VETERINARY OPHTHALMOLOGY. 123 



the cornea will also present anaesthesia. Dilation 

 and inactivity of the pupil is a constant symptom. 

 The word glaucoma means green, and so we do get 

 a greenish reflex in glaucomatous eyes. The pain may 

 be slight or severe, and may have general symptoms of 

 fever, etc. Swelling of the lids, chemosis and protru- 

 sion (exopthalmus) are all due to infiltration from pres- 

 sure. Glaucoma comes in relays, /. ^., have a prodromal 

 stage of a variable duration, weeks, months ; and then 

 a sudden attack, lasting from a few hours to days, and 

 then the eye returns to normal or nearly so. These 

 attacks return, and the intervals become shorter and 

 shorter, and finally, chronic or a.bsolute glaucoma. Some 

 cases go right from an acute to absolute with no re- 

 batement of symptoms. Glaucoma tends to absolute 

 blindness. Any condition causing vascular turges- 

 cence may cause gout, rheumatism, fever. The use of 

 atropine has caused it. Prognosis is always bad. I 

 had the pleasure last year of showing the class a caso 

 of Glaucoma secimdarium in one of the clinics. One of 

 the patients from the Broadway car stables was 

 pointed out to me as having an interesting eye, and so 

 it was. Secundarium means increased intra-ocular 

 tension, consequent to some other disease. This case 

 presented total occlusion of the pupil, the pupil being 

 fast completely around to the lens capsule. (See Fig. 

 47.) The eye was buphthalmic and hydrojyhthalmic. The 

 whole globe was enlarged, and the cornea especially was 



