Asensio-Sánchez V M, Torreblanca-Agüera B, Martínez-Calvo S, Calvo M J, Rodríguez R
Hospital General, Medina del Campo, Valladolid, Spain.
Arch Soc Esp Oftalmol. 2006 Mar;81(3):169-71. doi: 10.4321/s0365-66912006000300010.
We report a 59-year-old patient with difficulty in visual perception, difficulty reading and episodes of dyschromatopsia. The ocular examination was unremarkable. Structural neuro-imaging and neuro-ophthalmology tests were normal. Positron emission tomography scanning showed decreased metabolism in the parieto-occipital cortex bilaterally. Several months later the patient developed Alzheimer's disease.
Visual symptoms may be the first manifestation of Alzheimer's disease.
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