In certain embodiments, an ophthalmic diagnostic system (100) includes a laser source (140), a galvanometer (130), and a system inverting controller, SIC (120), coupled to the galvanometer (130). The galvanometer (130) includes one or more optical elements (134, 136, 138, 139A, 139B, 139C) and one or more galvanometer controllers (132) configured to manipulate an orientation of the one or more optical elements (134, 136, 138, 139A, 139B, 139C) to scan the output of the laser source (140) across an ophthalmic target (150) based on galvanometer control signals. The system inverting controller, SIC (120), is configured to modify input galvanometer control signals based on an estimated transfer function of the galvanometer and provide the modified galvanometer control signals to the galvanometer.
