It resembled the lens in size and shape.

Williams mentions continual tolerance of foreign bodies in the eyeball for fifteen 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.