( 930 ) 
The patient himself states that he is able to see well. Yet, if a key is held 
up before him, the left eye being closed, whilst the right eye is kept fixed on a 
definite point, the object is immediately recognized for what it is, in the left half 
of the field of vision, but not in the right half. In the same way, if the right eye 
is closed, a key is not recognized in the right half of the field of vision to the left. 
As there is therefore a presumption of he viopia the patient is examined by the 
ophthalmologist (Dr. Scamipr), who gives the following statement: 
Visus O. D. 6/9, Visus O. S. 6/5, for both eyes 6/g. 
A slight restriction of the field of vision for both eyes, but no hemiopia, not 
for moving objects and not for colours. The fundus presents no aberrations. 
This difference led to a more thorough examination, and to the making of 
different schemes of the fields of vision. The one repreduced here, was taken 
on April 20th 1909 by Dr. Scumpr, the exterior circle indicating the field of 
vision for movement, the one marked witi crossed lines that for blue, and the 
inner circle that for red. 
Date 20, 4. 1910. 
ERD: R.O 
4 " aie 
NN NN i My yy! 
WG Ig 
SMEREN ZZ 
Goy € 2 “ f ast V > 6 
SS Hii 
SS CID 
0 Se, 
: Ss 
wits ISS 
139 ? 
Ny if IAN 
Field of vision for movement, for blue and red on 20. 4. 1910. 
At the same time however several figures, measuring 2 c.M. in diameter, were 
cut out from white cartoon, hearts, circles, diamonds, triangles etc. 
Whenever these different figures were introduced from the left, into the left 
halves of the fields of vision, they were regularly rightly recognized by the patient at 
30°—15° from the fixed point. 
But if they were presented to vision from the right, in the right halves of the 
fields of vision, they never, although the patient saw them approaching, were 
rightly recognized by him, before they reached the fixed point, or before they bad 
passed the vertical diameter. 
The scheme made from this latter experiment, on April 20th 1909, is likewise 
reproduced here. 
The exterior boundary indicates the field of vision for movements, the intercrossed 
lines mark that for blue. Zhe area filled with circles is the field of vision, 
within which the shapes of 2 c.M. diameter are perceived. It follows 
