Description
The HOYA TORIC IOL family, including models such as Vivinex™ Toric XY1A-SP, XY1A, and NS60YT, offers advanced intraocular lenses specifically designed for patients undergoing cataract surgery with astigmatism. These lenses are crafted from glistening-free hydrophobic acrylic material, ensuring clarity and durability. The integrated UV and blue light filters provide additional protection for the eye.
Key Features
- Optic Design: The lenses feature a biconvex optic with an aspheric anterior surface and a toric posterior surface. This proprietary design helps compensate for corneal spherical aberration, enhancing visual quality.
- Haptic Design: The textured haptic surface and anchor wing-haptics in the NS60YT model ensure excellent rotational stability, crucial for maintaining lens alignment.
- Surface Treatment: Active oxygen processing creates a smooth surface and a square optic edge, significantly reducing posterior capsule opacification (PCO).
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 (Toric) Power: Ranges from 1.00 to 6.00 D at the IOL plane, offering precise astigmatism correction.
Performance
Clinical studies highlight the lens's exceptional rotational stability, with median rotation at just 1.1° and over 96% of lenses maintaining alignment within 5° post-implantation. The design effectively minimizes PCO, leading to lower Nd:YAG capsulotomy rates compared to other intraocular lenses.
Injector System
The preloaded multiSert™ or Vivinex™ iSert® injector system facilitates a smooth implantation process, compatible with a recommended incision size of 2.20 mm. This system allows for flexible injection methods, accommodating surgical preferences.
Calculation Constants
Optimized for various formulas, the lens provides precise alignment and power calculation, supported by the HOYA Toric Calculator. This tool aids in estimating posterior corneal astigmatism, ensuring accurate surgical outcomes.
Clinical Outcomes
The HOYA TORIC IOL demonstrates stable and effective astigmatism correction, with positive visual outcomes extending up to 12 months postoperatively. Clinical evaluations report no vision-threatening complications, underscoring the lens's reliability and performance.
Intended Use
These lenses are intended for implantation during cataract surgery in patients requiring astigmatism correction, offering a sophisticated solution for enhanced visual clarity and stability.