Description

The HOYA Vivinex™ Toric Intraocular Lens (IOL), Model XY1AT2, is a sophisticated solution designed by Hoya Surgical Optics for patients undergoing cataract or refractive lens exchange surgery. This lens is specifically engineered to correct astigmatism, providing enhanced visual clarity and reducing dependence on corrective eyewear.

Advanced Optic Design

• Biconvex Aspheric Optic: The anterior aspheric design helps in compensating corneal spherical aberration, while the posterior toric design effectively addresses astigmatism.
• Glistening-Free Material: Ensures optical clarity, complemented by a UV and blue light filter for added ocular protection.
• Square Edge Technology: The textured optic edge with active oxygen processing minimizes posterior capsule opacification (PCO), maintaining long-term visual performance.

Dimensions and Power Range

• Optic Diameter: 6.00 mm
• Overall Length: 13.00 mm
• Spherical Power: Ranges from +10.00 D to +30.00 D in 0.50 D increments.
• Cylinder Power: Available in various increments, tailored for precise astigmatism correction.

Haptic Design for Stability

The lens features loop haptics with a textured-rough surface, ensuring stable positioning within the eye. This design contributes to the lens's renowned rotational stability, with over 96% of lenses rotating ≤5° up to six months post-surgery.

Injector System

The preloaded multiSert™ or Vivinex™ iSert® injector system facilitates seamless implantation through a recommended incision size of 2.20 mm. The front injector tip's outer diameter of 1.70 mm allows for precise and minimally invasive insertion.

Clinical Performance

• Rotational Stability: Median rotation of just 1.1°, with a mean deviation from the calculated cylinder axis of 3.8° ± 3.5°.
• Visual Acuity Outcomes: Significant reduction in refractive astigmatism, with postoperative visual acuity metrics demonstrating excellent results.

Compatibility and Calculation

The HOYA Vivinex™ Toric IOL XY1AT2 is compatible with the HOYA Toric Calculator, enhancing precision in cylinder power calculation, including posterior corneal astigmatism. Optimized constants are available for various formulas, ensuring tailored outcomes for each patient.

Intended Use

This lens is ideal for patients seeking astigmatism correction during cataract surgery, and it can be used in combination with supplementary trifocal IOLs for those desiring reversible trifocality and greater spectacle independence.

Conclusion

With its advanced design and proven clinical outcomes, the HOYA Vivinex™ Toric IOL XY1AT2 stands out as a leading choice for achieving superior visual clarity and stability in astigmatism correction.