Page 1014
CHAP. XXIII. Of an ƲLCER of the EYE.
I. WHAT the Greeks call 〈 in non-Latin alphabet 〉〈 in non-Latin alphabet 〉. and the Latins, Ulcus Oculi, vel Oculorum; we in English call, An Ulcer of the Eye, or Eyes.
II. The Kinds. They are consi∣dered; 1. In respect to the Part. 2. In respect to their Qualities, Natures, or Accidents.
III. In respect to the Part af∣flicted: the Ulcer possesses either the Coats of the Eyes, as the Adnata or Conjunctiva, Cornea, Ʋvea; of which those in the Conjunctiva or Cornea, are chief: or the fleshy Corner next the Nose. Those of the Cornea are either superficial, or deep.
IV. In respect to their Natures: some are mild, and these chiefly possess the Tunicles of the Eye; or malign, and they possess the fleshy part.
V. The malign are also twofold; viz. either not contagious, or contagious: the not contagious are twofold, viz. Ʋlcus depa∣scens, or Ʋlcus cancrosum: the contagious are threefold, viz. Carbunculosum, Venereum, and Morbillosum.
VI. So that out of what has been said, we must treat of Ʋlcers of the Eyes, 1. As they affect the Adnata or Conjunctiva. 2. As they affect the Cornea superfi∣cially. 3. As they affect the Cornea deeply. 4. As they af∣fect the fleshy part with Ʋlcus depascens. 5. As they affect the fleshy part with Ʋlcus Cancro∣sum. 6. As they are contagious in the Small Pox. 7. As they are contagious, in the Venereal Disease. 8. And as they are contagious, from a Pestilential Anthrax, or Carbuncle.
VII. The Causes. The Proca∣ctartick Causes, are from Blows, Contusion, or some external Vio∣lence. The Antecedent Causes are from a Cacochymy of evil Humors, or a Plethory, if such a thing is in Nature. The Pro∣ximate or Conjoined Cause is an Inflammation, or Ophthalmy, or sharp corrosive Humors lodged in the Part.
VIII. The Signs. These Ʋlcers are known by sight; from the Part they affect, and the nature and quality of the Ulcer.
IX. The Prognosticks. They are dangerous, and difficult in the Cure; especially those in the Cornea, and Pupilla, where for the most part, they leave Blind∣ness.
X. If the Cornea is wholly eroded, the Aqueous Humor is let forth; and many times also the Crystalline.
XI. If there is an Inflamma∣tion withal, it is generally very painful; and ought forthwith to be removed, by those things prescribed in an Ophthalmy.
XII. Ʋlcers of the Eyes in Per