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A kind of gelatine obtained by boiling cartilage. Chordæ Tendineæ. Tendinous cords. The middle coat of the eyeball. The milk-like fluid formed by the digestion of fatty articles of food in the intestines. The pulpy liquid formed by digestion in the stomach. Minute hair-like processes found upon the cells of the air passages and other parts. Ciliary Muscle.
Portions of the iris angle may remain open while other parts are closed. Where the iris tissue lies in contact with the cornea, the stroma of the iris almost totally disappears. In some cases the iris becomes totally adherent to the cornea. Ciliary Body and Chorioid.
Hildebrand's "demands of the eye" resolves itself into the stimulation plus repose of the ciliary muscle, the organ of accommodation. A real unity even for the eye alone would have to include not only space relations in the third dimension, but relations of line and mass and color in the flat. The distinction is that between a beautiful and a completely realistic picture.
Eventually the ciliary body becomes very much reduced in thickness, is flattened out, the ciliary processes reduced in size and the blood vessels disappear or are reduced much in caliber. Those that persist possess walls that are much thickened. This is particularly true of hemorrhagic glaucoma.
The eye waters and is hypersensitive, the iris is discoloured and reacts sluggishly to light, and there is a zone of ciliary congestion around the cornea. The appearance of minute white nodules or flakes of lymph at the margin of the pupil is especially characteristic of syphilitic iritis.
In ordinary conditions of the eye, this ligament is kept tense so that the front part of the lens is flattened somewhat by the pressure on it. All around the edge, where the cornea, sclerotic, and choroid meet, is a ring of involuntary muscular fibers, forming the ciliary muscle.
Domec uses an elliptical eye cup, the concave margins of which fit closely about the globe. The air is exhausted with each respiration of the patient and from 50 to 200 tractions are made at each sitting. Domec is of the opinion that this method succeeds in two ways, namely, in producing analgesia by traction on the ciliary nerves, and in reducing intra-ocular tension.
It is probable that the secretion from the glandular zone of the ciliary body is increased. On subsidence of the congestion, as after miotics or iridectomy, the tissues may return to very nearly a normal condition. The iris recedes from contact with the ligamentum pectinatum and cornea and the filtration angle is again open.
Whenever defects in focusing are present, particularly in astigmatism, extra work is thrown on the ciliary muscle as well as the muscles that move the eyeballs. The result is frequently to induce a condition, known as muscle weakness, which renders it difficult to use the eyes. Even after the defect in focusing has been remedied, the muscles recover slowly and must be used with care.
"The only change observed in these tissues is a reflex edema, excited apparently by pressure on the ciliary nerves and, probably, irritation of the vaso-motor fibers of the sympathetic." Lachrymal Gland. Hyper secretion due to reflex irritation. Cornea.
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