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When there is fever, it will be necessary to bleed, and purge. Scarifying the conjunctiva with the point of a lancet, has been resorted to by some veterinary surgeons with success.
The cornea arises from the sclerotic tunic, the uvea and secundina take their origin from the pia mater, and the conjunctiva from a thin pellicle or membrane which covers the exterior of the cranium and is nourished by a transudation of the blood through the coronal suture.
Hæmorrhages also occur into the skin, presenting the appearance of bruises, into the orbit and conjunctiva, and from the mucous membranes. The treatment consists in correcting the errors in diet. The infant should have a wet nurse or a plentiful supply of cow's milk in its natural state.
In von Graefe's Archiv there is a record of a man of seventy-five who suffered complete avulsion of the eye by a cart-wheel passing over his head. Verhaeghe records complete avulsion of the eye caused by a man falling against the ring of a sharp-worn key. Hamill describes the case of a young girl whose conjunctiva was pierced by one of the rests of an ordinary gas-bracket.
In this way, skin from the chest may be brought up to form a new forehead and eyelids. Grafts of mucous membrane are used to cover defects in the lip, cheek, and conjunctiva. The technique is similar to that employed in skin-grafting; the sources of mucous membrane are limited and the element of septic infection cannot always be excluded. Fat.
The worm is of a whitish colour, sometimes inclining to brown. Its thickness is from a half to two-thirds of a line, and its length has sometimes reached to ten or twelve feet. Small specimens have been found beneath the tunica conjunctiva of the eye; and one species of the same genus of Nematoidea infests the cavity of the eye itself. Planaria. In the journal already mentioned, Dr.
How does the method of adjustment, or accommodation, of the eyeball differ from that of a telescope or a photographer’s camera? With two eyes how are we kept from seeing double? What different purposes are served by the tears. Trace them from the lachrymal glands to the nostrils. Show how the proper lenses remedy short- and long-sightedness. Describe the conjunctiva and give its functions.
Occasionally, however, the inflammation of the conjunctiva will be exceedingly intense, the membrane vividly red, and the eye impatient of light. An opacity spreads over the cornea, and this is quickly succeeded by ulceration. The first spot of ulceration is generally found precisely in the centre of the cornea, and is perfectly circular; this will distinguish it from a scratch or other injury.
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