A subretinal injection device having an injection syringe with a needle adapted for injection behind the retina of an eye. The syringe includes a barrel defining a chamber, an injection needle fluidly connected to the chamber, and a plunger having an inner end and an outer end. The internal end forms an end to the chamber in the syringe. An air pump is fluidly connected to the outer end of the plunger so that air pressure controls the actuation of the syringe.