Custom orbital implant in the repair of late posttraumatic enophthalmos.

We repaired late, posttraumatic enophthalmos in 21 patients by inserting a large, soft, Silastic block through a lower eyelid flap and transconjunctival approach to the orbit. These blocks were hand carved at the time of surgery to match bony defects as characterized by hypocycloidal tomographic biometry. Enophthalmos and hypo-ophthalmos were ameliorated with acceptable appearance in all cases. No implant rejections, migrations, or infections were found. Complications included upper eyelid blepharoptosis, lower eyelid retraction, and conjunctival prolapse. The improvements were stable over a median follow-up of 13 months.