Figure 5:

Eye penetration experiments. a) The holder structure used to stabilize the eye, mount the needle inside the coil system. b) The 25G needle being used with the impact force mechanism. c) The experimental snapshots of the penetration video provided in the Supplementary Video 2. The MPACT-Needle is able to puncture the eye in less than 30.1 seconds. d) Images of the rabbit eye before penetration and after penetration by the MPACT-Needle. Due to the puncturing deep in the eye, a passage from the cornea to the deeper tissue layers is opened. This passage allows for a fluid exchange and delivering fluid drugs. We observe the leakage of the fluid from the inside of the eye towards the inside of the tube that holds the needle. A closer look reveals the location of penetration on the surface of the cornea.