Patent ID: 8099162

Claim:
An ocular iontophoresis device for delivering active substances to an eyeball, the ocular iontophoresis device comprising: an active electrode; a reservoir having a frustoconical shaped outer wall and a hollow body at least partly delimited by the outer wall, the reservoir having an inlet and an outlet, the inlet and the outlet each having a respective diameter, wherein the diameter of the inlet is greater than the diameter of the outlet; wherein the outlet defines an application surface adapted to receive a predetermined part of an eyeball surface, wherein an area of the active electrode (“Se”) is greater than an area of the application surface (“Sa”) to provide an increased electric field intensity by a value proportionate to the ratio “Se/Sa”, the application surface being at least partly limited by an outer line concave towards the optical axis of the eyeball, wherein the outer wall extends from the outer line outwardly toward the inlet with respect to the optical axis, and wherein the portion of the outer wall delimiting the hollow body has an inclination angle substantially away from the optical axis.