• The SPECTRALIS® Glaucoma Module Premium Edition combines a proprietary technology called Anatomic Positioning System with a series of unique scan patterns to assess the optic nerve head, the retinal nerve fiber layer, and the ganglion cell layer. These scan patterns are precisely matched to the characteristics of fine structures relevant in glaucoma diagnostics. The glaucoma module compares patient's eyes to a reference database of healthy eyes, and flags even very small deviations. The precision of the SPECTRALIS® AutoRescan function allows confident identification and monitoring of structural changes visit to visit.