18 
CLAUDE D. MORRIS. 
frequently changed. I have had a number of cases under my 
care that cannot be classed under the head of staphylomatis 
conditions. Yet to the casual observer they might appear 
as such enlargements on the cornea. They seem to partake 
more of the nature of granular oma or fibroma, arising from 
some constitutional disturbance. They are best treated (if 
the circumstances will warrant) by excision, but more par¬ 
ticularly with caustics followed by a moderate solution of 
zinc sulphate and belladonna. The symptoms in all these 
cases that are first noticeable by the care-tender, is that the 
animal keeps the eye closed a portion of the time, tears also 
flowing over the cheek, and upon examination, he invariably 
says that the animal has a piece of chaff in its eye. 
Hyperasmia of the iris is of far more frequent occurrence 
than is generally supposed. Nor can we be surprised at this, 
when we remember the close connection which exists between 
the iris and the cornea, on one hand, and the iris ciliary body 
and choroid, on the other. Indeed, we may regard the iris 
as the anterior termination of the ciliary body and choroid, 
the whole forming in reality one tissue, the uveal tract. 
Hence the frequency with which inflammation of the iris ex¬ 
tends to the ciliary body and choroid, and vice versa. In a 
hyperasmic condition of the iris, we find that there is more 
or less marked subconjunctival injection; that the pupil is 
somewhat contracted and sluggish, not reacting freely on the 
application of atropine, and that the iris is discolored, which 
is due to the increased vascularity imparting a reddish tint to 
the natural color of the iris. In iritis there are superadded 
to the symptoms of hypersemia of the iris those of an effu¬ 
sive or plastic lymph at the edge of the pupil, or on the sur¬ 
face and into the stroma of the iris. 
Amongst the earliest symptoms of iritis are, injection, 
ciliary contraction, sluggishness of the pupil, and a discol¬ 
ored, dull appearance of the iris. But a far more constant 
symptom is the subconjunctival vascularity, giving rise to a 
mqre or less broad, rosy zone or parallel vessels, closely 
ranged round the cornea. This zone is generally of a bright 
rose color, and consists chiefly of small arterial twigs. 
