Abstract: A method of staining an ocular structure, the structure being a human or other mammalian eye or portion thereof, the method comprising staining the ocular structure with either indigotindisulfonate, Patent Blue V, Sulphan Blue, tolonium chloride, or Evans Blue. Ocular structures of particular interest are the anterior lens capsule and the vitreo-retinal interface.

Abstract: A spray or delivery device is arranged to dispense a dye into the anterior chamber of a human eye or other mammalian eye for the purpose of staining a specific ocular structure or tissue. An ocular structure of particular interest is the anterior lens capsule. The spray device includes a cannula having a distal end arranged for insertion into the anterior chamber of the eye. The cannula preferably has a dispensing orifice located at a side of the cannula offset from the distal end. The orifice preferably dispenses the fluid dye or stain in spray form. In one exemplary embodiment, the cannula has a fin extending radially outward from the cannula. In another exemplary embodiment, the cannula has a flared sleeve surrounding and extending from the orifice. In a method for conducting intra-ocular surgery, said delivery device would dispense a dye in a particular fashion so as to control its application to the intended target tissue, thereby limiting delivery of the dye to undesired surrounding tissue structures.