DISEASES OF THE DOMESTIC ANIMALS 801 



Oestrus Larvae in Accessory Sinus's of Sheep. False Gid or 

 Sturdy. Gadfly Vertigo. 



Treatment is unsatisfactory. Tar on nose of sheep to prevent en- 

 trance of gadilies. Impossible to insufHate or inject agents to ex- 

 pel larvae. Early slaughter often most satisfactory. Trephine 

 either side of medium line between eyes and remove with forceps 

 and irrigation (2 per cent, lysol), or by injection of a little ben- 

 zine and YSfater (Moussu). 



Opacity op Cornea. See Corneal Opacities. 



Open Joint. 



In recent wound, shave adjacent parts, wash them carefully with 

 soap and water and 70 per cent, alcohol. Douch wound with force 

 for 16 to 30 minutes, using corrosive sublimate (1-2,000), or lysol 

 (2 per cent.), or other antiseptic solution. Then suture and close 

 wound with iodoform collodium (1-10), sterile gauze and bandage, 

 if latter possible. If suturing impossible, apply fly blisters about 

 joint. If bandaging is not feasible, apply constant cold antiseptic 

 irrigation to the joint for next few days. (Bier's hyperemia, p. 833.) 

 Remove shoes from horses and place in slings. Prescribe purge. 

 Whenever possible, place over bandage a firm plaster of paris, wood 

 or tin splint. 



Open Joint, Infected. 



Open so as to irrigate and drain thoroughly. Bandage and dress 

 with sterile gauze daily, after thorough irrigation with antiseptic 

 fluid, as above. Fixation by splint, if possible. (Bier's hyperemia, 

 p. 833.), Repeated blisters in large animals may aid. Recovery 

 occurs with stiffness, or anchylosis, in most cases. Treatment in 

 large animals of open, infected joints having much motion is not 

 usually profitable. Laxative diet— H. and C, mashes, gruels, roots 

 and green food. Dogs, gruels and milk, during acute stage. 



Ophthalmia. (Periodic in Horses.) 



Confine in dark quarters. Foment eye with hot boric acid( 3 per 

 cent.) solution for one-half hour at time, thrice daily. Drop 1 per 

 cent, solution of atropine sulphate in eye four to six times daily. In- 

 ternally, give physic ball, and sweet spirit of nitre and potassium 

 citrate thrice dally, and sloppy or green food. 



Ophthalmia, Simple. See Conjunctivitis. 



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