Systems, apparatuses, and methods of and for an ophthalmic surgical system are disclosed. An ophthalmic surgical system may include a vitrectomy probe having a housing sized and shaped for grasping by a user. The vitrectomy probe may also include a cutter extending from the housing and being sized to penetrate and treat a patient eye. The cutter may include an outer cutting tube coupled to the housing. The outer cutting tube may have an outer port formed therein that is sized and shaped to receive tissue. The cutter may include a rotatable inner cutting member disposed within the outer cutting tube. The inner cutting member may include a first cutting surface that rotates across the outer port to cut the tissue when the inner cutting member is rotated. The vitrectomy probe may include a pneumatic vane actuator positioned within the housing and configured to rotate the inner cutting member.
