The Types segment classifies implants according to device architecture and flow‑control mechanism. Valved implants such as the Ahmed Glaucoma Valve incorporate a pressure‑sensitive diaphragm that limits early postoperative hypotony; their higher manufacturing cost and extensive clinical data position them in the premium tier, accounting for roughly one‑quarter of market value despite a moderate case volume. Non‑valved tube shunts (e.g., Baerveldt, Molteno) rely on a fixed‑diameter tube and external ligature to modulate flow, offering lower complication rates in long‑term follow‑up; they capture the largest share of the market, driven by broad surgeon adoption and competitive pricing. Micro‑stent implants—including the iStent and Hydrus—represent a minimally invasive sub‑category designed for early‑stage disease; although unit prices are lower, rapid uptake in developed regions has propelled this segment toward double‑digit growth rates, contributing an emerging yet increasingly significant portion of total revenue. By dissecting the market taxonomy along these device‑type lines, analysts can trace pricing dynamics, adoption curves, and future growth vectors across the Glaucoma Implant segmentation landscape.