Insert the DALK Cannula attached to a 5mm air-filled syringe into the opening created by the needle (Fig. 3). The cannula should be parallel to the stromal surface, bevel down, and tunnel towards the mid-central cornea. The cannula tip should approach the corneal apex, and about 3-4mm of the needle shaft should be within the corneal stroma.
by Donald Tan on 24 Jun 2014