Ketropiian and Ophthatnia 309 
Sometimes the “haw” becomes inflamed and swollen, 
or partially drawn across the eye, as in tetanus or 
“lock-jaw.” This condition is called “hooks” by some 
horsemen. The affected haw is sometimes cut out; the 
operation, however, is a ernel and useless one. Oper- 
ations of the eyes shonld he performed only by a skilled 
surgeon. 
Evctropium 
Eetropium is a turning out of the eyelid, usually the 
lower one, so that it presents a red and irritated appear- 
ance. It sometimes occurs in horses and dogs. It is 
usually the result of severe inflammation, or an injury. 
When this condition is permanent, the only treatment 
is to remove a V-shaped piece from the lower lid, 
stitching together the parts so as to bring the lid up 
to its normal condition. 
Diseases of the eyelids are not common among’ 
animals. 
Simple Ophthalmia 
This is a simple inflammation of the membranes 
covering the eye. It is usually the result of an injury, 
or of foreign bodies in the eye, such as lime from 
white-wash, chaff, or pollen. . 
The eye is red and irritated, often the lids are red 
and swollen, and there is a profuse discharge of tears, 
that run down the face. The blood-vessels on the 
surface of the eyeball are distended, and the membrane 
that supports them presents a bluish or milky appear- 
ance. Strong light irritates the eye. 
