Description

The HOYA Vivinex™ Toric Intraocular Lens (IOL) is a specialized medical device designed for patients undergoing cataract surgery who also require correction for pre-existing corneal astigmatism. This lens is crafted from glistening-free hydrophobic acrylic, ensuring long-term clarity and optimal visual outcomes.

Advanced Optic Design

• Biconvex Structure: Features a square, thin, and textured edge for enhanced performance.
• Aspheric Surface: The anterior surface partially compensates for corneal spherical aberration, improving image quality and increasing tolerance to optical imperfections.
• Toric Surface: The posterior surface is tailored for precise astigmatism correction.

Material and Light Filtering

• UV and Blue Light Filters: Integrated within the lens material to protect the eye from harmful light exposure.

Haptic Design for Stability

• C-Loop Design: Provides secure positioning within the eye.
• Textured Surface: Enhances rotational stability, crucial for maintaining consistent astigmatism correction.

Dimensions and Power

• Optic Diameter: 6.00 mm
• Overall Length: 13.00 mm
• Spherical Power Range: +10.00 to +30.00 diopters in 0.50 D increments.
• Cylinder Power Range: 1.00 to 6.00 D, with specific increments for precise correction.

Rotational Stability

• Exceptional Performance: Median rotation of 1.1° with 100% of lenses showing ≤5° rotation up to six months post-surgery.

Surface Treatment

• Active Oxygen Processing: Applied to the posterior surface to maintain a smooth optic surface.
• Square Edge Design: Reduces the risk of posterior capsule opacification (PCO).

Clinical Outcomes

• Lower PCO Scores: Demonstrates significantly lower PCO scores compared to other IOLs over a three-year period.
• Reduced Nd:YAG Capsulotomy Rates: Indicating lower intervention needs post-surgery.

Injector System

• Preloaded Options: Includes multiSert™ or Vivinex™ iSert® systems for versatile injection methods.
• Incision Size: Recommended at 2.20 mm for optimal insertion.

Biometric Constants

• Nominal A-Constant: 118.9
• Optimized Constants: Provided for various biometric formulas to aid in surgical planning.

Indications

This lens is intended for use by healthcare professionals during cataract surgery, offering reliable correction for patients with corneal astigmatism. Its design ensures high rotational stability and reduced PCO, contributing to superior long-term visual outcomes.