Description

The HOYA Vivinex™ Toric IOL, Model XY1AT4, is a specialized intraocular lens designed to address astigmatism during cataract surgery. Crafted from glistening-free hydrophobic acrylic, this lens offers exceptional clarity and integrates both UV and blue light filters for enhanced eye protection.

Optic Design

• Biconvex Structure: Features an anterior aspheric surface and a posterior toric surface.
• Edge Design: Sharp, square edges to minimize posterior capsule opacification (PCO), enhancing long-term visual outcomes.

Dimensions

• Optic Diameter: 6.00 mm
• Overall Length: 13.00 mm

Power Specifications

• Spherical Power Range: +10.00 to +30.00 diopters (D) in 0.50 D increments.
• Cylinder Power: At IOL plane ranges from 1.00 to 6.00 D, with specific increments for precise correction.

Optical Performance

• Nominal A-Constant: 118.9, with optimized constants available for various calculation formulas.
• Toric Calculator Support: Utilizes the HOYA Toric Calculator for accurate cylinder power calculation.

Haptic Design

The lens features a textured-rough haptic surface made from the same acrylic material, ensuring enhanced stability within the eye.

Injector System

• Preloaded Options: Compatible with multiSert™ or Vivinex™ iSert® injector systems.
• Injector Tip Diameter: 1.70 mm
• Recommended Incision Size: 2.20 mm

Clinical Benefits

• Rotational Stability: Demonstrates a median rotation of 1.1°, with 100% of lenses showing ≤5° rotation up to six months post-operation.
• Aspheric Optic Design: Partially compensates for corneal spherical aberration, improving image quality.
• Surface Processing: Active oxygen processing and a smooth, regular IOL surface reduce PCO rates and Nd:YAG capsulotomy needs.

Indications

This lens is intended for healthcare professionals and is designed for patients undergoing cataract surgery with astigmatism correction needs. Availability may vary by country, making it essential for practitioners to verify local access.

Conclusion

With its advanced design and proven clinical performance, the HOYA Vivinex™ Toric IOL XY1AT4 stands out as a reliable choice for achieving superior visual outcomes in cataract surgery patients with astigmatism.