MANUAL FOR STABLE SERGEANTS. 141 



vessels proceeding from its sclerotic margin. The cloudiness in- 

 creases to a deep white opacity. In severe cases the cornea may 

 become of a bright pink color, and abscesses or ulcers may form. 



Treatment. — Any foreign body adhering to the cornea must be 

 removed and the eye washed out mth a saturated solution of horic 

 acid. The eye is then covered as directed in conjunctivitis and 

 treated in the same way. The opacity (cloudiness) remaining after 

 the inflammation has subsided may be removed by the applica- 

 tion of a few drops of the following solution: 



Silver nitrate grains. . 2 



Water ounce . . 1 



Mix. Place a few drops in the eye once a day. 



437. Recurrent ophthalniia (periodic ophthalmia). — An 

 inflammatory condition of the interior of the eye, intimately related 

 to certain constitutions, soils, climates, and systems of management, 

 sho"v\T.ng a strong tendency to reciu again and again and usually 

 ending in blindness from cataract or other destructive lesions. 



Causes. — A wet, imper\T.ous, swampy, or undrained soil. Any 

 debilitating disease, overwork, insufficient or indigestible food, 

 and local irritants, such as blows on the eye, dust, and other foreign 

 bodies. Also infection. 



Symptoms. — In some cases there is high fever, in others this 

 may be absent. The attack is sudden, the. eyelids are closed, and 

 the tears run down the face. The conjunctiva is red and congested, 

 and the outer border of the corn-ea is clouded. In a few days the 

 cloudiness extends over the entire cornea, and a grajdsh yellow 

 sediment frequently appears in the anterior chamber just back of 

 the cornea. Attacks last from 10 to 15 days, and reappear in from 

 30 to 60 days. From five to seven attacks usually result in blindness, 

 and then the other eye is likely to suffer a similar attack until both 

 are ruined. 



Treatment. — Treat as for conjunctivitis. In addition provide 

 good healthful surroundings and give a good tonic, as follows: 



Ounces. 



Iron sulphate 1 



Gentian, powdered li 



Nux vomica li- 



IMix and make 12 powders. Give a powder twice a day in feed. 



