The Baerveldt tube aims to reduce the pressure inside the eye and therefore prevent or slow down further damage to the optic nerve. It will not cure your glaucoma, reverse any damage already caused by glaucoma, or bring back any lost vision. An aqueous shunt may be an appropriate course of action for patients for whom drop treatment has been ineffective or is unsuitable, or a previous surgery has not succeeded in controlling intraocular pressure. It may also be recommended as the first course of action in your glaucoma treatment. Ultimately it is a decision to be reached after discussing your condition and its progression with us.