Although choked disk may possibly occur as a part of locomotor ataxia, it is exceedingly rare, and when present is nearly always due to syphilitic lesions. Bernhardt (Berliner klin. Woch., July 15, '95).
Case of tabes .which colored vision in both eyes came on suddenly, and has lasted ever since. Everything appears a, bright emerald-green color, as if a green veil were before his eyes; everything seems to be on the other side of this veil, which is stationary, and objects move behind it. Sometimes the veil appears continuous in structure, like colored glass, at other times as if made up of minute particles shimmering independ ently of one another. H. Work Dodd (Treatment, Apr. 27, '99).
Laerymation an earlier symptom of ataxia. The explanation afforded of the condition is that, owing to imperfect ac tion of the orbicularis, the lower lid, and with it the lower punctum, is not kept in proper approximation to the globe, and the tears are thus apt to over flow upon the cheek. Or it may be the expression of a reflex excitability of the facial secretory- apparatus, analogous to the hyperhidrosis which is occasionally seen. Mendel (Med. Record, Sept. 9, '99).
Ail forms of common sensation be come impaired in varying degrees and different localities. The pains lessen or
disappear and an analgesia develops, which may be absolute, but is more often partial and frequently ataxic. The pa tient, for example, if pricked on the left leg, may refer the painful sensation to the right (allochiria) or to both legs. This phenomenon is sometimes true, also, of tactile and temperature- percep tion. Pain-conduction may be retarded or delayed. Several seconds may vene between the actual pin-prick and the patient's conscious appreciation of it. Careful examination of sixty tabetic patients, with special regard to the turbances of sensibility. In all of the eases except five, which were lytic throughout, hyperresthesia of the trunk was a constant and early condi tion. At the boundarieA of the hyperass thesia and between the lymphatic zones there is generally a pronounced hyper algesia, particularly a S regards Md. Sensory-irritation phenomena aro fre quent, but not constant. Marked anal fzesia of the ulnar nerve appears. as a rule. to accompany other disturbances in the ulnar region. Alax (Archly f. Psych. u. Nervenh., B. 27, '95).
[It should be here mentioned that the ulnar symptom is also frequently met with in dementia paralytic:1, and is there fore not characteristic of tabes.