Glaucoma treatment devices are disclosed. In various example, the glaucoma treatment devices include a body and a fluid conduit that are configured to help facilitate evacuation of fluid from a fluid-filled body cavity, and reabsorption of the evacuated aqueous humor by the body through tissue surrounding the glaucoma treatment device. In some examples, the glaucoma treatment device is configured such that a flow resistance through the fluid conduit can be modified post-operatively one or more times.
