DISEASES OF THE IRIS AND CILIARY BODY 115 



unless secondary glaucoma (see Glaucoma) arises. 

 Although pain is a symptom of iritis, it is not present in 

 ^all cases, and the presence of iritis in some cases can 

 only be determined by the use of the ophthalmoscope, 

 when, after the use of a mydriatic, small pigment spots 

 may be seen upon the capsule of the lens, near the 

 pupillary margin, at the point where the iris has be- 

 come agglutinated. 



In the severe types the pain is almost unbearable, 

 more intense at night, and it often radiates to the back 

 of the head. The conjunctival injection is also very 

 great, and if one is not on his guard he may mistake it for 

 a conjunctivitis by ^^snap diagnosis." The course may 

 be from one to several weeks. It frequently clears up, 

 but may recur in the same or fellow eye. 



Secondary iritis and cyclitis is the result of disease of 

 the neighboring structures or injury. The injuries re- 

 ceived by penetrating bodies in this region are the most 

 apprehensive, more particularly if the penetrating agent 

 is not sterile. Wounds of the ciHary region by infected 

 bodies produce terrific reaction, as a rule often fol- 

 lowed by loss of vision and suppuration of the uveal 

 tract. 



One of the gravest consequences of this "condition is 

 sympathetic involvement of the other eye— sympathetic 

 ophthalmia— manifest at first by irritation, and later 

 by inflammation of the iridociliary region, and eventu- 

 ally loss of that eye also. So that it behooves us to ex- 



