Description
The HOYA iSert 251 Monofocal Preloaded Intraocular Lens (IOL) is expertly designed for use in cataract surgery, offering a reliable replacement for the eye’s natural lens. This advanced lens features a monofocal, aspheric design with aberration-correcting optics, enhancing visual clarity and precision.
Key Features
- Material Composition: Constructed from hydrophobic acrylic, the lens includes chemically bonded blue PMMA haptic tips, ensuring durability and performance.
- Optical Enhancements: Integrated UV and blue light filters, along with the Aspheric Balanced Curve (ABC) design, provide superior visual sharpness and protection.
- Edge Design: The sharp, square optic edge is engineered to reduce posterior capsule opacification (PCO), maintaining long-term clarity.
Dimensions and Power
- Optic Diameter: 6.0 mm
- Overall Length: 12.5 mm
- Power Range: Available from +6.00 to +30.00 diopters in 0.50 D increments, accommodating a wide range of visual needs.
Haptic Design
The modified C-loop configuration with a 5° angulation ensures stable positioning within the eye, promoting optimal alignment and performance.
Injector System
Preloaded in a single-use iSert injector, the lens offers a controlled and predictable delivery. The dry system with a plastic injector tip and screw-type plunger mechanism is compatible with microincision cataract surgery (MICS), recommended for incision sizes between 2.2–2.75 mm. This design minimizes friction and surgically induced astigmatism while ensuring smooth passage and unfolding.
Handling Instructions
Proper use of an ophthalmic viscoelastic device (OVD) is essential, with specific stepwise instructions for lens injection. The process requires no excessive force, and correct positioning of both leading and trailing haptics is crucial. Users are advised not to rotate the screw plunger in reverse and to ensure correct alignment before proceeding.
Regulatory Compliance and Track Record
The HOYA iSert 251 is both FDA approved and CE marked, with over 10 million units successfully implanted worldwide. Manufacturing improvements have been implemented following a past recall, ensuring the highest quality standards.
Benefits
This IOL is designed for simplicity, speed, and predictability, reducing handling and misloading errors. It minimizes contamination risks and mechanical stress, with no need for postoperative cleaning or sterilization, enhancing efficiency in the operating room.
