Description

The HOYA iSert 251 Monofocal Preloaded Intraocular Lens (IOL) is a sophisticated solution designed for enhancing visual outcomes in cataract surgery. Crafted by HOYA, this lens is engineered with precision to provide clear, sharp vision post-surgery.

Key Features

• Aspheric Monofocal Design: The lens features an aspheric, aberration-correcting optic design known as the Aspheric Balanced Curve (ABC). This design aims to enhance visual sharpness and reduce spherical aberration, offering patients improved clarity.

• Material Composition: Made from hydrophobic acrylic (AF-1), the lens includes integrated UV and blue light filters. This composition helps protect the eye while ensuring long-term stability and performance.

• Edge and Haptic Design: The lens has a sharp, square optic edge to minimize posterior capsule opacification (PCO). Its modified C-loop haptic design with 5° angulation ensures stable positioning within the eye.

Dimensions and Power Range

• Optic Diameter: 6.0 mm
• Overall Length: 12.5 mm
• Power Range: Available from +6.00 to +30.00 diopters (D) in 0.50 D increments, allowing for tailored vision correction.

Injector System

Preloaded in the iSert injector system, the lens allows for controlled delivery through a microincision. This system is compatible with incision sizes ranging from 2.2 to 2.75 mm, enhancing surgical precision and minimizing impact.

Handling and Use

The lens is designed for ease of use, with step-by-step handling instructions provided. It is recommended to use an ophthalmic viscoelastic device (OVD) during injection, which should occur within 3 minutes after lens preparation. The design aims to minimize friction, incision size, and surgically induced astigmatism, while self-centralizing in the capsular bag.

Regulatory Status

The HOYA iSert 251 is both FDA approved and CE marked, with a proven track record of over 10 million units implanted worldwide. Its manufacturing process includes lathe-cut and pad-polished techniques, ensuring high-quality standards.

Safety and Improvements

Notably, there was a precautionary recall for units manufactured between October 2011 and January 2013 due to trace metallic particulates. Since then, manufacturing improvements have been implemented, with no new cases of inflammation reported for lenses implanted for 6 months or longer.

Purpose and Benefits

Designed to replace the eye’s natural lens during cataract surgery, the HOYA iSert 251 aims to provide sharp, stable, and predictable visual outcomes. Its preloaded system enhances surgical efficiency and reduces the risk of contamination, making it a reliable choice for ophthalmic professionals.