Description
The HOYA TORIC IOL is a specialized intraocular lens designed to address pre-existing corneal astigmatism in patients undergoing cataract surgery. Manufactured by HOYA, these lenses are crafted from glistening-free hydrophobic acrylic material, ensuring long-term optical clarity. The lenses feature a UV and blue light filter, providing additional protection for the eye.
Optic and Haptic Design
- Optic Design: The lenses possess a biconvex shape with an aspheric anterior surface and a toric posterior surface. This design helps in compensating for corneal spherical aberration, enhancing visual outcomes.
- Haptic Design: The modified C-loop haptic design, with textured surfaces, contributes to the lens's high rotational stability, crucial for maintaining precise axis alignment post-implantation.
Dimensions and Power
- Optic Diameter: 6.00 mm
- Overall Length: 13.00 mm for most models, with some models like iSert Toric 351 at 12.5 mm
- Spherical Power Range: +6.00 D to +30.00 D
- Cylinder Power Range: 1.00 D to 6.00 D at the IOL plane
Injector System
The lenses come with a preloaded injector system, such as the multiSert™ system, allowing for a recommended incision size of 2.20 mm. This non-touch system facilitates safe and effective implantation.
Clinical Performance
Clinical studies highlight the lens's exceptional rotational stability, with over 96% of lenses rotating ≤5° post-implantation. The design also effectively reduces posterior capsule opacification (PCO), leading to lower Nd:YAG capsulotomy rates compared to other brands.
Visual Outcomes
Patients experience significant improvements in both uncorrected and corrected distance visual acuity, along with reduced refractive cylinder. The lens design minimizes higher-order aberrations and provides good contrast sensitivity, offering excellent vision across various distances, especially in trifocal models.
Additional Benefits
The HOYA TORIC IOL's glistening-free material ensures clear vision over time, and its precise axis placement can be enhanced with image-guided systems. The lens has shown no reported intraoperative or postoperative complications in cited studies, making it a reliable choice for achieving desired visual outcomes in cataract surgery.