Description

The HOYA TORIC IOL XY1AT4, known as Vivinex™ Toric, is a specialized intraocular lens designed for use in cataract surgery, offering effective correction for patients with astigmatism. Crafted from hydrophobic acrylic material, this lens is engineered to be glistening-free, ensuring clear vision without unwanted visual artifacts. It incorporates both UV and blue light filters to protect the eye post-surgery.

Optical Design

• Biconvex Optic: Features a square, thin, and textured edge for enhanced performance.
• Aspheric Design: The anterior aspheric design improves image quality and compensates for corneal spherical aberration, providing better tolerance to optical imperfections like coma.
• Toric Design: The posterior surface is designed to address astigmatism effectively.

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 Options: Various levels to suit individual patient needs, ensuring precise astigmatism correction.

Haptic Design

The lens features a textured-rough haptic surface, also made from hydrophobic acrylic, which enhances the lens's stability within the eye. This design contributes to the lens's exceptional rotational stability, with clinical results showing minimal rotation post-surgery.

Injector System

The lens comes with a preloaded multiSert™ or Vivinex™ iSert® injector system, facilitating a smooth implantation process. The injector system is designed for a recommended incision size of 2.20 mm, promoting minimally invasive surgical techniques.

Surface Treatment and PCO Prevention

Advanced surface treatments, including active oxygen processing, create a smooth and regular IOL surface. The sharp, square optic edge design significantly reduces the risk of posterior capsule opacification (PCO), a common post-surgical complication. Clinical studies indicate lower PCO rates and reduced need for Nd:YAG capsulotomy compared to other lenses.

Compatibility and Calculation Tools

The HOYA TORIC IOL XY1AT4 is compatible with the HOYA Toric Calculator and supports advanced formulas like the Abulafia–Koch Regression for precise surgical planning. These tools help healthcare professionals achieve optimal outcomes by accounting for posterior corneal astigmatism.

Intended Use

This lens is intended for use by healthcare professionals during cataract surgery to provide clear, stable vision for patients with astigmatism. Its innovative design and advanced features make it a reliable choice for enhancing visual outcomes in complex surgical scenarios.