An optical device for patients with downgaze problems shown in a patient suffering from Steele-Richardson-Olszewski syndrome

Abstract

Progressive supranuclear palsy (PSP) or Steele-Richardson-Olszewski syndrome is a degenerative disorder which includes vertical gaze paralysis, nuchal dystonia, parkinsonism, and dementia. Consequently, since patients suffering from this disorder tend to fall, sedentary occupations and interests predominate. Because of the relatively early appearing gaze palsy, patients are unable to read or to eat on their own. Personal dependence increases and the quality of life decreases. In this report, a patient suffering from PSP in an initial stage with an impairment of vertical ocular pursuit movements and consequent difficulties in reading and eating is described. With the help of a new device, where refraction and movable prism glasses in front of the eyes are integrated, the patient could be rehabilitated. Patients suffering from vertical ophthalmoplegia of other causes can also take advantage of this new optical device.