Device for injecting into an eyeball a sterile liquid selected from amongst perfluorocarbons, comprising a tubular container body (3) having a first dispensing end (5) and a second end (6), and an adapter (4) for connecting a thrust fluid feed tube (6) to the second end (6). A first stopper (17) is inserted into the container body (3) in a sealed fashion and sterile liquid (2) is fed between the first stopper (17) and the first end (5). The adapter (4) consists of first and second connecting means (21), (22) to attach the adapter (4) to a feed tube (20) and to the second end (6), as well as first and second seal means (23), (24) to guarantee the fluid seal between the adapter (4) and the feed tube (20) and the container body (3). A duct (25) for the passage of a thrust fluid extends through the adapter (4) from the feed tube (20) to the container body (3).
