Description

The HOYA TORIC IOL, specifically the Vivinex™ Toric models XY1A and XY1A-SP, represents a sophisticated solution for astigmatism correction in cataract surgery. Crafted from glistening-free hydrophobic acrylic, this intraocular lens (IOL) integrates both UV and blue light filters, ensuring enhanced visual protection.

Optic Design

• Biconvex Optic: Features an anterior aspheric surface to partially compensate for corneal spherical aberration, improving tolerance to coma.
• Toric Surface: The posterior toric surface aids in precise astigmatism correction.
• Edge Design: A square, thin, and textured optic edge with axis orientation marks facilitates accurate alignment and reduces posterior capsule opacification (PCO).

Haptic Design

The textured-rough haptic surface is engineered for enhanced rotational stability, crucial for maintaining the lens's position post-surgery. This design contributes to the lens's remarkable stability, with median rotation at just 1.1° and over 96% of lenses rotating ≤5° post-implantation.

Dimensions and Power Range

• Optic Diameter: 6.00 mm
• Overall Length: 13.00 mm
• Spherical Power: Ranges from +10.00 to +30.00 D in 0.50 D increments.
• Cylinder Power: At the IOL plane, ranges from 1.00 to 6.00 D, with precise increments for tailored correction.

Optical Constants

Optimized for various calculation formulas, the lens includes constants such as:

• Nominal A-constant: 118.9
• Haigis, Hoffer Q, Holladay 1, and SRK/T: Specific constants for precise surgical planning.

Injector System

The preloaded multiSert™ or Vivinex™ iSert® system offers versatility with a front injector tip outer diameter of 1.70 mm, suitable for a recommended incision size of 2.20 mm. The system allows for both single-handed push and two-handed screw injection options, enhancing surgical precision.

Clinical Performance

The HOYA TORIC IOL demonstrates exceptional clarity and reduced PCO formation, supported by both laboratory and clinical data. Its glistening-free material and robust rotational stability contribute to lower Nd:YAG capsulotomy rates compared to other IOLs.

Intended Use

Designed for healthcare professionals, this lens is intended for patients undergoing cataract surgery with a need for astigmatism correction. The precise cylinder power calculation, supported by the HOYA Toric Calculator and the Abulafia-Koch Regression formula, ensures accurate outcomes.

This advanced lens technology promises long-term clarity and stability, making it a valuable asset in achieving optimal visual results for patients.