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The eyes seemed contracted within their sockets, and at times were nearly hidden from view, the corneas were somewhat opaque, the photophobia intolerable, and the animal showed evident signs of extreme pain, by his restless anxiety and constant efforts at scratching and rubbing the eyes.
There is sometimes a tendency to utter broken and meaningless words, and it is noted that sometimes women have called out on their mothers. The dilatation of the pupils produces photophobia, and in the course of detumescence the eyes are frequently closed from this cause.
The one suffered on its arrival in camp from ophthalmia, now completely cured, no trace of photophobia remains, no redness nor oedema; the other had its sub-maxillary glands enlarged; these glands are now reduced and nothing to worry about. Dr. Suleïman Bey's complaints upon this point therefore proved equally inexact. The Ras-el-Tin Camp.~
Bourgeois considers as predisposing moments the smoke of the camp-fires, the want of sleep, the marching during the night, and describes the affection as follows: The conjunctiva became dark red, swelled together with the eyelids; there was a greatly exaggerated lachrymal secretion associated with severe pain; the eyes were constantly wet, the photophobia reached such a degree that the men became totally blind, suffered most excruciating pain and fell on the road.
Snow-blindness occurs from prolonged exposure of the eyes to snow upon which the sun is shining. Some years ago, some seventy laborers, who were clearing away snow-drifts in the Caucasus, were seized, and thirty of them could not find their way home, so great was the photophobia, conjunctivitis, and lacrimation. Graddy reports six cases, and many others are constantly occurring.
Solutions of nitrate of silver are not carried about and decanted into baths and back again into bottles without tracking their path on persons and things. The photophobia of the "sensitized" plate, of course, requires a dark apartment of some kind: commonly a folding tent is made to answer the purpose in photographic excursions.
As the disease progresses, the conjunctiva becomes more vascular, the photophobia intolerable, the cornea itself becomes opaque, and sometimes exhibits a vascular appearance. There is considerable itching of the ball, as evinced by the disposition of the dog to close the eye.
It commences as a diffuse haziness or steaminess near the centre of the cornea, and as it spreads the entire cornea assumes the appearance of ground glass. The chief complaint is of dimness of sight, which may almost amount to blindness, but there is little pain or photophobia; a certain amount of conjunctival and ciliary congestion is usually present, and there may be iritis in addition.
Peters witnessed this idiosyncrasy several times and believed it to be permanent. The most unpleasant of the untoward symptoms of quinin exhibition are the disturbances of the organs of special sense. Photophobia, and even transient amblyopia, have been observed to follow small doses.
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