Von Langenbeck of Berlin mentions an instance of fracture of the superior maxilla, in which the eyeball was so much displaced as to lodge in the antrum of Highmore.

Von Becker of Heidelberg reports the history of a case in which a blow from the horn of a cow dislocated the eye so far back in the orbit as to present the appearance of enucleation.

The conjunctiva hid the organ from view, but when it was pulled aside the eyeball was exposed, and in its remote position still possessed the power of vision.

In some cases in which exophthalmos has been seemingly spontaneous, extreme laxity of the lids may serve as an explanation.

There is an instance on record in which a Polish dew appeared in a Continental hospital, saying that while turning in bed, without any apparent cause, his eyeball was completely extruded.