Description
The HOYA Vivinex™ Toric IOL, Model XY1AT7, 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 provides exceptional clarity by minimizing unwanted visual artifacts.
Advanced Optic Design
- Biconvex Structure: Features a square, thin, and textured optic edge for improved performance.
- Aspheric and Toric Design: The anterior aspheric and posterior toric design help compensate for corneal spherical aberration, enhancing visual quality.
- UV and Blue Light Filtering: Protects the eye from harmful light exposure.
Dimensions and Power
- Optic Diameter: 6.00 mm
- Overall Length: 13.00 mm
- Power Range: +10.00 to +30.00 D in 0.50 D increments
- Cylinder Power: Ranges from 1.00 to 6.00 D, with precise increments for tailored correction
Haptic Design and Stability
The lens includes a textured-rough haptic surface, ensuring enhanced stability within the eye. Its rotational stability is clinically proven, with over 96% of lenses rotating ≤5°, maintaining optimal alignment post-surgery.
Surface Treatment and Performance
- Active Oxygen Processing: Applied to the posterior surface to maintain a smooth, regular IOL surface.
- Square Optic Edge: Reduces posterior capsule opacification (PCO), leading to clearer vision over time.
Injector System
The preloaded multiSert™ or Vivinex™ iSert® injector system allows for precise implantation through a recommended incision size of 2.20 mm, enhancing surgical efficiency.
Optical Performance
The lens material is designed to limit PCO, with clinical studies indicating significantly lower PCO scores and Nd:YAG capsulotomy rates compared to other IOLs. This ensures long-term visual clarity and reduced need for additional corrective procedures.
Calculation Support
HOYA provides a Toric Calculator using the Abulafia-Koch Regression formula for precise cylinder power calculation, supporting optimal refractive outcomes. This advanced calculation support aids surgeons in achieving desired visual results, tailored to each patient's unique ocular characteristics.
Conclusion
The HOYA Vivinex™ Toric IOL XY1AT7 stands out with its innovative design and reliable performance, offering patients enhanced visual clarity and stability. Its comprehensive features make it a valuable choice for achieving superior refractive outcomes in cataract surgery with astigmatism correction.
