13 research outputs found
Comparison of Horizontal, Vertical and Diagonal Smooth Pursuit Eye Movements in Normal Human Subjects
AbstractWe compared horizontal and vertical smooth pursuit eye movements in five healthy human subjects. When maintenance of pursuit was tested using predictable waveforms (sinusoidal or triangular target motion), the gain of horizontal pursuit was greater, in all subjects, than that of vertical pursuit; this was also the case for the horizontal and vertical components of diagonal and circular tracking. When initiation of pursuit was tested, four subjects tended to show larger eye accelerations for vertical as opposed to horizontal pursuit; this trend became a consistent finding during diagonal tracking. These findings support the view that different mechanisms govern the onset of smooth pursuit, and its subsequent maintenance when the target moves in a predictable waveform. Since the properties of these two aspects of pursuit differ for horizontal and vertical movements, our findings also point to separate control of horizontal and vertical pursuit. Copyright © 1996 Elsevier Science Ltd
Meningismus, Ocular Pain and Visual Loss in a Young Male
Periorbital pain; Headache; Meningismus; Photophobia; Blurred visionA 20-year old male with headache, stiff neck, photophobia and blurred vision.VA: 20/800 OD, 20/400 OSMRIProliferative pigmented cells, pleomorphism with mitotic figures.Surgery; Corticosteroids; XRTAttache
Blurred Vision in a 54-Year-Old Woman: Maladie de la Maison
Blurred vision; Focal deficitA 54-year old female with an inability to focus. 6 months prior to presentation she developed blurred vision. No abnormality noted save for frequent blinking.VA: Best-corrected, 20/25 OUMRIOculofacio-skeletal myorhythmiaAnti-bacterial agents; AnticonvulsantsAttache
Static External Ophthalmoplegia Linked to Chromosome 17p12-P13.1: A New Autosomal Recessive Disorder
Static external ophthalmoplegia (SEO) is a heterogenous group of disorders marked by congenital, nonprogressive, abnormal ocular motility with or without ptosis. SEO includes both neurogenic and myopathic conditions