“…Such instruments are already in use in a number of clinical procedures, such as surgery of the lacrimal pathways [29, 30, 31], cyclophotocoagulation [27, 32], retinal photocoagulation [28, 32]and photoablation in the chamber angle [33, 34, 35, 36, 37, 38], and the exploration of the meninges of the optic nerve [39]. An extensive survey of the various clinical applications of endoscopy has been presented by Leon and Leon and co-workers [23, 40, 41, 42, 43, 44, 45, 46]and others [47, 48, 49, 50, 51, 52, 53, 54, 55]. Figure 15 shows endoscope-based inspection of the CB.…”