ensures a smooth, regular IOL surface, while the square optic edge design reduces posterior capsule opacification (PCO).

Clinical Performance

• Rotational Stability: Demonstrates a median rotation of 1.1°, with 100% of lenses showing ≤5° rotation up to six months post-implantation.
• Long-term Clarity: The glistening-free material reduces PCO and Nd:YAG capsulotomy rates compared to other IOLs.
• Visual Acuity Improvement: Aims to enhance uncorrected distance visual acuity and reduce postoperative refractive astigmatism.

The HOYA Vivinex™ Toric IOL stands out for its consistent delivery, biocompatibility, and commitment to improving visual outcomes for cataract patients with astigmatism.