Description

The HOYA Vivinex™ Toric IOL, Model XY1AT4, is a specialized intraocular lens designed to enhance visual outcomes for patients undergoing cataract surgery with astigmatism. Crafted from glistening-free hydrophobic acrylic, this lens offers exceptional clarity and durability, minimizing unwanted visual artifacts.

Advanced Optic Design

• Aspheric and Toric Surfaces: The lens features an anterior aspheric surface and a posterior toric surface, engineered to partially compensate for corneal spherical aberration, thereby improving image quality.
• UV and Blue Light Filtering: Integrated filters provide additional protection for the eye, enhancing visual comfort.

Dimensions and Power

• Optic Diameter: 6.00 mm
• Overall Length: 13.00 mm
• Spherical Power Range: +10.00 to +30.00 diopters
• Cylinder Power: Specific to model XY1AT4, with precise increments for tailored vision correction.

Haptic Design and Stability

The textured-rough haptic surface ensures enhanced lens stability within the eye. Clinical studies demonstrate outstanding rotational stability, with over 96% of lenses rotating ≤5° up to six months post-operation.

Surface Treatment

The lens's posterior surface undergoes active oxygen processing, resulting in a smooth, regular surface. The square optic edge design significantly reduces the incidence of posterior capsule opacification (PCO), maintaining long-term visual clarity.

Preloaded Injector System

The Vivinex™ iSert® multiSert™ system facilitates precise lens implantation through a recommended incision size of 2.20 mm. The system allows for both single-handed and two-handed injection techniques, providing flexibility and control during surgery.

Calculation and Alignment Tools

The HOYA Toric Calculator, along with the Abulafia–Koch Regression formula, aids in accurate cylinder power calculation, considering posterior corneal astigmatism. Axis orientation marks on the lens's posterior surface assist in precise alignment.

Clinical Benefits

Designed for healthcare professionals, the HOYA Vivinex™ Toric IOL XY1AT4 offers:

• Reduced glistening and PCO for clearer vision
• Enhanced image quality through proprietary aspheric optics
• Ease of implantation with advanced injector technology

This lens represents a comprehensive solution for achieving optimal visual outcomes in cataract patients with astigmatism.