Abstract
The ophthalmologic manifestations of diseases of the nervous system have long occupied a conspicuous place, and have been studied with great interest by the neurologist and the ophthalmologist. Realizing the close relation existing between the eye and the brain, the retina being an outgrowth from the rudimentary brain of the primary optic vesicle, and the optic nerves being portions of the lobes of the brain, 1 and admitting that these anatomic and embryologic facts are true, one readily realizes how the early manifestations of diseases of the brain may reveal themselves through the medium of the eye, which is the principal means we have of noting the changes resulting from disease of this organ. On examining the eye, we are able, in many cases, to see these changes in their incipiency, and thus make an intelligent diagnosis of the workings of this great machine (consisting of 600 million cells) before
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More From: JAMA: The Journal of the American Medical Association
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