A device, system and method for treating retinal detachment is presented. The device is generally comprised of a depressor, a cannula and a needle. In use, the depressor is used to create an indentation on the surface of the eye that can be viewed internally to determine the site for drainage. A cannula advancement mechanism is engaged and the cannula containing the needle is inserted into the determined drainage site. The needle is removed and an aspiration device is connected to the cannula to drain the subretinal fluid to treat retinal detachment.
