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January 1965

Alexia Without Agraphia, and the Splenium

Arch Ophthalmol. 1965;73(1):2-3. doi:10.1001/archopht.1965.00970030004002

Although not new, a neuro-ophthalmic syndrome that has received only limited recognition is that in which a patient loses his capacity to read while retaining that to write. At first glance this seems contrary to our information that the center for word recognition is discretely represented in the angular gyrus of the dominant cerebral hemisphere, for, if this were the case, one would expect reading and writing to be invariably impaired together.

Retention of writing ability with loss of that for reading was described by Dejerine as long ago as 18921 and recently called to our attention by Geschwind.2 These authors, and others, reported the curious circumstance that patients may be able to write with facility and clarity and yet be unable to read what they have written. All these patients have had strokes with right homonymous hemianopia although not necessarily other neurologic signs. A few, including Dejerine's