For Ophthalmologists

A new approach to ophthalmic brachytherapy

The LV Y-90 Disc and iWand® applicator system is designed to deliver episcleral beta radiation for the treatment of ocular tumors and benign growths. The system is FDA 510(k) cleared and offers a single-session, outpatient-capable approach to ophthalmic brachytherapy.

Unlike traditional multi-day plaque brachytherapy — which typically requires seed ordering from multiple vendors, manual plaque assembly, surgical suturing of the plaque to the sclera, multi-day hospitalization with radiation isolation, and a second surgery to remove the plaque — the LV Y-90 system is designed as an integrated, single-use device. The hand-held iWand applicator holds the Y-90 Disc and is applied to the treatment site for a calculated duration, typically measured in minutes.

Conditions where physicians have used Y-90 brachytherapy

The LV Y-90 Disc is FDA 510(k) cleared for episcleral brachytherapy of ocular tumors and benign growths. Physicians at multiple institutions have reported their experience using the LV Y-90 system in peer-reviewed publications for the following conditions:

Some publications referenced above were authored or co-authored by individuals affiliated with Liberty Vision Corporation. Full citations with disclosures of affiliation are available on our Publications page.

How the system works

The LV Y-90 system consists of two components: the LV Y-90 Disc sealed brachytherapy source and the iWand® hand-held applicator. The Y-90 Disc is a high-purity yttrium-90 beta radiation source available in 6mm and 10mm diameters. Activity is configurable for each order. The Y-90 half-life is 64 hours, enabling straightforward disposal.

Two applicator types are available:

• The iWand® A is designed for anterior segment applications. The applicator features a transparent polymer shield that is designed to block beta radiation side-scatter while allowing the physician to view the treatment site during application.
• The iWand® P is designed for posterior segment applications. The applicator features four guiding lights surrounding the Y-90 Disc that are visible ophthalmoscopically, enabling the physician to confirm disc positioning during treatment.

Both applicators are single-use, pre-sterilized, and weigh less than 8 grams. The iWand is designed for hand-held episcleral application — no sutures are required to hold the applicator in position during treatment.

Referring a patient

If your patient presents with an ocular tumor or benign growth that may be a candidate for brachytherapy, contact Liberty Vision for information about treatment centers using the LV Y-90 system.