The present invention relates to a shunt adapted to facilitate the passage of aqueous humor from the anterior chamber to Schlemm's canal, comprising: a body of biocompatible material having a size and shape adapted to be at least partially circumferentially received within a portion of Schlemm's canal to divert aqueous humor from the anterior chamber of the human eye to and within Schlemm's canal; the body comprising a distal portion and a proximal portion; wherein the body defines a trough-like channel that is at least partially open for directing aqueous humor; and wherein the body is adapted, when in use, to facilitate the passage of aqueous humor from the anterior chamber into Schlemm's canal without the proximal portion extending into the anterior chamber.