Fig. 26. Glaucomatous disc. The excavation inferiorly may be difficult to recognize without a good stereoscopic view with a slit beam and biomicroscopy. The thinning superiorly is subtle. The inferior temporal surface is expected to have a sloped surface in a tilted disc with a temporal crescent, and glaucomatous excavation in this region requires close inspection, as well as experience and judgment. Especially by indirect ophthalmoscopy it may appear to have a good pink color, and the presence of excavation in the sloped region may easily go unrecognized.