A review of the voluminous literature on the subject of the eye symptoms in tabes will impress one with the overwhelming importance of a careful and thorough inspection of the extrinsic muscles, the pupils and accommodation, and the optic nerve in the diagnosis of that disease. And this is particularly true in its earliest stages. A well marked case in its second or third stage presents no difficulties. The symptoms are of such a pronounced and individual character and so frequently found in association that "he who runs may read." But in that variable and usually extended period before the spinal sclerosis has developed its distinctive features of altered locomotion, incoördination, perverted and increased sensibility and paralysis, when a diagnosis is of greater value to the patient, an investigation of the ocular apparatus will not infrequently furnish reliable data from which positive deductions concerning the distant future can be drawn.
HANSELL HF. THE POSSIBILITY OF THE EARLY DIAGNOSIS OF LOCOMOTOR ATAXIA BY THE EYE-SYMPTOMS.Read before the Philadelphia Neurological Society, Jan. 23,1893. JAMA. 1893;XX(7):167–170. doi:10.1001/jama.1893.02420340001001
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