Injuries of nerves and their consequences - Reflex Sympathetic ...

LESIONS OF SPECIAL NERVES. 337
of the ethmoid hone. The nerve was pushed upward,
but suffered no other injury. In its path the ball cut
the third, fourth, sixth, and ophthalmic branch of the
fifth
About half an ounce of blood was effused,
nerve where they pass across the wall of the cavernous
sinus.
and found its
way upward and forward so as to compress
the olfactory bulb at its narrower central portion, which
at the time of the post-mortem inspection was completely
softened.
When I saw the lad
he was slightly drowsy, but could
be very easily aroused, and answered all our questions
with intelligence and promptness.
The right eyeball was absolutely motionless, although
the other moved readily. In the absence of better
means, I placed an edge of paper across the eyelids in
various directions so as to mark the edge of the cornea
;
but despite his utmost eflbrts, there was no measurable
movement in any direction.
The iris was largely but not completely dilated.
I passed a light close to the eye, he was annoyed at
glare, but the pupil
When
the
rested motionless, as was equally the
case when the eye was alternately covered and uncovered.
When directed to regard a near object, tlie left pupil contracted,
the right iris remained motionless.
A little extract of Calabar bean was now placed on the
eye, and in about fifteen or twenty minutes the iris had
so contracted that the pupil was scarcely larger than a
pin's head. About an hour later atropia was put upon
the eye, and within an hour the pupil dilated again, so that
eight hours after it was larger than before.
The eye was absolutely dry, there being no lachrymal
secretion, and the ball was so completely insensible to
touch that a finger rubbed on the cornea caused no annoyance.
There were also anaesthesia and analgesia in the
supra-orbital region and the lid.
I endeavored to measure