124 VETEEINAEY OPHTHALMOLOGY. 



distended, resembling, indeed, a soap-bubble. The lens 

 might have been of ground glass for all its transpar- 

 ency. Nothing could be done. 



I have said Atropine has caused. Since then, in- 

 vestigations have led to the use of Scopolamine Hydro- 

 bromate, which we have reason to believe does not in- 

 crease intraocular tension. Therefore, use in place of 

 Atropine (in strength 1 to 200) wherever have cause 

 to suspect «;iy t?icrease in tension. Another point. In 

 making up collyria, use Trikresol 1 to the 1000 (in 

 place of distilled water only as this will not decompose 

 and is harmless to the eyes). 



Teeatment. — The only medicinal remedy is Eserine 

 Sulph. ^% every couple of hours, and must be used 

 early. In veterinary practice the opportunity to use 

 it does not occur, as the condition is well advanced by 

 the time it is diagnosed. The eserine, you know, will 

 ontract the pupil and thus tend to freeing the iritic 

 angle. Also constricts the vascular system, diminish- 

 ing secretion. 



Dovbt use atropine. Iridectomy^ introduced in '57 by 

 Von Graefe, is the operation for glaucoma. The incision 

 should be in the sclera, and allow the aqueous to drain 

 away gradually^ and be sure that no remnants of the 

 iris remain in the wound. The eye is not exempt from 

 parasites, and we meet with Acari (mites), and nothing 

 need be further said, as you all know of them and have 

 suffered from their getting in the eye. 



