18 
THE VETERINARY ART IN INDIA. 
Gutta Serena, or Palsy of the Optic Nerve. 
This disease but seldom occurs, and is generally produced by 
staggers, severe blows on the head, or any thing which can affect 
the brain. Its symptoms are, a peculiar transparent appearance 
of the centre of the eye, on account of which it is termed by far- 
riers, glass eye. 
The pupil, too, is very much expanded, from the nerves having 
lost the faculty of receiving the impression of light ; the pupil is, 
therefore, continually dilated, endeavouring to perform its accus- 
tomed functions, thus, in a short time the pupil becomes preter- 
naturally larger ; but the most easy method of discovering this 
disease is the eye retaining its transparent appearance, and yet a 
total blindness existing. 
One of the most perfect cases of this disease I ever saw was a 
horse of Mr. Coleman’s ; and, as the cure was also perfect, I shall 
relate the case, and the method pursued for his recovery. The 
horse reared up, and fell backwards, and in his fall the side of his 
head struck a stone building : the blow was so violent that he 
was with great difficulty recovered from the state of insensibility 
in which he lay ; however, on his recovery from this state, a 
palsy of the nerve was discovered to be the consequence. He 
had been copiously bled, a purge was administered, spirit of tur- 
pentine was rubbed over his head, spine, and extremities, for the 
purpose of stimulating, salt was dissolved in sulphuric acid or 
oil of vitriol, the vapour of which was received up his nostrils, 
and, by persevering a few days in this mode of treatment the animal 
was perfectly recovered. 
From the great success attending this mode of treatment in the 
above case, and from the rational principle on which it is founded, 
I would recommend it in every case of gutta serena, from what- 
ever cause it may proceed. 
Of the Worm in the Eye. 
This wonderful phenomenon, or production in the animal economy 
of the horse I will not presume to explain, for I have witnessed 
but one case, which was on my first arrival ; and being under 
some fear, from the description I had received of the ferocious- 
ness of the animal, I would not venture to operate unless he was pre- 
viously thrown. In consequence of this I was not successful, 
although I made two very extensive incisions immediately over 
the worm as he moved on the surface. From the position of 
