I. THEY are called in Greek, 〈 in non-Latin alphabet 〉〈 in non-Latin alphabet 〉. in Latin, Phlyctaenae Oculorum; and in English, Blisters of the Eyes.
II. They are litte Tumors, like Gromwel-seed, happening in the white of the Eye, viz. in the Cornea and Adnata; being full of Water, proceeding from a sharp Humor: which being broken, there follows an Exulceration.
III. Those in the Adnata are red; those in the Cornea, blackish if outwards, but whitish if in∣wards.
IV. The Prognosticks. Those which grow in the Adnata, are less dangerous than they in the Cornea.
V. The more superficial, the less danger; the more inward, the more danger: for it is to be feared, that they should erode the whole thickness of the Cornea; whereby the watery Humor will be let forth, or the Ʋvea start out.
VI. If there be an Exulcera∣tion, and it be not stayed, it will corrupt the whole Eye: but if the Ulcer seizeth only the Ca∣runcle, and that the Punctum Lachrymale grows callous, it becomes Fistula Lachrymalis.
VII. The Cure. In the Cure hereof, you must resolve the Matter conjoined, and revert the ante∣cedent Cause; taking great heed that you bring not the Pustules to suppuration, lest they should turn into Ulcers.
VIII. Therefore those Evacua∣tions, Revulsions, and Deriva∣tions, which we shall hereafter use in the Cure of an Ophthal∣my, must be used here.
IX. If they be with inflam∣mation, they must be cured as other Inflammations: for which purpose, Saccharum Saturni dis∣solved in Eyebright or Fennel Water, is here of all Remedies the chifeest.
X. If they be from a waterish Humor, you must exsiccate and dry; which you may do with Lapis Tutia, Calaminaris, and such like: here Brandy dropt into the Eye several times, is of good use.
XI. Afterwards you must apply such Topicks, which may gently