DISEASES OF THE EYE. 
45 
silver should be applied to it. If this proves ineffectual, 
then it must be extirpated by a regular veterinary surgeon. 
ERUPTION - ON THE EYELIDS. 
Symptoms. —The edges of the eyelids are occasionally 
affected with scale-like eruptions. This is always attended 
with great itching, which causes the horse to rub his eyelid 
against any projecting part within his reach, in the perform¬ 
ance of which it often happens that the animal injures the 
eye itself. 
Remedies. —The edges of the eyelids should be anointed 
with the following :— 
Nitrated ointment of mercury \ ounce, 
Hogs’ lard . . . \ ounce, 
Bees’ wax . . . \ ounce. 
A few applications will generally produce the desired effect. 
WARTS. 
The eyelids are sometimes affected with warts, which are 
very irritating to the animal in consequence of his rubbing 
them on some prominent part: this causes them to bleed, 
and increases their number. 
They should be cut off with a pair of sharp scissors, and 
the roots touched with nitrate of silver, lunar-caustic, or 
blue vitriol. 
GUTTA SERENA. 
Symptoms. —This exhibits itself by an extraordinary dila¬ 
tion of the pupil, which becomes immovable, and has a 
oright glassy appearance. This is caused by a paralysis of 
the optic nerve, or the surface of the retina, (or mirror of 
the eye,) occasioned by a determination ot blood to the brain, 
D 
