STY, OR FURUNCLE (BOIL) OF THE EYELID.

This is an inflammation of limited extent, advancing to the formation of
matter and the sloughing out of a small mass of the natural tissue of
the eyelid. It forms a firm, rounded swelling, usually near the margin
of the lid, which suppurates and bursts in four or five days. Its course
may be hastened by a poultice of camomile flowers, to which have been
added a few drops of carbolic acid, the whole applied in a very thin
muslin bag. If the swelling is slow to open after having become
yellowish white, it may be opened by a lancet, the incision being made
at right angles to the margin of the lid.

ENTROPION AND ECTROPION, OR INVERSION AND EVERSION OF THE EYELID.

These are respectively caused by wounds, sloughs, ulcers, or other
causes of loss of substance of the mucous membrane on the inside of the
lid and of the skin on the outside; also of tumors, skin diseases, or
paralysis which leads to displacement of the margin of the eyelid. As a
rule, they require a surgical operation, with removal of an elliptical
portion of the mucous membrane or skin, as the case may be, but which
requires the skilled and delicate hand of the surgeon.

TRICHIASIS.

This consists in the turning in of the eyelashes so as to irritate the
front of the eye. If a single eyelash, it may be snipped off with
scissors close to the margin of the eyelid or pulled out by the root
with a pair of flat-bladed forceps. If the divergent lashes are more
numerous, the treatment may be as for entropion, by excising an
elliptical portion of skin opposite the offending lashes and stitching
the edges together, so as to draw outward the margin of the lid at that
point.

WARTS AND OTHER TUMORS OF THE EYELIDS.

The eyelids form a favorite site for tumors, and above all, warts, which
consist in a simple diseased overgrowth (hypertrophy) of the surface
layers of the skin. If small, they may be snipped off with scissors or
tied around the neck with a stout, waxed thread and left to drop off,
the destruction being completed, if necessary, by the daily application
of a piece of sulphate of copper (blue vitriol), until any unhealthy
material has been removed. If more widely spread, the wart may still be
clipped off with curved scissors or knife, and the caustic thoroughly
applied day by day.

A bleeding wart, or erectile tumor, is more liable to bleed, and is best
removed by constricting its neck with the waxed cord or