• Neurologic evaluation of a child with a severe headache revealed a bilateral inability to move the eyes above the horizontal plane. Computed tomographic and magnetic resonance scans of the brain obtained for a suspected midbrain lesion were normal. Photographs from early childhood confirmed that the deficit was congenital.
Tychsen L, Imes RK, Hoyt WF. Bilateral Congenital Restriction of Upward Eye Movement. Arch Neurol. 1986;43(1):95–96. doi:10.1001/archneur.1986.00520010089031
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