39 



the coruea. For perforations of the cornea directions for 

 treatment have been given. To prevent adhesions to the 

 capsule of the lens, the pupil may be kept expanded, during 

 the active stage of the inflammation, by the use of atropine. 

 The following has [nv:ven very beneficial in the hands of the 

 writer: atropine 1 grain; potassium iodide 5 grains; pure 

 water 1 ounce. A few drops may be put between the lids two 

 times per day. The application of hot water will stimu- 

 late the absorbents and hasten the removal of the exudates 

 and, at the same time, reduce the pain; while cold water 

 fomentations will best reduce fever and inflammation. 



CLOSURE OF TEE PUPIL. 



If the iris, durhifj the extreme contraction of the pupil, 

 becomes bound down to the capsule of the lens throughout 

 its entire pupillary margin, it may leave a small, clear pupil- 

 lary opening; this condition is denominated exclusion of the 

 pupil. But if the pupil be completely obliterated during 

 extreme contraction of the pupil when the iris is attached to 

 the capsule of the lens, or the small pupil becomes filled in 

 with an opaque, inflammatory deposit or exudate, the condi- 

 tion is termed occlusion of the pupil. The destruction of 

 the pupillary attachment of the iris to the lens capsule is 

 soon followed by the formation of a cataract — opacity of the 

 lens. The anterior division of the aqueous chamber is com- 

 pletely separated from the posterior and the iris is bulged 

 forward at all parts except at its marginal attachments to the 

 lens capsule. 



If the attachments of the iris to the capsule are not firm 

 and solid, the iris may be torn loose by the use of atropine. 

 In case that does not succeed, the iris may be mechanically 

 separated or detached by a surgical operation ; or a new pu- 

 pillary opening may be made by the operation known as iro- 

 dectomy. These operations can only be performed by a 



