The Hydrus Microstent is a revolutionary canal-based minimally invasive glaucoma surgery (MIGS) device for adult patients with mild to moderate primary open-angle glaucoma undergoing cataract surgery. The device is highly flexible, biocompatible 8 mm long Microstent, made out of an alloy called nitinol and is delivered ab interno into the trabecular meshwork and Schlemm’s canal. Known for its flexibility and “shape memory”, nitinol is commonly used in medical devices and implanted in different areas of the body, including blood vessels and bones.
The Hydrus Microstent helps to reduce eye pressure in three ways.
1. Enhancing outflow
Hydrus Microstent is placed in Schlemm’s canal, a part of the drainage system of the eye. Fluid then flows through the Hydrus Microstent and into the eye’s natural outflow channel to reduce eye pressure.
2. Expanding the eye’s natural fluid pathway
Hydrus Microstent delicately expands the natural width of Schlemm’s canal, allowing for enhanced flow through the eye’s drainage system.
3. Reducing pressure reliably
Hydrus Microstent spans a full 90° within the eye. This coverage ensures that fluid reaches the eye’s drainage system, which carries fluid from Schlemm’s canal to the body’s circulatory system and allows pressure in the eye to be lowered reliably.
Using a gonioprism, the Hydrus Microstent is inserted through a clear corneal incision and guided through the trabecular meshwork into Schlemm’s canal.
Once in position, the Hydrus Microstent is advanced until the device has scaffolded 90° of the canal, ensuring consistent access to collector channels.