Unilateral lid retraction during pregnancy

A 32-year-old woman noted left lid retraction during pregnancy. Examination revealed unilateral enophthalmos without symptoms of diplopia or sinus dis ease. Orbital imaging showed characteristic features of the silent sinus sy ndrome, which were confirmed intraoperatively. The clinical and imaging att ributes of this syndrome are discussed, including possible mechanisms bf di sease development. Management strategies are summarized. A brief discussion of the differential diagnosis of enophthalmos is also included. (Surv Opht halmol 45:69-76, 2000. (C) 2000 by Elsevier Science Inc, All rights reserve d.).