Device can be implanted in the eye to treat glaucoma. Device described herein includes a body having a defining a lumen and first and second ends and an outer surface and an inner luminal surface. When the device is implanted in the sclera, a length sufficient to provide fluid communication between the anterior chamber and tear film of the eye through the lumen, the body has. By controlling the shape and size of the strategic choice and / or lumen of a particular constituent material, in some embodiments, the device is a filter-less construction. In some embodiments, it includes a filter. Glaucoma treatment device as provided herein, prevents bacterial invasion, is designed to provide the outflow resistance of the level required to achieve the desired intraocular pressure. Embed this device to the sclera of the eye with the disease, a method of treating glaucoma is also described.