---
title: What is Hydrus Microstent?
description: "The Hydrus Microstent is a flexible, crescent-shaped glaucoma implant that helps fluid drain through the eye's natural pathway. ## How Hydrus works Placed in Schlemm's canal via the drainage angle, the device scaffolds and widens a segment of the canal.…"
url: "https://bluefinvision.com/knowledge-base/topics/treatments-procedures/what-is-hydrus-microstent/"
updated: "2025-12-31"
category: "Treatments & Procedures"
---

# What is Hydrus Microstent?

The Hydrus Microstent is a flexible, crescent-shaped glaucoma implant that helps fluid drain through the eye's natural pathway.

## How Hydrus works

Placed in Schlemm's canal via the drainage angle, the device scaffolds and widens a segment of the canal. This improves outflow from the anterior chamber in open-angle glaucoma.

- Inserted through a small incision, often combined with cataract surgery
- Bypasses part of the trabecular meshwork to reduce resistance
- Suitable mainly for mild to moderate open-angle glaucoma
- Not visible externally once implanted

## Advantages and considerations

Hydrus can provide greater pressure reduction than some single-stent options. It is still less invasive than traditional filtering surgery.

- May decrease reliance on daily glaucoma drops
- Regular follow-up remains essential to track pressure and optic nerve health
- Less effective for very advanced or angle-closure glaucoma
- Decision to use Hydrus is tailored to target pressure and patient factors