Methods of treating or suppressing mitochondrial diseases, such as Friedreich’s ataxia, Leber’s Hereditary Optic Neuropathy, mitochondrial myopathy, encephalopathy, lactacidosis, stroke, or Kearns-Sayre Syndrome are disclosed, as well as compounds useful in the methods of the invention. The binocular device comprises a first monocular device, for providing one eye with a first asymmetric field-of-view, and a second monocular device for providing another eye with a second asymmetric field-of-view, where the first and second asymmetric field-of-views are mutually complementary to a combined field-of-view, wider than each individual asymmetric field-of-view. The increased torque density achieved by this high torque active mechanism allows to minimize the size of the actuating system, i. Data sets may be obtained with the use of bite registers. The rate of coherency is increased by applying preliminary preprocessing steps.