and twenty-two years; and Chisholm
reports the lodgment of a fragment of metal in the iris for
twenty-three years. Liebreich extracted a piece of steel from the
interior of the eye where it had been lodged twenty-two years. Barkar
speaks of a piece of steel which penetrated through the cornea and
lens, and which, five months later, was successfully removed by the
extraction of the cataractous lens. Critchett gives an instance of a
foreign body being loose in the anterior chamber for sixteen years.
Rider speaks of the lodgment of a fragment of a copper percussion cap
in the left eye, back of the inner ciliary margin of the iris, for
thirty-five years; and Bartholinus mentions a thorn in the canthus for
thirty years. Jacob reports a case in which a chip of iron remained in
the eyeball twenty-eight years without giving indications for removal.
It was clearly visible, protruding into the anterior surface of the
iris, and although it was rusted by its long lodgment, sight in the eye
was fairly good, and there was no sign of irritation.

Snell gives an instance in which a piece of steel was imbedded close to
the optic disc with retention of sight. It was plainly visible by the
opthalmoscope eighteen months after the accident, when as yet no
diminution of sight was apparent. Smyly speaks of a portion of a
tobacco pipe which was successfully removed from the anterior chamber
by an incision through the cornea. Clark mentions a case in which
molten lead in the eye caused no permanent injury; and there are
several cases mentioned in confirmation of the statement that the eye
seems to be remarkably free from disastrous effects after this injury.

Williamson mentions eyelashes in the anterior chamber of the eye, the
result of a stab wound of this organ.

Contusion of the eyeball may cause dislocation of the lens into the
anterior chamber, and several instances have been recorded. We regret
our inability to give the reference or authority for a report that we
have seen, stating that by one kick of a horse the lenses of both eyes
of a man were synchronously knocked through the eyeballs by the calkins
of the horseshoe. Oliver mentions extraction of a lens by a thrust of a
cow's horn.

Lowe speaks of rupture of the anterior capsule of the lens from violent
sneezing, with subsequent absorption of the lenticular substance and
restoration of vision. Trioen mentions a curious case of expulsion of
the crystalline lens from the eye in o