Windage from a shell; fear; fall, unconscious: Homonymous hemianopsia (organic? functional?) with blinking and vasomotor excitability.
Case 312. (Steiner, October, 1915.)
A volunteer, 19 (never ill; no nervous disease in the family) after a period of training went into the field October 3, 1914. November 5 a shell struck near his trench, but failed to explode. Up to that time everything had been quiet. The soldier had been looking out of the loop-hole, surveying the landscape. He felt a great fear, felt a blow in the neck, and fell down unconscious. How long he was unconscious is unknown. Sometime later he walked back with his comrades.
About an hour later, this volunteer—who was a very intelligent young man, possessing some knowledge of biology, including the nature of visual fields—noticed a black spot in the field of vision, which came and went, but after a few hours remained continually without disappearing. Otherwise there was no complaint except a feeling of dizziness when stooping.
Upon examination there could be found no disorder of the internal organs. Neurologically there was blinking, vasomotor excitability, slight reddening of the face, and dermatographia. An expert in ophthalmology confirmed the existence of a homonymous defect in the fields of vision. This defect could not be influenced by suggestion or by any other treatment, nor did any other change whatever occur in the condition.
Steiner inquires whether this hemianopsia is to be taken as organic or functional. The air-pressure of the shell hissing past might have produced a concussion, or the falling unconscious might have produced a commotio cerebri or a slight hemorrhage. The tic-like blinking and vasomotor excitability, however, suggest functionality.
Shell-shock PSORIASIS. Post-traumatic eczema.