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Updated: May 13, 2025
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.
Some of the swollen surface cells open spontaneously and discharge their contents, others drop off. The process causes a roughening of the surface of the cornea and produces a faint haziness. There is another form of haziness that develops on sudden rise in tension and completely disappears on subsidence of the tension. Weiner Akad. d.
The ulcer widens and deepens, and sometimes eats through the cornea, and the aqueous humour escapes. Fungous granulations spring from it, protrude through the lids, and the animal evidently suffers extreme torture. A remarkable peculiarity attends this affection of the eye.
In fact an opaque band runs transversely across the corner of the eye, and the iris, or coloured portion, sends out two processes, which meet each other under the transverse band of the cornea, so that the fish appears to possess even a double pupil. Still, on closer investigation, the connection, between the divisions of the pupil are apparent, and can readily be seen in the young fish.
Anemia of the soft parts at the points of pressure results from prolonged sitting or lying in one position, and as a result pain compels a muscular action that shifts the damaging pressure this is the pain of anemia; when the rays of the blazing sun shine directly upon the retina, pain immediately causes a protective muscular action the lid is closed, the head turns away this is light pain; when standing too close to a blazing fire the excessive heat causes a pain which results in the protective muscular action of moving away this is heat pain; when the urinary bladder is acutely overdistended the resultant pain induces voluntary as well as involuntary muscular contraction this is evacuation pain; associated with defecation is a characteristic warning pain, and an active pain which induces the required muscular action this, like the pain accompanying micturition, is an evacuation pain; in obstruction of the urinary passages and of the large and the small intestine the pain is exaggerated, as is the accompanying muscular contraction this is a pathologic evacuation pain; when the fetus reaches full term and labor is to begin, it is heralded by pain which is associated with rhythmic contractions of the uterine muscle; later, many other muscles take part in the birth and pain is associated with all these muscular contractions these are labor pains; when a foreign body, be it ever so small, falls upon the conjunctiva or cornea there results what is perhaps the acutest pain known, and quick and active muscular action follows this is special contact pain.
If the surface of the cornea were cylindrical, we should have a very different notion of a round body from that which we possess now; and if the strength of the fabric, and the force of the muscles, of the body were increased a hundredfold, our marble would seem to be as soft as a pellet of bread crumbs.
Smith's features are good, no doubt. Her eyes are good. An oculist would be satisfied with them. They have a cornea, a crystalline lens, a retina, and so on, and she can see with them. This is all very satisfactory, I do not deny, as far as it goes. Physiologically her eyes are admirable; but for poetry, for love, or even for flirting, they are useless.
Some found globules everywhere, some fibres. Students disputed whether the conjunctiva extended over the cornea or not, and worried themselves over Gaultier de Claubry's stratified layers of the skin, or Breschet's blennogenous and chromatogenous organs. The dartos was a puzzle, the central spinal canal a myth, the decidua clothed in fable as much as the golden fleece.
And though he knew the poor devil, he pretended to see him for the first time, murmured something about "cornea," "opaque cornea," "sclerotic," "facies," then asked him in a paternal tone "My friend, have you long had this terrible infirmity? Instead of getting drunk at the public, you'd do better to die yourself." He advised him to take good wine, good beer, and good joints.
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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