23 



be slightly swollen ; this inflammation may in a 

 short time extend to all parts of the conjunctiva 

 and involve the circumference of the cornea ; the eye 

 is very sensitive to light, and is kept closed continually. 

 During the early stages the secretion of tears is greatly in- 

 creased and they flow in profusion over the cheek, but dur- 

 ing the more intensive or severe inflammation a mucus exu- 

 date appears, which is of light gray color and contains small 

 semi-transparent flaky particles. If the inflammation is still 

 more severe the exudate or secretion appears as a grayish 

 yellow or a green fluid which consists of pus cells and tears. 

 At one time, in severe cases, the secretion may be pus mixed 

 with seruD, and at another it may be pus mixed with mucus. 

 An organized membraneous exudate is present in diptheretic 

 conjunctivitas and to a limited extent in fallicular conjunc- 

 tivitis. The superficial layer may be involved in severe 

 cases, while in other instances all the layers and the submu- 

 cous tissue may be involved in the inflammation; these dis- 

 tinctions are not always well defined; but as a rule, great 

 intensity and long duration of the inflammation indicate 

 that the entire conjunctiva and submucous tissues are 

 affected. 



Teeatment. — The first thing to do is to remove 

 the cause if it can be discovered. If the animal 

 is very sensitive about having the eye examined, it 

 is best to put a twitch on his nose. Place the thumb 

 on the lower lid and the index finger on the upper; by 

 gradual and firm pressure, open the eye and look carefully 

 for a hay seed or any foreign body or irritating particles 

 that may be in view. After completely cleansing the index 

 finger and removing the long, rough or sharp margin of the 

 finger nail, it may be pushed around under the lids and un- 

 der the haw in search of the irritant; this must be done with 

 great care, and it is always best to put a few drops of a three 

 per cent, solution of cocaine into the eye before introducing 



