Lid Retraction in the Non-paretic Eye in Acquired Ophthalmoplegia.

PARADOXICAL lid retraction of the ptotic lid on occlusion of the sound eye and several other synkinetic oculopalpebral phenomena are described in the literature in relation to ophthalmoplegia, congenital as well as acquired (Lewallen, 1958; Walsh, 1957). Fuchs's phenomenon of lid retraction on lateral movement, the pseudo-Graefe phenomenon with depression and lid retraction on elevation, are all observed in the ptotic eye. In a very few reported cases lid retraction occurs in the sound eye, when there is ptosis of the opposite lid. This retraction of the upper lid is an example of secondary deviation, proved by the fact that covering the ptotic eye is followed by a return to normal of the retracted upper lid of the nonparetic eye.