A name of the magistery of coral, which it hath obtained from its whiteness.

Albugo oculorum. White speck on the eyes. The Greeks generally named it leucoma: the Latins and ancient authors, nubes, pterygium, pannux oculi,onyx,ftaralamfisis,argema,and aegides; Dr.wallis the albuginous, or pearly corneal speck. The French name it tache blanche, if it shines; the Latins, marga-rita; the Greeks, the French, perle; Dr.

Cullen, caligo cornet. See Achlys.

All cicatrices appear white in the black part of the and astringents thicken them.

It is sometimes called nubecula, when superficial; and albugo, when deep: when the speck appears of a shining white, and without pain, it is called by some a cicatrix; when of an opake whiteness, an albugo: seated superficially, it hath been termed a speck; and more deeply, a dragon; when it projects a little, it is called a pearl.

The disease consists in a chronic inflammation of the eye, from erosion, measles, small-pox, wounds, burns, See.

When deep, the cure is difficult; when the consequence of a wound or ulcer, it is rarely cured; when the natural shape of the eye is altered, the prognostic is unfavourable. The albugo which follows an inflammation generally disappears spontaneously.

The aquacupri ammon, alone sometimes succeeds in the cure; and in general saturnine and mildly astringent or stimulant applications are useful. When the film is very tough, and the eye not inflamed, common glass finely levigated may be blown upon it through a quill, and repeated once in a day or two. Dr. Kirkland thinks, that, in general, nature, assisted by strengthening the eye with cold water, will affect the cure. A single drop of laudanum, dropped into the eye night and morning, will often cure it. Boerhaave prescribed the repeated use of calomel and cathartics to dissolve the lymph, and free the cornea from leucoma. See Unguis. See Kirkland's Inquiry, vol. i. p. 192. Bell's Surgery, iii. 356. Wallis's Nosology of the Eyes, p. White's Surgery, 228.