Description

The HOYA Vivinex™ Toric IOL, available in models XY1A and XY1A-SP, is a sophisticated intraocular lens designed to correct astigmatism during cataract surgery. Crafted from glistening-free hydrophobic acrylic, this lens features an aspheric design that enhances visual clarity while incorporating UV and blue light filters for added eye protection.

Optic and Haptic Design

• Optic Design: The lens boasts a biconvex optic with a square, thin, and textured edge. Its anterior aspheric and posterior toric designs contribute to superior visual outcomes.
• Haptic Design: The textured-rough haptic surface ensures enhanced stability, crucial for maintaining the lens's position within the eye.

Surface Treatment and Stability

The lens undergoes active oxygen processing, resulting in a smooth, regular surface. This, combined with a square optic edge, significantly reduces posterior capsule opacification (PCO). The rotational stability of the lens is remarkable, with a median rotation of just 1.1°, ensuring consistent alignment post-surgery.

Dimensions and Power Range

• 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: Ranges from 1.00 to 6.00 D at the IOL plane, providing precise astigmatism correction.

Lens Constants

The lens includes optimized constants for various calculation formulas, enhancing its adaptability to individual patient needs. These include:

• Haigis
• Hoffer Q
• Holladay 1
• SRK/T

Injector System

The preloaded multiSert™ or Vivinex™ iSert® injector system allows for flexible implantation, accommodating both single-handed and two-handed techniques. The system's design supports a recommended incision size of 2.20 mm, promoting minimally invasive surgery.

Clinical Benefits

The proprietary aspheric optic design partially compensates for corneal spherical aberration, improving tolerance to coma. The lens's surface treatment and edge design lead to reduced PCO, as evidenced by lower PCO scores and Nd:YAG capsulotomy rates in clinical studies.

Indications

This intraocular lens is intended for use by trained ophthalmologists, offering a reliable solution for patients undergoing cataract surgery with concurrent astigmatism correction. Its advanced features and proven clinical outcomes make it a valuable tool in achieving optimal visual results.

The HOYA Vivinex™ Toric IOL exemplifies precision engineering in ophthalmic care, providing clarity and stability for enhanced patient satisfaction.