Use of the ocular sealant—including application, sealed incision, and the wound challenge of no leaks—prevents fluid egress significantly better than sutures, in the experience of Stephen S. Lane, MD, while maintaining patient comfort and surgeon efficiency. The sealant is a synthetic, polyethylene glycol hydrogel that is about 90% water after polymerization. The hydrogel molds around the irregularities of the de-epithelialized tissues and adheres via "lock and key," rather than binding chemically to the ocular surface. (Images courtesy of Stephen S. Lane, MD)